Re: [osg-users] [osgPlugins] Animated Gifs on iOS

[Alessandro Terenzi]

I'm thinking to create a osg::ImageSequence if the actual Gif file contains 
more than 1 image and return that instead of a osg::Image object...

I will test this approach more in depth and submit the improvement if there's 
no other way to use animated Gifs on iOS.

Cheers,
Alessandro

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[osg-users] [osgPlugins] Animated Gifs on iOS

[Alessandro Terenzi]

Hi,
I'm using OSG 3.6.3 on iOS and, as far as I understand, using imageio plugin 
the loading Gif images works fine, but I cannot see animations if the Gif is 
animated.

Looking at the imageio plugins source code, unless I missed something, no 
ImageStream is ever created, instead just a single Image is returned with the 
image stored at index 0.

Am I missing something or the imageio plugin should be updated to support 
animated Gifs?

Thank you!

Cheers,
Alessandro

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Re: [osg-users] GLES link error for unidentified Program

[Alessandro Terenzi]

I did some more tests, tried to remove that 'program' from 
StateSet::setGlobalDefaults () and I realised that, at last, that very program 
is really not tried to be linked at all (it looks like the attached shaders are 
not even compiled, but I'm not 100% sure). 

So, I cannot say that the error comes from that 'program' in 
StateSet::setGlobalDefaults(), also because I tried to print the addresses of 
the 'program's being linked and I cannot track the origin of the one that fails 
to link...I also tried to get its attached shaders during the application loop 
but none is really attached to that program (calling getNumShaders() returns 0 
on the 'program' that is not linked).

I think that what I am missing is a deeper understanding about what happens 
beyond the setup of the simple scene graph that I explicitly do with my code. 
Is there the possibility that OSG automatically creates a 'program' somewhere 
else beyond my explicit code? Any suggestion where to look? I tried to search 
for strings like "new osg::Program" or "getOrCreateProgram" but could not 
figure out anything yet...

Thanks.
Alessandro

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Re: [osg-users] GLES link error for unidentified Program

[Alessandro Terenzi]

Hi Robert,
and thanks again for your help and suggestions. I'm aware of the remapping done 
by OSG under the hood, indeed I had no issues with this when targeting GLES 2 
with version 3.4.0.

I investigated my issue further and found out that a osg::Program is added to 
the scene graph by the StateSet::setGlobalDefaults() method which does 
something like this:

  
Code:
osg::DisplaySettings::ShaderHint shaderHint = 
osg::DisplaySettings::instance()->getShaderHint();
if (shaderHint==osg::DisplaySettings::SHADER_GL3 || 
shaderHint==osg::DisplaySettings::SHADER_GLES3)
{
OSG_INFO<<"   StateSet::setGlobalDefaults() Setting up GL3 compatible 
shaders"<addShader(new osg::Shader(osg::Shader::VERTEX, 
gl3_VertexShader));
program->addShader(new osg::Shader(osg::Shader::FRAGMENT, 
gl3_FragmentShader));
setAttributeAndModes(program.get());
setTextureAttribute(0, createDefaultTexture());
addUniform(new osg::Uniform("baseTexture", 0));
}



this automatically added program is the one that fails while linking. 

Now I'm trying to understand why it fails, but my question is: why is this 
program added? Is it supposed to provide a 'default' program in case there's 
nothing else in the scene graph? Can I avoid it to be added? 

I'm also trying to understand where StateSet::setGlobalDefaults() is called in 
the first place...

Cheers,
Alessandro

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[osg-users] GLES link error for unidentified Program

[Alessandro Terenzi]

Hi,
I used to work with OSG 3.4.0 (stable) and now I'm trying version 3.5.10 on iOS 
(trying both GLES 2 and 3) but now I having the following error when the first 
frame is drawn:

glLinkProgram 0x1c41cda70"" FAILED
Program "" infolog:
ERROR: OpenGL ES requires exactly one vertex and one fragment shader to validly 
link.

Note that I have only one quad to which I apply a texture, I'm using a single 
'vertex' and 'fragment shader' and there's only on 'program' around. The same 
code works fine with OSG 3.4.0 and even though with version 3.5.10 there is the 
above error, the texture is nonetheless displayed.

If I use a more verbose notification level I see that my program "BckProgram" 
is compiled and linked correctly but then another program with empty name is 
tried to be linked and it is the one for which I'm receiving the above error, 
but I did not create a second program anywhere... am I missing something?

And here's the verbose log:

View::init()
cull()
cull() got SceneView 0x106510300
ShaderComposer::~ShaderComposer() 0x1c02d7450
Uniform Adding parent
Uniform Adding parent
Uniform Adding parent
Uniform Adding parent
Uniform Adding parent
Uniform Adding parent
Uniform Adding parent
end cull() 0x1065101f0
draw() got SceneView 0x106510300
Renderer::compile()
State::convertShaderSourceToOsgBuiltIns()
++Before Converted source 
varying vec2 texcoord;
void main(void)
{
texcoord = gl_MultiTexCoord0.xy;
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}


 Converted source 
attribute vec4 osg_MultiTexCoord0;
attribute vec4 osg_Vertex;
uniform mat4 osg_ModelViewProjectionMatrix;
varying vec2 texcoord;
void main(void)
{
texcoord = osg_MultiTexCoord0.xy;
gl_Position = osg_ModelViewProjectionMatrix * osg_Vertex;
}



Compiling A :VERTEX source:
1: attribute vec4 osg_MultiTexCoord0;
2: attribute vec4 osg_Vertex;
3: uniform mat4 osg_ModelViewProjectionMatrix;
4: varying vec2 texcoord;
5: void main(void)
6: {
7: texcoord = osg_MultiTexCoord0.xy;
8: gl_Position = osg_ModelViewProjectionMatrix * osg_Vertex;
9: }

State::convertShaderSourceToOsgBuiltIns()
++Before Converted source 
precision mediump float;
uniform sampler2D texture0;
varying vec2 texcoord;
void main(void)
{
gl_FragColor = texture2D( texture0, vec2(texcoord.x, 1.0-texcoord.y));
}


 Converted source 
precision mediump float;
uniform sampler2D texture0;
varying vec2 texcoord;
void main(void)
{
gl_FragColor = texture2D( texture0, vec2(texcoord.x, 1.0-texcoord.y));
}



Compiling A :FRAGMENT source:
1: precision mediump float;
2: uniform sampler2D texture0;
3: varying vec2 texcoord;
4: void main(void)
5: {
6: gl_FragColor = texture2D( texture0, vec2(texcoord.x, 
1.0-texcoord.y));
7: }

Linking osg::Program "BckProgram" id=3 contextID=0
State's vertex attrib binding 2, osg_Color
State's vertex attrib binding 12, osg_FogCoord
State's vertex attrib binding 3, osg_MultiTexCoord0
State's vertex attrib binding 4, osg_MultiTexCoord1
State's vertex attrib binding 5, osg_MultiTexCoord2
State's vertex attrib binding 6, osg_MultiTexCoord3
State's vertex attrib binding 7, osg_MultiTexCoord4
State's vertex attrib binding 8, osg_MultiTexCoord5
State's vertex attrib binding 9, osg_MultiTexCoord6
State's vertex attrib binding 10, osg_MultiTexCoord7
State's vertex attrib binding 1, osg_Normal
State's vertex attrib binding 11, osg_SecondaryColor
State's vertex attrib binding 0, osg_Vertex
Program "BckProgram" link succeeded, infolog:
WARNING: Could not find vertex shader attribute 'osg_MultiTexCoord7' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_MultiTexCoord5' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_SecondaryColor' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_MultiTexCoord1' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_MultiTexCoord6' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_FogCoord' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_Normal' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_Color' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_MultiTexCoord4' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_MultiTexCoord2' to match 
BindAttributeLocation request.
WARNING: Could not find vertex shader attribute 'osg_MultiTexCoord3' to match 
BindAttributeLocation request.

Uniform "texture0" loc=4 size=1 type=sampler2D
Uniform "osg_ModelViewProjectionMatrix" loc=0 size=1 type=mat4
Attrib "osg_MultiTexCoord0" loc=3 size=1
Attrib "osg_Vertex" 

Re: [osg-users] [osgPlugins] Unable to load texture in the same folder as the scene file

[Alessandro Terenzi]

Hi,
if you open the FBX file with a text editor you will see that, for each 
texture, the corresponding path is stored to refer to the absolute path in your 
computer file system... try to modify those paths by removing all the paths 
components but the filename of the texture (if you want the textures to be in 
the same folder as the .fbx file). 

You could also try to export the binary variant of the FBX file instead of 
ASCII, in that case be sure to check the embed media option in order to include 
the textures inside the FBX file itself.

Cheers,
Alessandro

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Re: [osg-users] [osgPlugins] iOS/OSX: avfoundation plugin not reporting correct media duration

[Alessandro Terenzi]

Hi Robert,
as far as I know the issue was present already with OSG version 3.4.0.

According to the AVFoundation documentation it seems that when one wants to 
access 'static' aspects of a media, such as the duration it is safe to rely on 
the AVAsset reference while when actually playing the media one has to use the 
AVPlayerItem instance, whose specific duration may be available only after a 
while... this is the reason, I think, the _duration variable is set to 0 in the 
above code.

This is what the doc says:


> AVAsset only models the static aspects of the media, such as its duration or 
> creation date, and on its own, is unsuitable for playback with an AVPlayer. 
> To play an asset, you need to create an instance of its dynamic counterpart 
> found in AVPlayerItem.


In my proposal, [avplayer.currentItem asset] is the AVAsset reference that 
stores the static duration of the movie, and avplayer.currentItem is the 
AVPlayerItem that is still used for playback.

Anyway, I'm not an expert of AVFoundation, so please, anyone with more 
experience with that is welcome to comment :)

Cheers,
Alessandro

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[osg-users] [build] CMake fails to find latest FBX SDK for iOS

[Alessandro Terenzi]

Hi,
found out that current version of FindFBX.cmake does not manage to find the FBX 
SDK version 2018.1.1 specifically for iOS.

To my understanding the reasons are:

1) the FBX_LIBDIR is not set to any of the real folders used for the 
iOS/simulator distribution, which are "ios-armv7" and "ios-386"

2) if we search for FBX_LIBNAME such as "libfbxsdk" (without ".a") CMake fails 
to find the library (I'm using CMake version 3.10.2) even if I explicitly set 
the extensions that it should look for

3) the FBX_SEARCH_PATH is missing "/Applications/Autodesk/FBX SDK/2018.1.1"

My proposal:

A) add the correct folders to search into
B) add the ".a" extension at least for iOS to the lib base name 
C) add the missing "/Applications/Autodesk/FBX SDK/2018.1.1" to FBX_SEARCH_PATH

I've already my modifications ready, if you agree I can send a pull request.

Cheers,
Alessandro

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[osg-users] [build] CMake fails to generate project for iOS

[Alessandro Terenzi]

Hi,
when trying to generate a valid Xcode project to build OSG for iOS I noticed 
that even if we follow the platform specific instructions available on the OSG 
website, one has to manually modify the path to many iOS frameworks that are 
not set correctly by CMake using the current version of the CMakeLists.txt file.

Specifically I tried with CMake 3.6.2, 3.9.6 and the latest 3.10.2. Xcode is 
version 9.2 and I am targeting iOS 11.0 as minimum deployment target.

Based on my experience the following frameworks are not set correctly and 
consequently the Xcode project fails to build:

OpenGLES.framework
AVFoundation.framework
CoreMedia.framework
CoreVideo.framework
QuartzCore.framework
SystemConfiguration.framework

Also zlib is not set correctly to the iOS SDK specific path. Since the official 
version of CMake's find does not manage to set those paths correctly I'm 
proposing to modify the OSG's CMakeLists.txt file. To this regards, is there 
anyone out there that is experiencing the same issue?

Cheers,
Alessandro

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[osg-users] [osgPlugins] iOS/OSX: avfoundation plugin not reporting correct media duration

[Alessandro Terenzi]

Hi,
I found out that when you want to know the duration of a media file, 
specifically a movie, the instruction:


Code:
_videoDuration = CMTimeGetSeconds([_data->avplayer.currentItem duration]);



returns 0, I tried to use the following instead:


Code:
_videoDuration = CMTimeGetSeconds([[_data->avplayer.currentItem asset] 
duration]);



that seems to return the correct movie's duration in seconds.

If you agree I will send a pull request about this fix.

Cheers,
Alessandro

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[osg-users] [ANN] Job Opportunity: Realtime 3D Computer Graphic Engineer (web/osgjs)

[Alessandro Terenzi]

Hello dear OSG-community, I'm posting a job call on behalf of my company, 
please read the details below and get in touch if you are interested. 

