Re: [osg-users] Coordinate system in all readerwriters

Hi Paul and all, I agree with you simplification, but I'm not sure it'll keep write(read(A))==A. For instance: - Read a model with a rotation (Y to Z-up for instance). Your +y facing plane will be then +z facing. - Write the model. Model is still rotated and will be +z in the file, thus having

Re: [osg-users] Need OSG BOF organizer

Hi, FWIW bear in mind the OpenGL BOF is traditionally Wednesday eve, so the coveted Wed morning slots go quickly :-) cheers -- mew On Tue, Dec 29, 2009 at 6:45 PM, Paul Martz wrote: > Thanks, Wang Rui. Yes, everything can be done by Internet. With SIGGRAPH in > Las Angeles this year instead

Re: [osg-users] [osgPlugins] New ffmpeg plugin checked into svn/trunk

Robert Osfield wrote: > > I was thinking that an OpenAL plugin would be doable, and could either > return an audio sink or an AudioStream. > > ... > > I'm going to experiment with OpenAL at this end how things go. > I see that osgmovie currently uses SDL for audio playback. Is there still

Re: [osg-users] LightPointNode culling

Thanks, Nick. I tried this out and it does work around the issue, and so far I haven't seen a significant performance hit. This is clearly a bug, though. The lights in the .osg file are set to have a minimum 3 pixel size (I have no idea if this means 3 pixel radius, 3 pixel diameter, or what), but

Re: [osg-users] Rotation 2 DOF node with 2 Different Matrix.

I would store the x and y rotations as separate variables. Use them to compute a single Matrix when you need to update. Test for identity by checking to see if your x and y variables fall within an epsilon range of zero. Paul Martz Skew Matrix Software LLC _http://www.skew-matrix.com_

[osg-users] Rotation 2 DOF node with 2 Different Matrix.

Hi All, I have a problem about rotating one MatrixTransform node with 2 different Matrix which one of responsible for rotation on X by osg::X_AXIS and one of responsible for rotatin by osg::Y_AXIS. I have done some rotation to MT node but after this operations I am waiting to get Identity matrix f

Re: [osg-users] Color fill a primitiveSet

HI Jody See [OpenSceneGraph]\examples\osggeometry\ __ Gordon Tomlinson gor...@gordontomlinson.com IM: gordon3db...@3dscenegraph.com www.vis-sim.com www.gordontomlinson.com www.PhotographyByGordon.com

Re: [osg-users] Coordinate system in all readerwriters

To simplify things, I'd propose the following: - I don't think we need options to control writing. Your app can do any required transformation with a NodeVisitor before calling osgDB to write. The plugin should just write the scene graph passed to it. - For reading, we just need rotation and

Re: [osg-users] gl_FrontMaterial deprecated?

Ulrich Hertlein wrote: On 30/12/09 11:33 AM, Ulrich Hertlein wrote: When I try to use gl_FrontMaterial.ambient, .diffuse, .shininess, etc. in the vert/frag shaders I'm getting silly values (e.g. negative for shininess) that don't correspond to what I set in osg::Material. (But I'm not getting

Re: [osg-users] VIDEO PLAY mixed with 3D objects

Hi, Am 29.12.09 19:51, schrieb Eduardo Pinheiro: > Im working in linux ubuntu 9.10. > I've joined openscenegraph with osgart 2.0 . > > Im having some problems with the following questions, i hope someone can help > me: > > 1. Compile quicktime plugin > > I already installed the libquickti

Re: [osg-users] Animations in OSG

On 12/30/2009 9:12 AM, Dominic Stalder wrote: > what is the best way to animate osg node. At the moment I'm using the > QTimer of Qt to transform the object. Is there a better / more efficent > way to animate object in OSG? If you want to avoid Qt, you can use an update callback on the Transform

Re: [osg-users] Animations in OSG

Hi Dominic, You can use AnimationPath with AnimationPathCallback or the other is osgAnimation stuff. You can check in examples directory to have a better idea how to use it, and what you can do with it. Cheers, Cedric -- Provide OpenGL services around OpenSceneGraph and more +33 659 598 614 Ced