Job description

ABOUT INGLOBE TECHNOLOGIES

Inglobe Technologies is a leading company that develops Software and Solutions 
that enable the creation of Smart and Augmented Environments. Inglobe is the 
developer of the popular Augmented Reality (AR) platforms ARmedia, Hyperspaces, 
HyperIndustry and ARmedia SDK. With more than 60.000 registered users worldwide 
and +1.230.000 total installs of mobile apps, Inglobe provides AR solutions and 
software to different market segments, including Architecture, Engineering & 
Construction (AEC), Avionics and Aerospace, Medical & Healthcare, Process 
Industry, Manufacturing, Media & Publishing, Cultural Heritage and Education. 
More on the company here: http://www.inglobetechnologies.com.

POSITION OPEN

Position: Realtime 3D Computer Graphic Engineer (web)

Kind of Position: Full Time

Kind of Contract: Permanent Contract by the Italian Law

Other options: we also consider professional collaborations with different 
contracts (e.g. Partita IVA holders)

Requisite: remunerated trial period: 1-2 months

Place: the resource will be employed in one of the following company offices in 
Italy: Ceccano, Rome, Milan

DESCRIPTION OF POSITION

We are seeking an experienced software engineer with 3D computer graphics 
skills especially related to web technologies. This engineer will work 
primarily on custom virtual and augmented reality web applications supposed to 
run smoothly on the most used browsers.

RESPONSIBILITIES

Develop Highly Interactive and Advanced 3D Applications

Collaborate with the Project Team to deliver quality code on schedule

EDUCATION

B.S in Computer Science, Computer Engineering or related field (Preferred)

EXPERIENCE

1+ years experience with 3D technologies for the Web

1+ years of development of 3D real-time applications is a PLUS

1+ years Unity3D is a PLUS

1+ year experience with any AR SDK or Authoring Tool is a PLUS

REQUIREMENTS

Design and analysis of software components

Reliable time management and task estimation

Programming Patterns

Knowledge of Windows and Mac OS X operating systems

Knowledge of Real-time 3D Computer Graphics concepts and methods

Good to excellent Three.js skills

Good to excellent PHP, Python, JavaScript, HTML/CSS and bash scripting skills

Good to excellent OpenGL/OpenSceneGraph/GLSL skill

Design and implementation of modern and effective GUI

SKILLS (PLUS)

C/C++ programming skills

Good to excellent iOS/Android Programming Skills

Knowledge of Computer Vision concepts and Libraries

Knowledge of Artificial Intelligence and Machine Learning concepts and Libraries

LANGUAGE AND COMMUNICATION

English Fluent (both written and spoken)

Good communication and relational capabilities

Italian, French, Spanish, Russian, Chinese, or Portuguese is a plus

PERSONAL INFORMATION

Besides the above, we are seeking for individuals who are also:

Autonomous, i.e. you are able to solve problems autonomously without relying on 
the help of anybody else thanks to a strong attitude toward careful reflection 
and research

Creative, i.e. when you face a new problem you do not limit yourself to 
experiment just with the existing solutions, instead you find a new solution 
that possibly integrates and improves, if it does not totally replace, the 
existent

Open-minded, i.e. it is normal for you to offer your best contribution to the 
team even if this might require others to change their mindset; on the other 
hand it is normal for you to accept constructive criticism from others when it 
is meant to improve the quality of the outcomes

Pragmatic, i.e. you work to reach the goals and aim at resolving a problem 
efficiently without getting lost in its many possible ramifications 
unnecessarily

Problem Solver, i.e. you are not scared by new problems and challenges; on the 
contrary they exalt your capability to solve them

Collaborative, i.e. when you deal with a complex problem you are willing to 
collaborate with others in finding a solution; not only you offer your 
contribution, but you are always ready to review your ideas and work anytime 
when necessary

Accurate, i.e. your job is always carried out and described in a synthetic and 
as complete as possible way

Curious, i.e. you are always seeking new information and you like learning new 
things

Traveler, i.e. traveling around the globe does not scare you, on the contrary 
it stimulates you

If you recognize yourself in the profile above then you could be the ideal 
candidate!

Applications can be sent to  or through LinkedIn 
https://www.linkedin.com/jobs/view/504568916/.

Looking forward to hearing from you!
Alessandro

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Re: [osg-users] [osgPlugins] Osg to fbx

[Alessandro Terenzi]

Hi Joe,
I'm quite confident that the latest version of OSG works with the latest
version of the FBX sdk... did you tried them?

Alessandro

On Wednesday, May 3, 2017, Joe Kindle  wrote:

> Hi,
> I'm using visual studio 2012, osg version 3.0.1
> I want to convert osgb file into fbx, the problem is :
> Version 3.0.1 supports fbx sdk 2012.1, and it supports visual studio 2010
> only
> What is the best solution ? I want to stay with that version of visual
> studio (2012). What versions of osg, fbx sdk should I use ?
>
>
> ...
>
> Thank you!
>
> Cheers,
> Joe
>
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>
>
>
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Re: [osg-users] Shadows on "invisible" objects

[Alessandro Terenzi]

Hi Nick,
as far as I understand you'd like to cast shadows onto a geometry that is
kind of invisible but still can receive shadows, is this right?

Have you already read these?

http://forum.openscenegraph.org/viewtopic.php?t=8912=invisible+shadow

http://forum.openscenegraph.org/viewtopic.php?t=12628=invisible+shadow

Hope these will help.
Alessandro

On Tue, Mar 28, 2017 at 9:06 AM, Trajce Nikolov NICK <
trajce.nikolov.n...@gmail.com> wrote:

> Hi Community,
>
> I am trying to solve a problem where my scene is with shadow caster model
> where I want to see only the shadows and have the shadow caster model
> invisible. What would be the node masks game to achieve this? or some other
> solution?
>
> Thanks a bunch as always
>
> Nick
>
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[osg-users] StatsHandler on mobile devices

[Alessandro Terenzi]

Hi,
is there any way to show rendering statistics (by means of the StatsHandler 
class) programmatically (i.e. without the need to press any key)? I'd like to 
show those stats when the viewer runs on mobile devices where the keyboard is 
not available.


Thanks.
Alessandro

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[osg-users] OcclusionQueryNode iOS Crash

[Alessandro Terenzi]

Hi,
I'm trying to use the OcclusionQueryNode to check if a model (loaded from a 
file) is visible or not, but as soon as the app starts I get some warnings:


Code:
Warning: detected OpenGL error 'invalid enumerant' at Before Renderer::compile
Warning: PolygonMode::apply(State&) - is not supported.
Warning: PolygonMode::apply(State&) - is not supported.
Warning: detected OpenGL error 'invalid operation' at after RenderBin::draw(..)



the first frame is actually drawn (and the loaded model is also displayed 
correctly) but the app crashes with this message: 


Code:
error: memory read failed for 0x0



I'm using OSG 3.4.0 on iOS (8.4.1). Built with OpenGLES 1.0 support. FYI, I'm 
just adding the OcclusionQueryNode to a group and then I add a subgraph (where 
there's the loaded model) to the OcclusionQueryNode itself. Moreover regardless 
if I enable or not the occlusion node (by means of setQueriesEnabled(bool)) the 
app crashes in any case.

Do you know if OcclusionQueryNode has some problems on iOS? Any suggestion?

Thank you.
Alessandro

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[osg-users] Problems with MultiTouchTrackballManipulator on iOS.

[Alessandro Terenzi]

Hi,
recently I updated my apps from OSG 3.2.0 to OSG 3.4.0 and I noticed that the 
MultiTouchTrackballManipulator behaves differently. Specifically while single 
touches are working almost the same (for instance to rotate the view), the 
pinch gesture is quite different because even if I try to make a very small 
pinch, the model disappears suddenly. I checked that the near and far planes 
are correctly set, so maybe the problem must be somewhere else. Is there a 
'speed' parameter that controls how much the gesture affects the manipulator?

I am thinking about a 'speed' parameter because actually also the camera 
rotation controlled by the manipulator (single touch gesture) is either very 
slow or incredibly fast.

Thank you.
Alessandro

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Re: [osg-users] ColorMask and depth information issue.

[Alessandro Terenzi]

Hi Robert,
thank you for the answer, I managed to get to the expected result following 
your suggestion.

Thanks.
Alessandro

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Re: [osg-users] ColorMask and depth information issue.

[Alessandro Terenzi]

Thank you again Robert for your explanation.

So I tried to explicitly set some render bins but I am not sure to understand 
what happens now.

I am attaching 2 files: the yellow box and a blue box to which I apply the 
color mask. I modified both files in order to use the same render bin number 
and name (RenderBin), what I observe is:

1) if the bin number of the color-masked box is lower than the other then it 
hides the yellow box

2) if the bin number of the color-masked box is higher than, or equal to, the 
other then it does NOT hide the yellow box

I expected the opposite, am I wrong? 

Also, if instead of using RenderBin I use DepthSortedBin then the behavior 
is similar but, in the case where the bin numbers are equal, then the occlusion 
works only up to a certain viewing angle.

Cheers.
Alessandro

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Attachments: 
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http://forum.openscenegraph.org//files/b_o_129.osg


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Re: [osg-users] ColorMask and depth information issue.

[Alessandro Terenzi]

Sorry Robert, 
I tried to cleanup that file but missed to remove a bracket. Anyway, I have 
fixed it and also exported another .osg file where I apply the ColorMask to a 
quad.

I tried on Windows (where I currently have OSG 3.4.0 rc9...) and if I open the 
3 models together at the same time I still see the problem: the red box is 
hidden while the yellow one is not.

I am attaching the 3 .osg files again. Please let me know if you also have this 
problem on Linux or whatever you are using now.

Thanks.
Alessandro

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Re: [osg-users] ColorMask and depth information issue.

[Alessandro Terenzi]

Have you tried to rotate the view? There's a plane hanging over the red and 
yellow boxes and unless you move the camera you won't realize about it's 
presence in the scene (regardless of the ColorMask).

I'm attaching a couple of screenshots related to what I get with and without 
the color mask applied to the plane after having rotated the camera a little 
bit.

Cheers,
Alessandro

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Re: [osg-users] ColorMask and depth information issue.

[Alessandro Terenzi]

Thank you Robert.
I will try to setup an example on a desktop computer.

Just to add more to the topic, I tried to call 
osg::Camera::getOrCreateStateSet()-setGlobalDefaults(); but nothing changed. 
And here's how I setup my camera (that is not the one coming from the viewer):


Code:
foreground_camera = new osg::Camera;
foreground_camera-getOrCreateStateSet()-setGlobalDefaults();
foreground_camera-setViewport(new osg::Viewport(0, 0, captureWidth, 
captureHeight));
foreground_camera-setReferenceFrame(osg::Transform::ABSOLUTE_RF);
foreground_camera-setClearMask( GL_DEPTH_BUFFER_BIT );
foreground_camera-setRenderOrder(osg::Camera::POST_RENDER, 2);
foreground_camera-setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
foreground_camera-setCullingMode(osg::CullSettings::NO_CULLING);



This camera is supposed to render objects on top of a video camera feed.

I am attaching also 2 simple boxes (osgt) one is correctly hidden the other is 
not.

Cheers,
Alessandro

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Re: [osg-users] ColorMask and depth information issue.

[Alessandro Terenzi]

Using render bins makes sense but what I still do not completely understand is 
why the very same setup with OSG 3.2.1 worked as I expected despite of render 
bins and, also, since the occluder plane is taken into account to fill the 
depth buffer (as well as the boxes) why it is still required to explicitly set 
render bins? Does it make sense if they all live in the same render bin?

Thanks.
Alessandro

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[osg-users] ColorMask and depth information issue.

[Alessandro Terenzi]

Hi,
I am having a problem related somehow to osg::ColorMask ... in order make an 
object invisible while still taking it's depth information into account I use 
these instructions:


Code:

osg::ref_ptr osg::ColorMask  mask = new osg::ColorMask(false, false, false, 
false);
my_model-getOrCreateStateSet()-setAttributeAndModes(mask.get(), 
osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE)




This used to work fine with OSG version 3.2.1 but I've tried using OSG 3.4.0 
(stable release) and now the object is still not rendered but also the depth 
information seems to be ignored because other objects that are supposed to be 
behind that 'invisible' objects are not hidden by it anymore.

I'm using GLES1 profile on iOS. Tried to apply the color mask on a model loaded 
from FBX or OBJ.

Any suggestion?

Thanks.
Alessandro

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Re: [osg-users] Problems loading OSGB files created with old version of OSG.

[Alessandro Terenzi]

Hi Robert,
I am not sure about the exact version I used... we are talking of 2 years ago 
and, as far as I remember, I used the latest version available at that time to 
build OSGExp plugin for 3ds Max and to export the model I've shared (maybe it 
was version 2.9.4).

Also, if it can help, osgviewer built against OSG version 3.1.0 can open that 
model without errors (but with the messages I posted in my previous message).

What I can do is to export a new animated model using a more recent version of 
OSGExp and check if there exists the same problem.


Cheers,
Alessandro

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Re: [osg-users] Problems loading OSGB files created with old version of OSG.

[Alessandro Terenzi]

Hi Robert,
I tried the conversions you suggested, during the conversion process I received 
these messages:

InputStream::readObject(): Unsupported wrapper class 
osg::ComputeBoundingBoxCallback
InputStream::readObject(): Unsupported wrapper class osg::UpdateCallback
InputStream::readObject(): Unsupported wrapper class 
osg::ComputeBoundingBoxCallback
InputStream::readObject(): Unsupported wrapper class osg::UpdateCallback

This, by the way, was the reason I wanted to upgrade to OSG 3.4.0.

Then, tried to open the converted models using osgviewer (3.4.0) and they all 
work (even though the ive and osgt variants have misplaced geometries) - 
the original animation seems that has been removed, or at least it does not 
work anymore: with the ive variant osganimationviewer crashes, whereas with 
osg and osgt variants the animation is actually found (as Take 001) but 
the geometries do not move at all.

I am attaching a zip with the original OSGB file and the converted variants.

Thank you.
Alessandro

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[osg-users] Problems loading OSGB files created with old version of OSG.

[Alessandro Terenzi]

Hi,
I am experiencing some problems when I try to load osgb files containing 
animations. Those files were created with a quite old version of OSG and now 
I'm trying to load them using version 3.4.0 rc9. If I try to load models 
without animations then they are opened correctly.

Basically here's the message I get:

InputStream: Failed to read from stream. At osg::Node

When enabling a more verbose notify level I get the log attached to this post.

As far as I could try the problem seems to exist both on Windows and iOS.

Any suggestion?

Thanks.
Alessandro

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Re: [osg-users] Problems loading OSGB files created with old version of OSG.

[Alessandro Terenzi]

Understood. I will try to find the original scenes, export them again using a 
new version of OSGExp re-built against OSG 3.4.0 and see what happens.

Thanks.
Alessandro

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Re: [osg-users] iOS: flickering problem when changing orientation and using AutoLayout

[Alessandro Terenzi]

I came across this issue...again.

What I found out this time is that when the OSG view is resized (because of 
Auto Layout trying to enforce some constraints), that UIView is resized 
correctly but it also has a subview (created by OSG automatically I guess) that 
keeps the original size and is displayed behind the first view... in some 
cases, in order to avoid the problem, one has to change the viewport to match 
the 'original' size and not the new one but this does not work in every case of 
course.

This is particularly annoying when using Size Classes.

Anyone had the same issue? Any suggestion/workaround?

Thanks.
Alessandro

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[osg-users] GLES 2 and models loaded from files without any shader definition

[Alessandro Terenzi]

Hi,
I'm trying to develop apps for iOS using GLES 2, so far I managed to build OSG 
3.2.1 to use GLES 2 and as long as I create some geometry and manually 
load/apply GLES 2 shaders everything is fine. On the other hand I am 
experiencing some issues when I try to load models from files (not containing 
any shader definition - OBJ, FBX and some OSG/OSGT).

I know that when I use such kind of models then I should provide GLES 2 shaders 
in order to display them and, to my understanding, there are 3 possibilities:

1) manually apply shaders to the loaded model

2) use ShaderGenVisitor that generates shaders automatically

3) use Shader Composition

I tried using ShaderGenVisitor, but it looks like that the shaders that are 
generated are not GLES 2 compliant (because of missing pre-built attributes), 
and even though attribute aliasing is applied, not every gl_ attribute is 
translated to the corresponding osg_ version. For instance in the converted 
version I have a row like this:

  gl_Position = osg_ModelViewProjectionMatrix * gl_Vertex;

Note that only gl_ModelViewProjectionMatrix has been converted but for some 
reason gl_Vertex has not changed.

Also, there are attributes that are not translated at all, like gl_TexCoord and 
gl_LightSource.

Searching the forum, it looks like that the ShaderGen approach should be 
replaced by Shader Composition, so I wanted to try it but I'd need some 
directions to start with it...so far I only managed to enable it like this:

  state-SetShaderCompositionEnabled(true);

Where state comes from the viewer's window. But no model is displayed by the 
viewer.

Actually I am not sure at all that I should use Shader Composition, so my 
question is: if in my GLES 2 app I want to display models loaded from files 
(not containing any shader definition), what should I use and where should I 
look at to get started?

Thanks.
Alessandro

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Re: [osg-users] GLES 2 and models loaded from files without any shader definition

[Alessandro Terenzi]

Hi Robert,


 ShaderComposition still requires you to put together the shaders so won't 
 instantly give you what you after.  The ShaderComposition functionality is 
 also experimental. 
 
 In your case it's probably best just to implement your own shaders. 


In order to follow your suggestion, can you point me to an example (if 
available) that shows how to use ShaderComposition with my own shaders 
implementation? If I understood correctly this would make my life a little 
easier but I still would need to do some manual work (ie just to provide custom 
GLES 2 shaders source code), am I correct? I guess that this would be fine in 
my case.

Thank you.
Alessandro

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[osg-users] iOS: Crash when deallocating viewer on arm64 devices.

[Alessandro Terenzi]

Hi all and happy New Year!
I'm facing an issue related to OSG for iOS, specifically I built OSG for the 
following architectures: armv7, armv7s and arm64 but when I build my iOS app 
and run it on a device with arm64 I got a crash when the viewer is deallocated, 
in particular somewhere in GraphicsWindowIOS::closeImplementation().

A workaround would be just not to build for arm64, but the problem is that 
starting from the February the 1st Apple requires that architecture otherwise 
the app would be rejected.

Any idea or suggestion about this issue? Has anyone else experienced it?

Thanks.
Alessandro

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Re: [osg-users] [forum] iOS: texture memory not released

[Alessandro Terenzi]

Hi Robert,
thank you for updating the documentation.

As mentioned earlier I was using release() where I was not supposed to, anyway 
after having updated my code I noticed that there is a potential issue related 
to some memory not being released by the osgdb_fbx plugin... specifically I 
noticed that when the plugin loads a file it first sets the CACHE_IMAGES option.

To my understanding this makes the osgDB::Registry instance to keep references 
to loaded images contained in the FBX file. The problem is that it seems that 
the fbx plugin seems not to clean the registry cache (even when it is not used 
anymore), so my question is: is the fbx plugin supposed to clean the cache 
after it has done its job or this task is supposed to be done 
'manually/explicitly ' by the user?

Or in general, when the registry cache is supposed to be cleaned? Is the viewer 
in charge of cleaning the registry's cache when it has done?

Thanks.
Alessandro

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Re: [osg-users] [forum] iOS: texture memory not released

[Alessandro Terenzi]

Hi again,
I've done other tests and I think that the problem is not just related to Image 
but to the Referenced class in general, because in my last test I just derived 
a simple class from Referenced, added a member variable to my ViewController 
like this:

osg::ref_ptrMyReferencedClass test_obj;

then I instantiated test_obj and when I release it, its destructor is never 
called (even though the reference count is set to 0 and the test_obj seems to 
be not valid anymore).

Moreover, if I use just simple pointers, like this:

MyReferencedClass* test_obj_2;

then it's destructor is called. So, to my understanding, the problem happens 
only when using ref_ptr.

I have searched the Internet for something ObjectiveC 's specific, and found 
that there exist a compiler option GCC_OBJC_CALL_CXX_CDTORS that should/can be 
used to ask the OBJ-C code to call Cxx destructors, but actually it seems not 
to make any difference in my case.

I am quite sure that it is something that depends on the compiler options or 
some Xcode settings, I use to use OSG from iOS SDK 4 and never had such an 
issue, I am experiencing it now with iOS SDK 7 and 8.

Thanks
Alessandro

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Re: [osg-users] [forum] iOS: texture memory not released

[Alessandro Terenzi]

The problem was exactly in the way I was releasing test_obj, I misunderstood 
the ref_ptr::release() semantic (my fault, sorry) but now that I had a second 
look at its implementation I saw that it calls unref_nodelete() and not unref() 
and that wrong assumption of mine lead to memory leaks. 

Thank you anyway for all the info and suggestions provided so far.
Alessandro

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Re: [osg-users] [forum] iOS: texture memory not released

[Alessandro Terenzi]

Hi again,
unfortunately I was wrong, I still experience the same problem. Furthermore, I 
managed to reproduce it even in the very simple case where I just create a 
osg::Image object (loading it from disk) and releasing it immediately: the 
memory does not get deallocated even though the image reference's count is 
correctly set to 0.

Note: the problem happens even if I do not create any viewer and do not create 
any OpenGL context, I am just loading an image from disk into an osg::Image 
object.

Any suggestion?

Thanks.
Alessandro

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Re: [osg-users] [forum] iOS: texture memory not released

[Alessandro Terenzi]

Hi Robert,
thank you for your answer, I guess that what you have talked about is exactly 
what is happening in my case.  

Indeed, I tried to 'manually' release the textured objects while the rendering 
loop is still active and I assured that this happened in the same thread that 
created the OpenGL context: in this case everything is freed as expected and in 
a very short time.

Now I have to figure out why this does not happen when I 'dealloc' the view 
controller that originally created the rendering context (I'm releaseing OSG 
stuff in the 'destructor' of the view controller), I guess that this may be 
related to the fact that the 'dealloc' operation actually happens in a 
different thread (need to check this), so even though I release the scene graph 
and the viewer, all those OpenGL objects are kept in memory (as you said). 
Provided that I will free all resources in the right thread, is there a way 
(API) to force the viewer to delete that orphaned OpenGL texture object or this 
can happen only automatically?

Cheers,
Alessandro

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Re: [osg-users] [forum] iOS: texture memory not released

[Alessandro Terenzi]

Thank you Robert,
I will try to understand if I really need to use those methods or if I manage 
to let the viewer do all the cleanup as it is supposed to do.

Cheers,
Alessandro

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[osg-users] [forum] iOS: texture memory not released

[Alessandro Terenzi]

Hi,
I've noticed that when I load a model with a texture and then dismiss the 
ViewController that displays that model, even though I correctly release it's 
memory (I'm tracing reference counts and I see that they always are 0 when the 
ViewController is dismissed), all the memory related to textures is still 
allocated. Anyone having this same issue? Moreover, it looks like that the same 
texture is allocated several times (2 or 4 depending on the plugin I use to 
load a model, for instance using fbx I see a couple of allocations while when 
using obj I see 4 allocations...and every single one remains allocated).

I'm using OSG 3.2.0, iOS SDK (as well as iOS itself) is 7 or 8 and tried with 
both Xcode 5.1.1 and Xcode 6. Don't know if this could be meaningful but I 
built OSG and my app with these compiler settings:

C Language Dialect: compiler-default
C++ Language Dialect: compiler-default
C++ Standard Library: libstdc++

I am attaching a couple of stack traces captured using Instruments and related 
to the same run/same snapshot.

Thank you for your help.
Alessandro

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[osg-users] iOS: texture memory not released

[Alessandro Terenzi]

Hi, 
I've noticed that when I load a model with a texture and then dismiss the 
ViewController that displays that model, even though I correctly release it's 
memory (I'm tracing reference counts and I see that they always are 0 when the 
ViewController is dismissed), all the memory related to textures is still 
allocated. Anyone having this same issue? Moreover, it looks like that the same 
texture is allocated several times (2 or 4 depending on the plugin I use to 
load a model, for instance using fbx I see a couple of allocations while when 
using obj I see 4 allocations...and every single one remains allocated). 

I'm using OSG 3.2.0, iOS SDK (as well as iOS itself) is 7 or 8 and tried with 
both Xcode 5.1.1 and Xcode 6. Don't know if this could be meaningful but I 
built OSG and my app with these compiler settings: 

C Language Dialect: compiler-default 
C++ Language Dialect: compiler-default 
C++ Standard Library: libstdc++ 

I am attaching a couple of stack traces captured using Instruments and related 
to the same run/same snapshot. 

Thank you for your help. 
Alessandro

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[osg-users] iOS: flickering problem when changing orientation and using AutoLayout

[Alessandro Terenzi]

Hi,
I'm experiencing a problem related to orientation changes on iOS and AutoLayout.

Specifically, in InterfaceBuilder I created a UIView where I render OSG stuff, 
I made this view a subview of the ViewController's main view, then if I add 
some constraints among those views (in order to resize the OSG view 
appropriately), I see that when orientation changes, the OSG view content 
flickers a lot between a couple of frames (when I go back to the original 
orientation everything works again) . If I remove the constraints then the 
issue disappears.

Anyone with the same problem? Any suggestion?
Thanks!

Alessandro

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[osg-users] [osgPlugins] imageio plugin memory issue.

[Alessandro Terenzi]

Hi,
while profiling my iOS app I noticed that when I load a model with a texture 
memory grows up to 130MB, after a while it drops down to 64MB and even if I 
release the memory of the whole scene graph (I dealloc the whole ViewController 
that hosts all the osg stuff...) those 64MB remain allocated on the heap. Using 
the Instruments tools I found out that the responsible for that allocation is 
this function:

osg::Image* CreateOSGImageFromCGImage(CGImageRef image_ref);

Anyone having the same issue? Any suggestion about a possible solution?

I used the latest OSG developer release (3.3.1) and also the stable release 
(3.2.0).

Thanks.
Alessandro

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[osg-users] [build] Cannot generate Xcode project (OSX 10.9/Xcode 5)

[Alessandro Terenzi]

Hi,
just downloaded the latest sources from GIT but I am facing some issues when I 
try yo generate the Xcode project for iOS, I am using Mac OS X 10.9 and Xcode 
5...I set CMake variables in order to build of OpenGLES 2 (as suggests here: 
http://trac.openscenegraph.org/projects/osg//wiki/Community/OpenGL-ES), but I 
get an error regarding the variable OPENGL_INCLUDE_DIR not being set (in the 
past I did not touched that variable in any way and always managed to generate 
the Xcode project), am I missing something new now? Any suggestion?

Thanks.
Alessandro

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Re: [osg-users] [build] Cannot generate Xcode project (OSX 10.9/Xcode 5)

[Alessandro Terenzi]

Hi Stephan,
yes, I did specify OSG_BUILD_PLATFORM_IPHONE, but the OPENGL_INCLUDE_DIR was 
not set. 

Finally I managed to generate the Xcode project by manually set it to: 
/System/Library/Frameworks/OpenGL.framework.

Cheers.
Alessandro

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[osg-users] [ANN] New Augmented Reality project based on OSG - crowdfunding started

[Alessandro Terenzi]

Hi all,
I am glad to announce that at Inglobe Technologies (http://www.armedia.it) we 
have just launched a crowdfunding campaign for our new Augmented Reality 
project I-Mechanic 
(http://www.indiegogo.com/projects/i-mechanic-the-ar-app-that-turns-yourself-into-a-mechanic).

We have been working hard on our new 3D tracking technology and we prepared 
some demonstrations  (http://www.youtube.com/inglobe)during the last few 
months, all of which were bases on OpenSceneGraph for iOS. Some of them were 
also presented at the Augmented World Expo 2013 in Silicon Valley last June.

Now we have decided to turn one of these demos into a real App: I-Mechanic is 
the name of the project, if you'd like to contribute have a look at the 
campaign website: 

http://www.indiegogo.com/projects/i-mechanic-the-ar-app-that-turns-yourself-into-a-mechanic

Looking forward to receive your feedback and, hopefully, your contribution :)
Alessandro[/img]

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Re: [osg-users] NPOT textures on iOS (GLES 1.x)

[Alessandro Terenzi]

Hi Stephan,
thank you for your help, it works indeed...I've tried with a new clean project 
and everything went fine (maybe there was something wrong in the app/project I 
was originally trying it with).

Cheers.
Alessandro

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[osg-users] NPOT textures on iOS (GLES 1.x)

[Alessandro Terenzi]

As far as I know, if we want to use NPOT textures on iOS (specifically using 
GLES 1.x APIs) we have to use a subload callback. No problem with this, but 
I've also found that many developers suggest to use a specific extension 
created by Apple itself that should allow the usage of such textures by simply 
setting the wrap mode to CLAMP_TO_EDGE.

I tired this other approach with OSG, but it seems not to work...is there 
something else (beyond setting the wrap modes) that must be done in order to 
use that extension? Anyone managed to use it successfully?

The extension should be called GL_APPLE_texture_2D_limited_npot.

Thanks.
Alessandro

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Re: [osg-users] Video textures on iOS (and audio)

[Alessandro Terenzi]

Hi Stefan,
thanks for the explanation, I will try to follow your suggestion.

Alessandro

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Re: [osg-users] Video textures on iOS (and audio)

[Alessandro Terenzi]

Hi again,
I managed to use the avfoundation plugin, everything seems to work fine but I 
have an issue with a video that was recorded using an iPhone (portrait mode): 
when it is played on a texture, it is rotated by 90 degrees. That same video is 
not rotated if I play it for example on a PC or Mac using other plugins 
different than avfoundation (in particular the quicktime plugin)...other movies 
downloaded from the web are not rotated, as well as any movie recorded by the 
iPhone in landscape mode.

I guess that AVFoundation can find out that the video should be played 
'vertically' so it rotates it automatically (indeed it is played correctly by 
QuickTime on my Mac) and this should be the correct behavior also if playing in 
a media player on iOS, but what do you think the correct behavior should be 
when the movie is applied to a 3D plane as a texture? Just let AVFoundation 
rotate the video or not? If yes, is there a way to avoid this (for instance by 
querying the movie file, just guessing...)?

Thanks.
Alessandro

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Re: [osg-users] Video textures on iOS (and audio)

[Alessandro Terenzi]

Thanks Stefan,
just trying it now.

Cheers,
Alessandro

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Re: [osg-users] Video textures on iOS (and audio)

[Alessandro Terenzi]

Hi Stefan,
thank you for the update, I look forward to trying the avfoundation plugin... 
but can you provide some help to let me configure CMake in order to generate a 
target for that plugin? So far it is missing in the project I get from CMake.

Thank you.
Alessandro

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[osg-users] Cannot load models with user's data on iOS.

[Alessandro Terenzi]

Hi,
when reading a model (osgb) into my iOS app, I get the following error:


Code:
InputStream::readObject(): Unsupported wrapper class 
osg::DefaultUserDataContainer
InputStream::readObject(): Unsupported wrapper class 




As far as I understood this is because that model defines some user's data for 
certain nodes, but on iOS this seems to be not supported or, at least, there is 
something missing among the static libraries I'm linking to.

Is there something I have to do (perhaps adding a USE_DOTOSGWRAPPER macro...) 
in order to be able to read models with user's data on iOS?

Thanks.
Alessandro

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[osg-users] osgviewer random crashes on a Quadro 2000M

[Alessandro Terenzi]

A user of our OSG application is experiencing some random crashes on his 
machine. To investigate the problem I provided the osgviewer application and he 
keeps experiencing the same problem. By the way, if a crash occurs, then it 
occurs at the very beginning and no OpenGL windows (context?) is displayed 
(created?) at all, but if osgviewer does not crash at the beginning then it 
won't crash while running.

I could not manage to reproduce those crashes on any of my computers, 
unfortunately none of them is like that users' one: he's using a DELL laptop 
with a NVidia Quadro 2000M with the latest official NVidia video drivers. The 
operating system is Windows 7 - 64 bit and OSG is version 3.0.1 - 32 bit. As 
reported by the user, every other OpenGL app is working fine.

If he chooses not to use the NVidia card but to rely only on the integrated 
card, no crashes occur with osgviewer. 

Anyone experienced such issues? 

I'd like to further investigate the problem on that user's machine, but before 
proceeding, I'd like to ask you if there is something specific that I should 
look for or take care of. Can you suggest how to proceed to narrow down the 
possible causes for that kind of problems?

Thanks.
Alessandro

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Re: [osg-users] Problems with textures converted

[Alessandro Terenzi]

In some cases, that bad visualization is due to the Gamma/LUT Correction. Don't 
know if this is also your case, but try disabling the Gamma/LUT Correction: 
from Rendering menu, Gamma/LUT Setup..., Gamma and LUT tab and finally uncheck 
the Gamma/LUT Correction option.

Hope this helps.
Alessandro

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Re: [osg-users] osgmaxexp problems

[Alessandro Terenzi]

 Hi,
 I have compiled osgmaxexp svn rev 236 without problems, but when using that
 I get this error when running 3DS max 2012 (32bit version):

 DLL (OSGEXP.dle) failed to initialize. Error code 998 - Invalid access to
 memory location.



 Anyone else had the same problem, with possible solution?

Don't know if this is your case, but: are you sure you are using the
32 bit version of OSGEXP.dle? Be sure to use the correct version
depending on the version of Max you are really using (32 vs. 64 bit).

Alessandro
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[osg-users] [osgPlugins] FBX plugin: mixing skin and morph animation.

[Alessandro Terenzi]

Hi,
I've noticed a problem when using the FBX plugin when I setup a scene in 3dsMax 
with an object that has both the skin and morpher modifiers applied: 

If I export using the FBX exporter 2012.2 then in osgviewer only the skinning 
animation is played while the morphing is not. On the other hand, if I play the 
FBX file using QuickTime player then both animations are played. The problem 
exists regardless of the order of the applied modifiers.

I'm attaching a sample FBX file that you can use to reproduce the problem.

One last note: I'm using OSG 3.0.1.

Cheers,
Alessandro

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Re: [osg-users] Particles on iOS

[Alessandro Terenzi]

Hi Su,
please refer to any of the (many) threads that already discusses the topic 
you're interested in (building for iOS), anyway in order to build (anything) 
for iOS you need at least a Mac, then Xcode and so you'll be able to develop 
for the simulator, finally if you need to build for a real device you'll need 
also to be enrolled in the Apple developer program.

Do not want to look unkind :) anyway, please, as a general rule do not ask 
questions that do not relate to the thread, rather start a new one if your 
question is not already in any other thread ;)

Regards.
Alessandro

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[osg-users] Particles on iOS

[Alessandro Terenzi]

Hi,
I'd like to use osgParticles on iOS, I tried the example from the book 
OpenSceneGraph 3.0.0 - Beginners Guide, but I get lots of warnings like this:

Warning: ParticleSystem::drawImplementation(..) not fully implemented.

and visualization get messed.

Maybe I'm doing something wrong, but I'd like to ask if, in general, 
osgParticles are supposed to work on iOS and if there are any issue with them.

Thanks.
Alessandro

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Re: [osg-users] [ANN] New OSG book on the way, and new plan of OSG recipes

[Alessandro Terenzi]

Your first book 'OpenSceneGraph 3.0: Beginner's Guide' has been really
useful for me (I'd recommend it to anyone interested in OSG and
computer graphics), I'm sure the cookbook will fulfill my expectations
as well. Looking forward to buy it.

By the way would you share a table of content? I'm really interested
in what will be covered in the book.

Cheers and best wishes for your wedding! :)
Alessandro

On Thu, Sep 29, 2011 at 9:31 AM, Torben Dannhauer tor...@dannhauer.info wrote:
 Hi Wang,

 this idea is great, I would like to contribute a detailed recipe how to use 
 osgVisual :)

 best regards,

 Torben

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[osg-users] Issues with osgShadow and diffuse+reflections maps

[Alessandro Terenzi]

I'm trying different shadows techniques with some simple models and I'm facing 
some issues when I try to add shadows to a scene where an object has both a 
diffuse and reflection map. By providing some arguments to osgshadow (in order 
to change shadow texture unit for example) in some cases I manage to see the 
reflections but I never get the expected result (either the diffuse map 
disappears or the shadows are not correct).

If I just use a diffuse map (or just the reflection map) then some techniques 
work fine but others do not.

I'm attaching the sample model I tried. Can anyone suggest if there is a way to 
get the expected result? Am I supposed to change the shaders' code in some way?

Thanks.
Alessandro

PS: I'm using version OSG v3.0.1.

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Re: [osg-users] iOS: wireframe

[Alessandro Terenzi]

I think it could be useful in many other scenarios, regarding the
current one, at last, requirements changed so I had not to use
wireframe anymore.

If you don't mind it would be great to have the chance to try it.

By the way, is your implementation intended for GLES?

Thanks.
Alessandro

On Fri, Sep 2, 2011 at 9:48 PM, Jeremy Moles jer...@emperorlinux.com wrote:
 On Fri, 2011-09-02 at 18:11 +0200, Alessandro Terenzi wrote:
 Ok and thanks for your help.

 I think I might finish my own personal solid+wireframe GLSL example here
 in a few minutes. Would this be of use to you? (It is derived from this
 example:

 http://www2.imm.dtu.dk/~jab/Wireframe/



 Cheers.
 Alessandro

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[osg-users] iOS: wireframe

[Alessandro Terenzi]

Hi,
I'd like to set the visualization mode to wireframe on iOS, I use these 
instructions:


Code:
osg::ref_ptrosg::StateSet ss = myModelNode-getOrCreateStateSet();
osg::ref_ptrosg::PolygonMode pm;
pm = new osg::PolygonMode(osg::PolygonMode::FRONT_AND_BACK, 
osg::PolygonMode::LINE);
ss-setAttributeAndModes(pm.get(), osg::StateAttribute::ON | 
osg::StateAttribute::OVERRIDE);




but when the app is running and 'myModelNode' is shown, I keep getting this 
warning:

...
Warning: PolygonMode::apply(State) - not supported.
...

and, of course, the model is drawn as if it is NOT in wireframe.

Am I doing something wrong? Is really PolygonMode not supported on iOS? If so, 
how can I change to wireframe mode?

Thanks for your help.
Alessandro

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Re: [osg-users] iOS: wireframe

[Alessandro Terenzi]

Ok and thanks for your help.

Cheers.
Alessandro

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Re: [osg-users] [osgPlugins] FBX: skinned mesh messed up

[Alessandro Terenzi]

Hi Michael,
do not apologize for the late answer, as you can see my own reply is
quite late too :)

Talking about the issue, frankly speaking I cannot answer your
questions, the example I sent comes from simplifying some more complex
models that were prepared by character animators, maybe merging
skeletons into one would work.

Cheers.
Alessandro

PS: good luck with your new job :)

On Mon, Aug 15, 2011 at 3:31 PM, Michael Platings mplati...@gmail.com wrote:
 Hi Alessandro, thanks for the example.
 osgAnimation only allows one skeleton per RigGeometry, and the FBX importer
 assumes that no more than one skeleton will be attached to a mesh, hence the
 messed up results.
 Can you explain why multiple skeletons are attached? If the importer merged
 the skeletons into one would that be OK?

 Apologies for the delayed response btw, I've switched jobs so I don't have
 much time to spend on this any more but I'll still try to help occasionally.
 Cheers
 -Michael

 On 17 July 2011 11:31, Alessandro Terenzi a.tere...@gmail.com wrote:

 Hi
 I finally managed to make a simple model that shows an issue I usually
 experience with skinned characters, ie the mesh is messed up when imported
 in OSG.

 I'm attaching a very simple FBX model: 1 mesh, 2 bones systems and a dummy
 object used to control one of the bones systems, no animations at all.

 I created the model in 3dsMax and noticed that the problem appears if
 there are 2 bones systems (4 bones) attached to the same mesh and one system
 is also linked to a dummy object (see the example I'm attaching) - if there
 is just one system (2 bones) and it is linked to a dummy then the problem
 does not appear.

 QuickTime displays the mesh correctly while osgviewer does not (OSG v3.0.0
 - FBX 2012 and 2011).

 Please (Michael P. or anyone with expertise in osgAnimation) can you have
 a look at the model and let me know if I can provide more examples or help
 to solve the issue?

 Thanks.
 Alessandro

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[osg-users] Shadows on invisible objects

[Alessandro Terenzi]

Hi,
I want to make an object invisible but, nonetheless, I also want it to receive 
shadows, any suggestion?

By the way, I'm using the ShadowMap technique to implement shadows.

Thanks.
Alessandro

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Re: [osg-users] Shadows on invisible objects

[Alessandro Terenzi]

Paul Martz wrote:
 
 When I use depth map shadows, I use a fragment shader to sample the depth 
 texture. If I wanted to see only the shadow areas but not the lit areas, I'd 
 just add the appropriate conditional call to discard.
 


Thanks Paul, your suggestion is very helpful, anyway I wonder if there exists 
also a way to achieve the same result without relying on shaders...for example, 
in the past I used the ColorMask to create an 'invisible' object that was able 
to hide other objects (its shape and volume was reveiled if other objects moved 
behind it, even though it was not visible in the scene). You can also pick such 
kind of invisible objects, so, maybe, something similar can be done also with 
shadows.

Basically I'm looking for a way to reveil the shape/volume of an invisible 
object by means of shadows casted onto it, I know that this may make no sense 
from a physical point of view, but we're in the CG world where only imagination 
is the limit, aren't we?

Cheers.
Alessandro

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Re: [osg-users] using ClipNode to cut a model in two, then cap the open side

[Alessandro Terenzi]

I'm trying the Javier's CappingEffect example and it seems to work fine...but 
only when I look at the scene from one side...if I move the camera to the 
opposite side I still see the cappings that are drawn over my geometry (they 
should be hidden instead)...please refer to the attachments to see what I mean.

In order to use the CappingEffect I modified osgviewer in this way:


Code:
osg::ClipNode* clipnode = new osg::ClipNode;
osg::ClipPlane* clipplane = new osg::ClipPlane(); 
clipplane-setClipPlane(0, 1, 0, 1); 

clipnode-addClipPlane(clipplane);
clipnode-addChild(loadedModel.get());

CappingEffect* capping_effect = new CappingEffect;
capping_effect-addChild(clipnode);

scene-addChild(capping_effect);
viewer.setSceneData(scene);




How can I solve the issue?
Thanks.
Alessandro

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Re: [osg-users] Video textures on iOS (and audio)

[Alessandro Terenzi]

Hi Tom,
I've seen some examples related to video textures coming from the camera but it 
looks like that the approach for video coming from files is quite different: 
basically you have to create asset readers, get the tracks (video or audio or 
both) and start reading frames (or audio samples)...unfortunately there is 
quite a lot to do in order to synch audio and video and to update the video 
texture at a given framerate.

Anyway, Stephan's suggestion was quite useful from this point of view, my only 
concern is how to correctly send the texture data from the asset readers to 
OSG...I still need to think about the most effective way to do this and, most 
of all, to do it in a thread-safe manner.

Cheers.
Alessandro

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[osg-users] [osgPlugins] FBX: skinned mesh messed up

[Alessandro Terenzi]

Hi
I finally managed to make a simple model that shows an issue I usually 
experience with skinned characters, ie the mesh is messed up when imported in 
OSG.

I'm attaching a very simple FBX model: 1 mesh, 2 bones systems and a dummy 
object used to control one of the bones systems, no animations at all. 

I created the model in 3dsMax and noticed that the problem appears if there are 
2 bones systems (4 bones) attached to the same mesh and one system is also 
linked to a dummy object (see the example I'm attaching) - if there is just one 
system (2 bones) and it is linked to a dummy then the problem does not appear.

QuickTime displays the mesh correctly while osgviewer does not (OSG v3.0.0 - 
FBX 2012 and 2011).
 
Please (Michael P. or anyone with expertise in osgAnimation) can you have a 
look at the model and let me know if I can provide more examples or help to 
solve the issue?

Thanks.
Alessandro

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Re: [osg-users] Video textures on iOS (and audio)

[Alessandro Terenzi]

Yes I have, and actually I found something (both in WWDC2010 and WWDC2011) but 
everything I found was mostly related to getting the video camera frames to 
OpenGL not video/movie files and it looks like that the approach for video 
files is quite different if compared to the camera approach.

So far I've thought about some ways to do what I'm after, but looking at the 
Apple developers forum everyone that tried those techniques was not really 
satisfied...so I'm still looking for the best approach...

Did you refer to a specific resource available in WWDC 2011 videos? Maybe I 
missed it... 

Thanks.
Alessandro

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[osg-users] Video textures on iOS (and audio)

[Alessandro Terenzi]

Hi,
I wonder if playing a video texture (from a .MOV file) with OSG for iOS works 
the same way as OSG for Mac OS X...I mean, is it enough to build the osgdb_qt 
library and statically link to it? Would this work for iOS too? 

What about any audio eventually embedded in the .MOV?

Thanks.
Alessandro

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Re: [osg-users] Video textures on iOS (and audio)

[Alessandro Terenzi]

Thanks Stephan,
I'll study the possibilities more in depth.

Cheers.
Alessandro

On Thu, Jul 14, 2011 at 10:07 AM, Stephan Huber ratzf...@digitalmind.de wrote:
 Hi,

 Am 14.07.11 09:14, schrieb Alessandro Terenzi:
 I wonder if playing a video texture (from a .MOV file) with OSG for iOS 
 works the same way as OSG for Mac OS X...I mean, is it enough to build the 
 osgdb_qt library and statically link to it? Would this work for iOS too?

 Unfortunatley you can't use the quicktime-plugin for ios. In fact it's
 difficult to play a movie into an open gl texture, the info on the net
 is relatively spare.


 OpenFrameworks has an ios video player, perhaps it's a start for porting
 it to osg:

 https://github.com/openframeworks/openFrameworks/blob/master/libs/openFrameworks/video/ofiPhoneVideoPlayer.mm

 On the other side it's pretty easy to add a movie player to an UIView.

 cheers,
 Stephan
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[osg-users] StatsHandler hang

[Alessandro Terenzi]

Hi,
I wonder if anyone noticed this behavior: if you add a StatsHandler and, BEFORE 
pressing the 's' key you press 'SHIFT+s' then the applications seems to freeze 
(you cannot interact with the viewer anymore and you have to kill the app) but 
nonetheless it starts printing 

...
Stats Viewer FrameNumber 21379
Stats Camera FrameNumber 21379

Stats Viewer FrameNumber 21380
Stats Camera FrameNumber 21380
...

to the console. 

On the other hand, if at the beginning you press 's' and THEN press 'SHIFT+s' 
the problem does not occur.

I'm using a 32bit build on Windows 7 64bit and OSG version is 3.0.0 rc1.

Cheers.
Alessandro

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Re: [osg-users] RTT issue when switching from fullscreen to windowed mode

[Alessandro Terenzi]

I kept playing with RTT and I noticed an issue:

If you do not set a single threading model then if you go from fullscreen to 
windowed mode and back to fullscreen, the system hangs (I get a black screen 
and I can only reboot) - you may have to press 'f' several times before the 
hang occurs...

If you instead choose to use a single threading model it looks like that 
everything goes fine.

I've read about something like this in other posts: someone had the same issue 
in a multi-screen setup, but this is not my case, someone else noticed that the 
osgdistortion example (that employs RTT) also sets a single threading model.

To reproduce the problem I guess that you can just use the code posted above.

In order to solve the issue: am I supposed to lock something when toggling 
fullscreen/windowed mode? Should I try by changing threading model on the fly 
before switching fullscreen/windowed mode? In this case, where is it safe to do 
it?

I'm on Windows 7 64bit and OSG version is 3.0.0 rc1 (32bit).

Cheers.
Alessandro

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Re: [osg-users] RTT issue when switching from fullscreen to windowed mode

[Alessandro Terenzi]

Hi,
I just tried the prerender example by issuing the --fb parameter and I get the 
same problem as described above...so I guess that this is the expected 
behaviour even though it is not the effect one could expect.

So, is there something that must be done in order to use RTT when a window 
resizing occurs?

Thanks.
Alessandro

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Re: [osg-users] RTT issue when switching from fullscreen to windowed mode

[Alessandro Terenzi]

Thanks JP,
after having searched the archives, I tried to create a cull callback and in 
its  operator() method I tried different things among adding these lines:


Code:

cv-getCurrentRenderBin()-getStage()-setCameraRequiresSetUp(true); 
cv-getCurrentRenderBin()-getStage()-runCameraSetUp(cv-getRenderInfo());




But this seems to be not enough. 

I also tried to detach the COLOR_BUFFER and attach it again along with the RTT 
texture, but still same issue. 

I do not understand what happens behind the scenes, so I still cannot think 
about what else to try...any hint about the workaround you were talking about? 
:)

Cheers.
Alessandro

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Re: [osg-users] RTT issue when switching from fullscreen to windowed mode

[Alessandro Terenzi]

Well, no, I was not re-creating the texture, so if I understood it correctly: 
if I want to use the FRAME_BUFFER target I also need to re-create the texture 
every time a resize occurs and also call runCameraSetup as well, right?

Actually the decision not to use FBOs is not final, I'm just trying the 
possibilities...to this regard I wonder which target, among FRAME_BUFFER, FBO 
and pbuffer, is the one that is most likely going to work on, let's say, 3 or 5 
years old computers?

Thank you again.

Cheers.
Alessandro

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[osg-users] When is it safe to resize an osg::Camera viewport?

[Alessandro Terenzi]

Hi,
I have an osg:Camera (beyond the viewer's default camera) and I need to resize 
the viewport of that camera when a RESIZE event occurs (actually when the user 
resizes the app window).

So I thought to handle the viewer's RESIZE event by calling the setViewport(.) 
method on my custom camera because my custom osg::Camera viewport is not 
resized automatically.

I wonder if it is safe to call setViewport(.) in the handle() method of an 
event handler or if I'm supposed to change camera's properties (like the 
viewport) somewhere else (for example in an UpdateCallback or in a 
CullCallback...).

I'm asking this because I often experience a system crash when toggling 
fullscreen on/off...but I'm not sure that this is related to the way I call 
setViewport(.).

One more question: what are 'slave' cameras used for? Are them supposed to be 
used only if they need to follow a parent's transform?

Thanks.
Alessandro

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[osg-users] RTT issue when switching from fullscreen to windowed mode

[Alessandro Terenzi]

I started playing with RTT cameras and, having looked at some OSG examples, I 
tried my own code but when I switch from fullscreen to windowed mode the 
rendered texture doesn't appear as expected: it seems not to cover the whole 
quad as it does while in fullscreen, only a part of it is updated and as you 
stretch the window the rendered texture is stretched too (refer to attached 
images).

Here's my code:


Code:

int main( int argc, char **argv )
{
osg::ArgumentParser arguments(argc,argv);
osgViewer::Viewer viewer(arguments);

// add stats and window size handlers...
viewer.addEventHandler( new osgViewer::StatsHandler() );
viewer.addEventHandler( new osgViewer::WindowSizeHandler() );

int screenWidth = 1366;
int screenHeight = 768;

// create the texture to render to...
osg::ref_ptrosg::Texture2D texture_RTT = new osg::Texture2D;
texture_RTT-setTextureSize(screenWidth, screenHeight);
texture_RTT-setInternalFormat(GL_RGBA);
texture_RTT-setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR);
texture_RTT-setFilter(osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR);
texture_RTT-setResizeNonPowerOfTwoHint(false);

// create the quad...
osg::ref_ptrosg::Geometry quad_RTT = osg::createTexturedQuadGeometry(
   osg::Vec3(0.0, 0.0, 0.0),
   osg::Vec3(screenWidth, 0.0, 0.0),
   osg::Vec3(0.0, screenHeight, 
0.0));

quad_RTT-setDataVariance( osg::Object::DYNAMIC );

osg::ref_ptrosg::Geode quad_geode_RTT = new osg::Geode;
quad_geode_RTT-addDrawable(quad_RTT.get());
quad_geode_RTT-setDataVariance( osg::Object::DYNAMIC );

osg::StateSet *quadState = quad_geode_RTT-getOrCreateStateSet();
quadState-setTextureAttributeAndModes(0, texture_RTT.get(), 
osg::StateAttribute::ON);
quadState-setMode( GL_LIGHTING, osg::StateAttribute::OFF | 
osg::StateAttribute::PROTECTED );

// create the camera...
osg::ref_ptrosg::Camera camera_RTT = new osg::Camera;

#ifdef USE_IMAGE
osg::ref_ptrosg::Image image_RTT = new osg::Image;
image_RTT-allocateImage(screenWidth, screenHeight, 1, GL_RGBA, 
GL_UNSIGNED_BYTE);
camera_RTT-attach(osg::Camera::COLOR_BUFFER, image_RTT.get());
texture_RTT-setImage(0, image_RTT.get());
#else
camera_RTT-attach(osg::Camera::COLOR_BUFFER, texture_RTT.get());
#endif
 

//camera_RTT-setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT, 
osg::Camera::FRAME_BUFFER);
camera_RTT-setRenderTargetImplementation(osg::Camera::FRAME_BUFFER);
camera_RTT-setRenderOrder(osg::Camera::PRE_RENDER);

camera_RTT-setReferenceFrame( osg::Camera::ABSOLUTE_RF );
camera_RTT-setClearColor( osg::Vec4( 0., 0., 1., 1. ) );
camera_RTT-setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

// add whatever children you want drawn to the texture
osg::ref_ptr osg::Node  node = osgDB::readNodeFile(cow.osg);
if(node.valid())
{
const osg::BoundingSphere bs = node-getBound();
float znear = 1.0f*bs.radius();
float zfar  = 3.0f*bs.radius();
float proj_top   = 0.25f*znear;
float proj_right = 0.5f*znear;
znear *= 0.9f;
zfar *= 1.1f;


camera_RTT-setProjectionMatrixAsFrustum(-proj_right,proj_right,-proj_top,proj_top,znear,zfar);

camera_RTT-setViewMatrixAsLookAt(bs.center()-osg::Vec3(0.0f,2.0f,0.0f)*bs.radius(),bs.center(),osg::Vec3(0.0f,0.0f,1.0f));

camera_RTT-addChild(node.get());
}
else
osg::notify(osg::FATAL)model not loadedstd::endl;

// add camera and quad to root...
osg::Group* rootNode = new osg::Group();
rootNode-addChild(camera_RTT.get());
rootNode-addChild(quad_geode_RTT.get());

// add model to the viewer.
viewer.setSceneData( rootNode );

return viewer.run();
}




Sorry if the code doesn't visualize fine (I'm attaching a .cpp FYC).

The situation does not change if I use FRAME_BUFFER_OBJECT target instead of 
FRAME_BUFFER. On the other hand, it changes if I use an osg::Image (by defining 
USE_IMAGE in the above code, but performances are not so good (9 fps) as when 
using the texture).

What am I missing? 

Cheers.
Alessandro

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Attachments: 
http://forum.openscenegraph.org//files/rtt_windowed_using_image_712.png
http://forum.openscenegraph.org//files/rtt_windowed_919.png
http://forum.openscenegraph.org//files/rtt_fullscreen_175.png
http://forum.openscenegraph.org//files/test_rtt_603.cpp


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Re: [osg-users] OSGExp, movie textures and OSG file formats

[Alessandro Terenzi]

Hi,
if I'm not wrong it should be enough to just set Image to DYNAMIC (not the 
Texture).

Currently I'm on a travel, so I cannot try your suggestions right now, but I 
asked my teammates to do it and I'll let you know as soon as I'll have some 
news.

It would be great if both ive and osgb could embed also movies.

Thanks.
Alessandro

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Re: [osg-users] OSGExp, movie textures and OSG file formats

[Alessandro Terenzi]

Hi,
thanks everybody for your answers...

to Farshid: when I exported to .ive or .osgb I checked 'Embed image data'...but 
the ive/osgb file size doesn't looks correct (I used a 16MB video and the size 
of the ive/osgb was something like 300KB).

Cheers,
Alessandro

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Re: [osg-users] [osgPlugins] FBX plugin: crash if using AVI texture

[Alessandro Terenzi]

Finally, I could try with the debug build and here's the call stack when the 
crash occurs:

   osg78-osgd.dll!osg::ObserverSet::signalObjectDeleted(void * ptr)  Line 
 79 + 0x1b bytes  C++
osg78-osgd.dll!osg::Referenced::signalObserversAndDelete(bool 
signalDelete, bool doDelete)  Line 318C++
osg78-osgd.dll!osg::Referenced::unref()  Line 200   C++
osg78-osgDBd.dll!osg::ref_ptrosg::Object::~ref_ptrosg::Object()  
Line 35 + 0x24 bytes   C++

osg78-osgDBd.dll!std::_Pair_baseosg::ref_ptrosg::Object,double::~_Pair_baseosg::ref_ptrosg::Object,double()
  + 0x16 bytes   C++

osg78-osgDBd.dll!std::pairosg::ref_ptrosg::Object,double::~pairosg::ref_ptrosg::Object,double()
  + 0x16 bytes   C++

osg78-osgDBd.dll!std::_Pair_basestd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double 
::~_Pair_basestd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double ()  + 0x3f bytes   
C++

osg78-osgDBd.dll!std::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double 
::~pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar  
const ,std::pairosg::ref_ptrosg::Object,double ()  + 0x16 bytes   C++

osg78-osgDBd.dll!std::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double ::`scalar deleting 
destructor'()  + 0x16 bytes  C++

osg78-osgDBd.dll!std::_Destroystd::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double  
(std::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar 
 const ,std::pairosg::ref_ptrosg::Object,double  * _Ptr)  Line 64   
C++

osg78-osgDBd.dll!std::allocatorstd::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double  
::destroy(std::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double  * _Ptr)  Line 213 + 0x9 
bytesC++

osg78-osgDBd.dll!std::_Dest_valstd::allocatorstd::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double  
,std::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar 
 const ,std::pairosg::ref_ptrosg::Object,double  
(std::allocatorstd::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double_Alval, 
std::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar  
const ,std::pairosg::ref_ptrosg::Object,double  * _Pdest)  Line 288   
C++

osg78-osgDBd.dll!std::_Treestd::_Tmap_traitsstd::basic_stringchar,std::char_traitschar,std::allocatorchar
 
,std::pairosg::ref_ptrosg::Object,double,std::lessstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  
,std::allocatorstd::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double  ,0 
::_Erase(std::_Tree_nodstd::_Tmap_traitsstd::basic_stringchar,std::char_traitschar,std::allocatorchar
 
,std::pairosg::ref_ptrosg::Object,double,std::lessstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  
,std::allocatorstd::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double  ,0 ::_Node * 
_Rootnode)  Line 1617 + 0x22 bytes  C++

osg78-osgDBd.dll!std::_Treestd::_Tmap_traitsstd::basic_stringchar,std::char_traitschar,std::allocatorchar
 
,std::pairosg::ref_ptrosg::Object,double,std::lessstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  
,std::allocatorstd::pairstd::basic_stringchar,std::char_traitschar,std::allocatorchar
  const ,std::pairosg::ref_ptrosg::Object,double  ,0 ::clear()  Line 
1416   C++
osg78-osgDBd.dll!osgDB::Registry::clearObjectCache()  Line 1601 C++
osg78-osgDBd.dll!osgDB::Registry::destruct()  Line 431  C++
osg78-osgDBd.dll!osgDB::Registry::~Registry()  Line 410 C++
osg78-osgDBd.dll!osgDB::Registry::`vector deleting destructor'()  + 
0x57 bytes  C++
osg78-osgd.dll!osg::Referenced::signalObserversAndDelete(bool 
signalDelete, bool doDelete)  Line 323 + 0x23 bytes   C++
osg78-osgd.dll!osg::Referenced::unref()  Line 200   C++

osg78-osgDBd.dll!osg::ref_ptrosgDB::Registry::~ref_ptrosgDB::Registry()  
Line 35 + 0x24 bytes   C++
osg78-osgDBd.dll!`osgDB::Registry::instance'::`2'::`dynamic atexit 
destructor for 's_registry''()  + 0xd bytes  C++
osg78-osgDBd.dll!_CRT_INIT(void * hDllHandle, unsigned long dwReason, 
void * lpreserved)  Line 415  C
osg78-osgDBd.dll!__DllMainCRTStartup(void * hDllHandle, unsigned long 
dwReason, void * lpreserved)  Line 526 + 0x11 bytes   C

[osg-users] OSGExp, movie textures and OSG file formats

[Alessandro Terenzi]

I wonder if anybody else experienced my same problem: I wrote a visitor that 
looks for movie textures in order to play them, the input files come from 
3dsMax via OSGExp v1.0.0, but I made it work only if I export to .osg, if I 
export to either .ive or .osgb the visitor fails to dynamic_cast any found 
Image to ImageStream so I cannot play those movie textures. I also noticed that 
if I export to .osgt then the Image's DataVariance is set to STATIC, even 
though the texture file type is avi, mov or others (so I have to change it to 
DYNAMIC otherwise they won't play)

Does anyone have the same issues (especially those with the binary formats)? Is 
all this related to OSGExp only or am I supposed to look for movie texture in a 
different way than the way I use with .osg files?

Thanks.
Alessandro

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Re: [osg-users] Mac OS X windowing system related issue (maybe)

[Alessandro Terenzi]

Thank you Stephan,
I've tried by executing getWindowingSystemInterface() before opening
the settings window but unfortunately it didn't help.

On the other hand, I tried to call the viewer's realize() method
BEFORE opening the settings window and now it has focus, can be moved
and it works as expected...BUT, when the settings window is shown, I
also see the viewer's window (fullscreen and filled with white color)
just behind the settings window...when I close the latter, the viewer
shows my scene normally. This is close to the expected behavior except
for the viewer's window 'already' showing behind the settings window
(it should be shown only after the user closes the settings windows).

I guess that the camera settings window is created as a child of the
OSG application window, so it behaves normally only when the
application window's creation has completed...don't know.

Maybe I should perform only a part of what happens in the realize() method?

Regards.
Alessandro



On Tue, Jun 21, 2011 at 11:40 PM, Stephan Huber ratzf...@digitalmind.de wrote:
 Hi Alessandro,

 Am 21.06.11 22:35, schrieb Alessandro Terenzi:
 If this can help, when I built OSG I chose 'Carbon' as windowing system, I 
 built OSG as frameworks and I'm building my OSG application as a console 
 application. If I build my application as an app bundle (instead of a

 try creating the WindowSystemInterface via

 osg::GraphicsContext::getWindowingSystemInterface()

 before opening the settings-dialog. the WindowingSystemInterface does
 some fancy things, so that windows opened by a console-app work correctly.

 Perhaps that helps.

 cheers,
 Stephan
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Re: [osg-users] Mac OS X windowing system related issue (maybe)

[Alessandro Terenzi]

Thank you Stephan,
I've tried by executing getWindowingSystemInterface() before opening
the settings window but unfortunately it didn't help.

On the other hand, I tried to call the viewer's realize() method
BEFORE opening the settings window and now it has focus, can be moved
and it works as expected...BUT, when the settings window is shown, I
also see the viewer's window (fullscreen and filled with white color)
just behind the settings window...when I close the latter, the viewer
shows my scene normally. This is close to the expected behavior except
for the viewer's window 'already' showing behind the settings window
(it should be shown only after the user closes the settings windows).

I guess that the camera settings window is created as a child of the
OSG application window, so it behaves normally only when the
application window's creation has completed...don't know.

Maybe I should perform only a part of what happens in the realize() method?

Regards.
Alessandro

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Re: [osg-users] Mac OS X windowing system related issue (maybe)

[Alessandro Terenzi]

I finally managed to solve the issue: I called setUpViewAcrossAllScreens() 
before opening the settings window.

What does setUpViewAcrossAllScreens do?

Cheers.
Alessandro

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[osg-users] [osgPlugins] FBX plugin: crash if using AVI texture

[Alessandro Terenzi]

Hi,
I'm trying to see a simple quad with a video (AVI) texture applied. The video 
is played correctly by osgmovie but if I use osgviewer to open the FBX model 
(that uses the AVI) when execution is over osgviewer crashes.

I'm using OSG 3.0.0 rc1 and the FBX was created from 3dsMax using the FBX SDK 
2012.

I'm attaching the FBX and OSG (if you want to try them you have to just replace 
the paths for the video file). I also tried with a .osg and it doens't crashes.

Cheers,
Alessandro

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Re: [osg-users] [osgPlugins] FBX plugin: crash if using AVI texture

[Alessandro Terenzi]

Hi Robert,
unfortunately I will not be able to try it before friday, anyway the
video plugin that I use is QuickTime (the OS is Windows 7 x64, OSG is
built for 32 bit and we tried with a couple of different AVIs on two
PCs).

Hope this helps a little.
Alessandro

On Wednesday, June 22, 2011, Robert Osfield robert.osfi...@gmail.com wrote:
 HI Alessandro,

 Could run a debug build and get a stack trace from the crash and then
 post this stack trace, it should give us a bit more of ideal of what
 might be at fault.

 Also what movie plugin are you attempting to use to play the movie?

 Robert.

 On Wed, Jun 22, 2011 at 6:32 PM, Alessandro Terenzi a.tere...@gmail.com 
 wrote:
 Hi,
 I'm trying to see a simple quad with a video (AVI) texture applied. The 
 video is played correctly by osgmovie but if I use osgviewer to open the FBX 
 model (that uses the AVI) when execution is over osgviewer crashes.

 I'm using OSG 3.0.0 rc1 and the FBX was created from 3dsMax using the FBX 
 SDK 2012.

 I'm attaching the FBX and OSG (if you want to try them you have to just 
 replace the paths for the video file). I also tried with a .osg and it 
 doens't crashes.

 Cheers,
 Alessandro

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Re: [osg-users] [osgPlugins] FBX plugin: crash if using AVI texture

[Alessandro Terenzi]

Thank you Robert for your answers, I'll try the ffmpeg plugins as soon
as I'll be back to work, only one note: I've already tried the
directshow plugin but, as you can see from a couple of mails of mine,
without success...so far I could not find a solution for using that
plugin and this is the reason I'm stll using QuickTime even on
Windows.

Cheers.
Alessandro

On Wednesday, June 22, 2011, Robert Osfield robert.osfi...@gmail.com wrote:
 HI Alessandro,

 On Wed, Jun 22, 2011 at 8:00 PM, Alessandro Terenzi a.tere...@gmail.com 
 wrote:
 unfortunately I will not be able to try it before friday, anyway the
 video plugin that I use is QuickTime (the OS is Windows 7 x64, OSG is
 built for 32 bit and we tried with a couple of different AVIs on two
 PCs).

 Friday will be too later for 3.0.0.  Where the problem might lie I
 can't say, but it all works at
 least with the ffmpeg plugin under Linux, so one might consider the
 Quicktime plugin as being
 a potential cause of problems, but it just as easily code be a problem
 elsewhere.

 Quicktime used to be the only video solution under Windows but now we
 have the ffmpeg and
 the directshow plugins so if it does turn out to be the problem then
 you can always look into
 trying out these other plugins.

 Robert.
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[osg-users] Mac OS X windowing system related issue (maybe)

[Alessandro Terenzi]

Hi,
it is not easy to explain the nature of the issue I'm experiencing anyway
I'll try.

I have an OSG application (on Mac OS X) that, on startup (no viewer realized
and not in the application loop yet), opens a video device in order to
display a webcam stream inside the application itself (the interface to the
video device is provided by a 3rd party lib)...everything is fine unless I
ask to display the camera settings window before actually starting the video
stream: in that case the correct behavior is that the OSG application waits
until the user makes his choices and close the settings window, when the
window is closed the OSG application continues setting up the scene and
finally enters the application loop and shows the viewer window.

When I used OSG 2.9.6 everything worked as described in both cases (with and
without showing the settings window), but when I switched to OSG 2.9.14,
2.9.16 or 3.0.0 if I choose to show the camera settings window then I cannot
move or grab focus on that window in any way (even though I still can click
its controls/buttons - for instance if I move another window on top of that
settings window, then I cannot bring to the foreground it anymore).

Unfortunately I cannot have too much control and information about that
camera settings window, I can just choose to show it or not when I open the
video stream..that window is not managed by my code and, as far as I know,
it is related to QUICKTIME in some way, I do not know much more and cannot
provide further details about this. Since my OSG application code didn't
change in any way and since it worked with OSG 2.9.6, I wonder if something
changed from the windowing system point of view on Mac OS X (I have no
problems on Windows by the way). By the way in the console I also get this
message:

GraphicsWindowCarbon::grabFocusIfPointerInWindow: not implemented

Don't know if this may be related to my issue...

If this can help, when I built OSG I chose 'Carbon' as windowing system, I
built OSG as frameworks and I'm building my OSG application as a console
application. If I build my application as an app bundle (instead of as a
console application) then it works even if I choose to show the settings
window.

I know that there is very little information about this issue, but I wonder
if any Mac OS X expert has a suggestion or can tell me what I should look
for in order to overcome this problem?

Thanks.
Alessandro
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[osg-users] Mac OS X windowing system related issue (maybe)

[Alessandro Terenzi]

Hi,
first of all I apologize if this is a duplicate post, I first tried to send a 
mail to the mailing list, but then I could not find it in this forum, so I'm 
trying again here by creating a new topic.

It is not easy to explain the nature of the issue I'm experiencing anyway I'll 
try.

I have an OSG application (on Mac OS X) that, on startup (no viewer realized 
and not in the application loop yet), opens a video device in order to display 
a webcam stream inside the application itself (the interface to the video 
device is provided by a 3rd party lib)...everything is fine unless I ask to 
display the camera settings window before actually starting the video stream: 
in that case the correct behavior is that the OSG application waits until the 
user makes his choices and close the settings window, when the window is closed 
the OSG application continues setting up the scene and finally enters the 
application loop and shows the viewer window. 

When I used OSG 2.9.6 everything worked as described in both cases (with and 
without showing the settings window), but when I switched to OSG 2.9.14, 2.9.16 
or 3.0.0 if I choose to show the camera settings window then I cannot move or 
grab focus on that window in any way (even though I still can click its 
controls/buttons - for instance if I move another window on top of that 
settings window, then I cannot bring to the foreground it anymore).

Unfortunately I cannot have too much control and information about that camera 
settings window, I can just choose to show it or not when I open the video 
stream..that window is not managed by my code and, as far as I know, it is 
related to QUICKTIME in some way, I do not know much more and cannot provide 
further details about this. Since my OSG application code didn't change in any 
way and since it worked with OSG 2.9.6, I wonder if something changed from the 
windowing system point of view on Mac OS X (I have no problems on Windows by 
the way). By the way in the console I also get this message: 

GraphicsWindowCarbon::grabFocusIfPointerInWindow: not implemented

Don't know if this may be related to my issue...

If this can help, when I built OSG I chose 'Carbon' as windowing system, I 
built OSG as frameworks and I'm building my OSG application as a console 
application. If I build my application as an app bundle (instead of as a 
console application) then it works even if I choose to show the settings window.

I know that there is very little information about this issue, but I wonder if 
any Mac OS X expert has a suggestion or can tell me what I should look for in 
order to overcome this problem?

Thanks.
Alessandro

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[osg-users] Error writing particles in .IVE but not in .OSG

[Alessandro Terenzi]

I'm experiencing an issue with particles: if I export from 3dsMax+OSGExp to
.osg then particles are working, but if I export to.ive I get some errors
and a message prompts me that the plugin to write the ive file cannot be
found.

Actually any model without particles is exported fine to .ive, so I guess
that the error message refers to some other DLL. I assured that:

osg75-osgParticle.dll
osgdb_deprecated_osgparticle.dll
osgdb_serializers_osgparticle.dll

are where they are supposed to be. Anyway if I export to .osg no problem at
all.

I also tried to first export to .osg and then to use osgconv to create the
.ive but I get the following messages:

Unknown node in Group::write(), className()=ModularEmitter
Unknown node in Group::write(), className()=ParticleSystemUpdater
Error writing IVE image: Unknown drawable in
DataOutputStream::writeDrawable()
Warning: Write to C:\Users\Alessandro\Documents\3dsMax\export\test.ive not
supported.

I'm on Windows 7 x64, OSG 2.9.14 and OSGExp 0.9.9 (built against OSG 2.9.14,
both 32 and 64 bit) - tried with Max 2010, 2011 and 2012.

What am I missing?
Thanks.
Alessandro
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Re: [osg-users] Error writing particles in .IVE but not in .OSG

[Alessandro Terenzi]

Thanks Robert,
I'll go with version 3.0.0 rc1 and definitely use the .osgb format.

Regards.
Alessandro

On Mon, Jun 20, 2011 at 1:36 PM, Robert Osfield robert.osfi...@gmail.comwrote:

 Hi Alessandro,

 The .ive format doesn't support the osgParticle NodeKit.  The .ive
 format is actually pretty limited as it's not extensible other than by
 hacking the plugin directly.

 You are now much better off using the .osgb native binary file format,
 it entirely replaces the functionality of .ive and is extensible and
 handles fowards/backwards comtability far better thanks to being based
 on the new serializers.  Thanks to the extensibility osgParticle and
 the other NodeKits are supported by the new .osgb format.

 I would recommend moving to svn/trunk or OSG-3.0 branch or
 OSG-3.0.0-rc1 as they all offer refinements to the new serailizers.
 When you upgrade to any of these versions you won't get any changes to
 the .ive plugin - this is deperecated and will never support
 osgParticle.

 Robert.

 On Mon, Jun 20, 2011 at 11:38 AM, Alessandro Terenzi
 a.tere...@gmail.com wrote:
  I'm experiencing an issue with particles: if I export from 3dsMax+OSGExp
 to
  .osg then particles are working, but if I export to.ive I get some errors
  and a message prompts me that the plugin to write the ive file cannot be
  found.
  Actually any model without particles is exported fine to .ive, so I guess
  that the error message refers to some other DLL. I assured that:
  osg75-osgParticle.dll
  osgdb_deprecated_osgparticle.dll
  osgdb_serializers_osgparticle.dll
  are where they are supposed to be. Anyway if I export to .osg no problem
 at
  all.
  I also tried to first export to .osg and then to use osgconv to create
 the
  .ive but I get the following messages:
  Unknown node in Group::write(), className()=ModularEmitter
  Unknown node in Group::write(), className()=ParticleSystemUpdater
  Error writing IVE image: Unknown drawable in
  DataOutputStream::writeDrawable()
  Warning: Write to C:\Users\Alessandro\Documents\3dsMax\export\test.ive
 not
  supported.
  I'm on Windows 7 x64, OSG 2.9.14 and OSGExp 0.9.9 (built against OSG
 2.9.14,
  both 32 and 64 bit) - tried with Max 2010, 2011 and 2012.
  What am I missing?
  Thanks.
  Alessandro
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Re: [osg-users] OSG based aplication nominated in CG Architect Awards

[Alessandro Terenzi]

Thanks Alberto for spending time to answer my questions, your answers and
your work are really inspiring.

Looking forward to seeing other works like that.
Alessandro

On Fri, Jun 10, 2011 at 7:59 PM, Alberto Jaspe aja...@gmail.com wrote:

 Hi,

 Thanks Alsessandro and Ulrich for your feedback :)

 Asking questions...


 1) how do you cap holes when performing dynamic clipping?

 Every poly behind the holes is viewed by its back face. You only have to
 fill any back face with an uniform color in a fragment program.



 2) is global illumination calculated in real-time as well?

 No. It's a precalculated  radiosity solution, with some optimizations in
 the scenegraph and lighting info per vertex.


 3) how did you integrated panoramas in OSG?

 Well, we had two ways doing that. At one hand, we developed our own
 panorama library, that textures any panoramic image in the inside face of a
 sphere, taking care of projections, texture load, movement control, etc.
 This is a good choose if you need to integrate in any way the panorama in
 your 3D scene.
 By the other side and in the last times we had integrated web browsing
 inside our own GI system, via awesomium. So most times it were faster and
 more effective using a page with a flash panorama viewer, like kr-pano.

 Bye and thanks again!
 Alberto.

 --
 *Alberto Jaspe*
 *Computer Graphics RD Guy*

 http://albertojaspe.net


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[osg-users] COLLADA plugin: out of memory error.

[Alessandro Terenzi]

Hi,
I have to load a 75MB Collada model but when I try to open it I get the
following error:

Error: xmlSAX2Characters: huge text node: out of memory

Load failed in COLLADA DOM
Load failed in COLLADA DOM conversion

osgviewer.exe: No data loaded

The model comes from SketchUp and contains no textures, just (a lot of)
geometry data (few meshes with lots of vertices). I tried to open it in a
text editor but the file is so big that I do not know where to look. Does
that error give you a hint on what I should try to look for?

Thanks.
Alessandro
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Re: [osg-users] OSG based aplication nominated in CG Architect Awards

[Alessandro Terenzi]

Hi Alberto,
congratulations for the nominee, your application is really amazing and the
video is worth seeing up to the very end!

I'd like to ask you something, if you don't mind:

1) how do you cap holes when performing dynamic clipping?

2) is global illumination calculated in real-time as well?

3) how did you integrated panoramas in OSG?

Thanks and, again, congrats to you and to everyone else that worked with you
on the project!

Regards.
Alessandro

On Wed, Jun 8, 2011 at 8:48 PM, Alberto Jaspe aja...@gmail.com wrote:

 Hello people!

 Lot of time without writing anything here. Anyway I've been using a lot OSG
 in almost all my projects.

 I just one to tell you that one of them have just been nominated in the CG
 Architect Awards 2011, for Best Real-Time Application, and is completely
 based on OpenSceneGraph. It's called Spatial, volumetric and sectional
 analysis of the Cathedral of Santiago de Compostela.

 http://3dawards.cgarchitect.com/nominees/view/realtime/1099

 So never is late to thank the community, because without you this projects
 are not possible.


 --
 *Alberto Jaspe*
 *Computer Graphics RD Guy*

 http://albertojaspe.net


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[osg-users] Plugins finding/loading issue on Mac OS X (imageio and FBX)

[Alessandro Terenzi]

Hi,
I want to port some apps from OSG 2.9.6 to the latest developer release
(2.9.14)...so I've built OSG's frameworks and osgviewer.app and everything
went fine on Windows, but I'm getting some troubles with plugins loading on
Mac OS X (10.5).

In osgviewer.cpp I added the following line:

osgDB::setLibraryFilePathList(../Plugins);

and I added both the Frameworks and Plugins folders to the osgviewer.app
package. But when I try to load either a DAE with JPG textures or a FBX I
get errors because plugins cannot be found, even though they seems to be
loaded as you can see from the console output:

(when loading a FBX)

...

itr='../Plugins'

FindFileInPath() : trying
/Users/alex/Desktop/osgviewer.app/Contents/Plugins/osgPlugins-2.9.14/osgdb_fbx.so
...

FindFileInPath() : USING
/Users/alex/Desktop/osgviewer.app/Contents/Plugins/osgPlugins-2.9.14/osgdb_fbx.so

Opened DynamicLibrary osgPlugins-2.9.14/osgdb_fbx.so

Warning: Could not find plugin to read objects from file
/Users/alex/Desktop/models/max/dude/dude.fbx.

./osgviewer: No data loaded


(when loading JPGs via IMAGEIO)

   itr='../Plugins'

FindFileInPath() : trying
/Users/alex/Desktop/osgviewer.app/Contents/Plugins/osgPlugins-2.9.14/osgdb_imageio.so
...

FindFileInPath() : USING
/Users/alex/Desktop/osgviewer.app/Contents/Plugins/osgPlugins-2.9.14/osgdb_imageio.so

Opened DynamicLibrary osgPlugins-2.9.14/osgdb_imageio.so

Warning: Could not find plugin to read objects from file
/Users/alex/Desktop/models/dae/test/untitled/texture0.jpg.


Why do I get opposite messages? (the first that says that the plugin has
been opened and the second that it has not been found)

I set the notify level to DEBUG_INFO and DEBUG_FP, by cannot get more
details about the error.


If I try to print the plugins search paths (by means of g
etLibraryFilePathList):


path: /lib/osgPlugins-2.9.14

path: /Users/alex/Desktop/osgviewer.app/Contents/PlugIns

path: /Users/alex/Library/Application Support/OpenSceneGraph/PlugIns

path: /Library/Application Support/OpenSceneGraph/PlugIns

path: ../Plugins


I tried also without the osgPlugins-2.9.14 folder under Plugins and also by
providing an absolute path to setLibraryFilePathList, but still the same.

Am I missing something? By the way, I built against SDK 10.5 not 10.6.


FYI, when I try to load the DAE example with JPGs textures, the DAE plugin
is correctly loaded and I can see the model, the issue is just related to
imageio plugin loading, I guess. Also, I had no problems at all with OSG
2.9.6, neither with JPGs nor with FBX.


Thank you.

Alessandro
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Re: [osg-users] Plugins finding/loading issue on Mac OS X (imageio and FBX)

[Alessandro Terenzi]

Hi Stephan,
thanks for your suggestions, I solved my problem by re-building from scratch
both OSG's frameworks and every plugin. I guess I must have messed up
something when I tried to re-build only one plugin earlier.

Thanks again.
Alessandro

On Thu, May 26, 2011 at 1:04 PM, Stephan Maximilian Huber 
ratzf...@digitalmind.de wrote:

 Hi

 just an idea: Did you build the INSTALL-target? Looks like the linker
 cannot find the libs referenced by the plugin. What does otool -L report
 for a plugin-file? Any entries in console.log or syslog?

 cheers,
 Stephan


 Am 26.05.11 10:40, schrieb Alessandro Terenzi:
  Hi,
  I want to port some apps from OSG 2.9.6 to the latest developer release
  (2.9.14)...so I've built OSG's frameworks and osgviewer.app and
 everything
  went fine on Windows, but I'm getting some troubles with plugins loading
 on
  Mac OS X (10.5).
 
  In osgviewer.cpp I added the following line:
 
  osgDB::setLibraryFilePathList(../Plugins);
 
  and I added both the Frameworks and Plugins folders to the osgviewer.app
  package. But when I try to load either a DAE with JPG textures or a FBX I
  get errors because plugins cannot be found, even though they seems to be
  loaded as you can see from the console output:
 
  (when loading a FBX)
 
  ...
 
  itr='../Plugins'
 
  FindFileInPath() : trying
 
 /Users/alex/Desktop/osgviewer.app/Contents/Plugins/osgPlugins-2.9.14/osgdb_fbx.so
  ...
 
  FindFileInPath() : USING
 
 /Users/alex/Desktop/osgviewer.app/Contents/Plugins/osgPlugins-2.9.14/osgdb_fbx.so
 
  Opened DynamicLibrary osgPlugins-2.9.14/osgdb_fbx.so
 
  Warning: Could not find plugin to read objects from file
  /Users/alex/Desktop/models/max/dude/dude.fbx.
 
  ./osgviewer: No data loaded
 
 
  (when loading JPGs via IMAGEIO)
 
 itr='../Plugins'
 
  FindFileInPath() : trying
 
 /Users/alex/Desktop/osgviewer.app/Contents/Plugins/osgPlugins-2.9.14/osgdb_imageio.so
  ...
 
  FindFileInPath() : USING
 
 /Users/alex/Desktop/osgviewer.app/Contents/Plugins/osgPlugins-2.9.14/osgdb_imageio.so
 
  Opened DynamicLibrary osgPlugins-2.9.14/osgdb_imageio.so
 
  Warning: Could not find plugin to read objects from file
  /Users/alex/Desktop/models/dae/test/untitled/texture0.jpg.
 
 
  Why do I get opposite messages? (the first that says that the plugin has
  been opened and the second that it has not been found)
 
  I set the notify level to DEBUG_INFO and DEBUG_FP, by cannot get more
  details about the error.
 
 
  If I try to print the plugins search paths (by means of g
  etLibraryFilePathList):
 
 
  path: /lib/osgPlugins-2.9.14
 
  path: /Users/alex/Desktop/osgviewer.app/Contents/PlugIns
 
  path: /Users/alex/Library/Application Support/OpenSceneGraph/PlugIns
 
  path: /Library/Application Support/OpenSceneGraph/PlugIns
 
  path: ../Plugins
 
 
  I tried also without the osgPlugins-2.9.14 folder under Plugins and also
 by
  providing an absolute path to setLibraryFilePathList, but still the same.
 
  Am I missing something? By the way, I built against SDK 10.5 not 10.6.
 
 
  FYI, when I try to load the DAE example with JPGs textures, the DAE
 plugin
  is correctly loaded and I can see the model, the issue is just related to
  imageio plugin loading, I guess. Also, I had no problems at all with OSG
  2.9.6, neither with JPGs nor with FBX.
 
 
  Thank you.
 
  Alessandro
 
 
 
 
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Re: [osg-users] Please test svn/trunk in prep for next dev release

[Alessandro Terenzi]

Hi,
I've built OSG as frameworks (on Mac OS X, of course) and everything worked
fine on my end (even the FBX plugin built against the latest FBX SDK). Only
one note: I've got lots of warnings and had to manually change the
installation path for each framework because CMake ignored it.

Regards.
Alessandro
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Re: [osg-users] iOS: integration with not-OpenGL apps

[Alessandro Terenzi]

Thank you Stefan, I'm going to try it right now...

Alessandro

On Wed, May 4, 2011 at 10:22 PM, Stephan Huber ratzf...@digitalmind.dewrote:

 Hi Alessandro,

 I had some time to polish the GraphicsWindowIOS-implementation and it
 should work now to use a GraphicsWindowIOS as part of a bigger
 IOS-application.

 on github (https://github.com/stmh/osg/tree/iphone) there's even a new
 example demonstrating the usage.

 Basically you create a WindowDataClass with your parent-view as
 parameter, this will instruct GraphicsWindowIOS to add the created view
 to this parent-view, and it does respect the sizes in the traits-object.

 After that, you can query the GraphicsWindowIOS-object for the created
 view via dynamic_castosgViewer::GraphicsWindowIOS*(window)-getView();

 See the code inside FlipSideViewController.mm for more details.

 These new changes are currently not part of osg-trunk, but I'll submit
 them, as soon as possible.

 Please let me know, if this new code works on your end.

 cheers,

 Stephan



 Am 02.05.11 19:17, schrieb Alessandro Terenzi:
  Hi,
  I'm trying to find a way to integrate OSG into a generic app for iOS, but
  I'm facing some problems. Maybe I'm missing something, but as far as I've
  understood, it looks like that, in order to use OSG on iOS, I must always
  use the UIWindow and the corresponding UIView/UIViewController objects
  created by means of GraphicsWindowIOS::WindowData...but in this way I
 find
  difficult to later manage those UIView and UIViewController objects
  especially if I need to integrate them in a dynamic view hierarchy.
 
  What I'd like to do is to create a UIView-derived class that encapsulates
  everything required to use OSG to draw in just that view, then I'd like
 to
  manage that view by my own UIViewController (not related to OSG).
 
  Is there a way to do this with what is already available in OSG (2.9.13)?
 If
  not, can anyone suggest what (beyond creating a context and all OpenGLES
  related stuff) the UIView-derived class should do from the OSG point of
  view?
 
  Thanks.
  Alessandro
 
 
 
 
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Re: [osg-users] iOS: integration with not-OpenGL apps

[Alessandro Terenzi]

I've tried the new updated version and it works fine on my end. Now it looks
very easy to manage the OSG's view within a custom view controller.

I'd like to ask a couple of things, just to understand better how everything
works.

1) in GraphicsWindowIOS, beyond the window and view, also a view
controller is defined and it is allocated in GraphicsWindowIOS.mm just after
the view...is this view controller really needed? How is it used?

2) in the view_test example, at the end of FlipsideViewController,mm file,
what is the role of USE_GRAPICSWINDOW_IMPLEMENTATION(IOS) ? I tried by
removing it and it looks like that my app still works...

Thanks.
Alessandro

On Thu, May 5, 2011 at 9:24 AM, Alessandro Terenzi a.tere...@gmail.comwrote:

 Thank you Stefan, I'm going to try it right now...

 Alessandro

 On Wed, May 4, 2011 at 10:22 PM, Stephan Huber ratzf...@digitalmind.dewrote:

 Hi Alessandro,

 I had some time to polish the GraphicsWindowIOS-implementation and it
 should work now to use a GraphicsWindowIOS as part of a bigger
 IOS-application.

 on github (https://github.com/stmh/osg/tree/iphone) there's even a new
 example demonstrating the usage.

 Basically you create a WindowDataClass with your parent-view as
 parameter, this will instruct GraphicsWindowIOS to add the created view
 to this parent-view, and it does respect the sizes in the traits-object.

 After that, you can query the GraphicsWindowIOS-object for the created
 view via dynamic_castosgViewer::GraphicsWindowIOS*(window)-getView();

 See the code inside FlipSideViewController.mm for more details.

 These new changes are currently not part of osg-trunk, but I'll submit
 them, as soon as possible.

 Please let me know, if this new code works on your end.

 cheers,

 Stephan



 Am 02.05.11 19:17, schrieb Alessandro Terenzi:
  Hi,
  I'm trying to find a way to integrate OSG into a generic app for iOS,
 but
  I'm facing some problems. Maybe I'm missing something, but as far as
 I've
  understood, it looks like that, in order to use OSG on iOS, I must
 always
  use the UIWindow and the corresponding UIView/UIViewController objects
  created by means of GraphicsWindowIOS::WindowData...but in this way I
 find
  difficult to later manage those UIView and UIViewController objects
  especially if I need to integrate them in a dynamic view hierarchy.
 
  What I'd like to do is to create a UIView-derived class that
 encapsulates
  everything required to use OSG to draw in just that view, then I'd like
 to
  manage that view by my own UIViewController (not related to OSG).
 
  Is there a way to do this with what is already available in OSG
 (2.9.13)? If
  not, can anyone suggest what (beyond creating a context and all OpenGLES
  related stuff) the UIView-derived class should do from the OSG point of
  view?
 
  Thanks.
  Alessandro
 
 
 
 
  ___
  osg-users mailing list
  osg-users@lists.openscenegraph.org
 
 http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

 ___
 osg-users mailing list
 osg-users@lists.openscenegraph.org
 http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org



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