Re: [osg-users] Coordinate system in all readerwriters

Hi ulrich, As Paul said, OpenGL doesn't have any convention. It's just a "common usage" that tell us we should use right-handed. However, I agree the number of proposed options could be reduced (I just fear that it may become less explicit... or not?). Your reflexion make me think we should mer

[osg-users] Animations in OSG

Hi there what is the best way to animate osg node. At the moment I'm using the QTimer of Qt to transform the object. Is there a better / more efficent way to animate object in OSG? Thanks and best regards Dominic ___ osg-users mailing list osg-users

[osg-users] Color fill a primitiveSet

Hi, I have created a triangle with, where a,b and c are the (x,y,z) coordinates of the 3 vertices osg::ref_ptr geom = new osg::Geometry; osg::ref_ptr v = new osg::Vec3Array; geom->setVertexArray( v.get() ); v->push_back(a); v->push_back(b); v->push_back(c); geom->addPrimitiveSet(new osg::DrawArr

Re: [osg-users] DDS uncompressed RGB(A) / BGR(A)

Hi , Sorry, I have not followed all the posts in this thread. I am not sure what is the essence of your problem: Are you saying that 24 bit GL_RGB image written by OSG and later read by OSG looks differently ? Or there is an issue with reading 24 bit color images written by 3rd party too

Re: [osg-users] Coordinate system in all readerwriters

Hi all, On 30/12/09 11:35 AM, Sukender wrote: > - Have plugins do NO rotation by default (reading and writing) when the > format doesn't have coordinate system information (that is to say all but FBX and maybe FLT). > - Have plugins read and apply coordinate system information if available by >

Re: [osg-users] Coordinate system in all readerwriters

Hi Rizzen, Of course! I forgot to add this to the summary. Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ - "Rizzen" a écrit : > Hi all, > > Defining a coordinate system for OSG is a good idea. Though to me the > most important aspect of reader and w

Re: [osg-users] DDS uncompressed RGB(A) / BGR(A)

Hi Wojciech, About 3rd party tools, I've tested XNView, The Compressonator (AMD) and DeepExploration, and all seem to ignore the R, G, B masks... Or there is a mistake somewhere in OSG DDS writing that make those masks unreadable... or else I made a mistake somewhere! I'm a bit lost now... Wha

Re: [osg-users] HUD-Problem

Hi, ok tanks for your answer. I think it wasn't the font dll because the geometry also wasn't drawn. But for the future I know to use the latest developer release. I wish you all a good silversterparty. Thank you! Cheers, Carl -- Read this topic online here: http://forum.o

Re: [osg-users] gl_FrontMaterial deprecated?

On 30/12/09 11:33 AM, Ulrich Hertlein wrote: > When I try to use gl_FrontMaterial.ambient, .diffuse, .shininess, etc. in the > vert/frag > shaders I'm getting silly values (e.g. negative for shininess) that don't > correspond to > what I set in osg::Material. (But I'm not getting errors either.)

Re: [osg-users] osgShadow & ECEF precision problems

Hi Wojtek, small difference big change :-). Shadow is rock solid now. I only thoroughly tested the directional lighting but it should work for the other cases too. Cheers, Marius -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=21974#21974 Att

Re: [osg-users] Coordinate system in all readerwriters

Hi all, Defining a coordinate system for OSG is a good idea. Though to me the most important aspect of reader and writers, is that this expression must be true: read( write( A ) ) = A Rizzen Sukender wrote: > Hi Ulrich, Paul, and all, > > I agree we should unify the coordinate system during loa

Re: [osg-users] DDS uncompressed RGB(A) / BGR(A)

Oops sorry small correction: Intel is little endian. I always confuse these names. I prefer using Least Significant Byte First and Most Significant Byte First to describe the CPU archtecture. Wojtek - Original Message - From: "Wojciech Lewandowski" To: "OpenSceneGraph Users" Sent:

Re: [osg-users] osgShadow & ECEF precision problems

Hi Marius, Current trunk version does not draw debug volumes, don't be surprised not seeing them. Its a problem outside of the osgShadow related to changes in COLOR_PER_PRIMITIVE handling. Cheers, Wojtek - Original Message - From: "Marius Heise" To: Sent: Wednesday, December 30

Re: [osg-users] DDS uncompressed RGB(A) / BGR(A)

Hi, I had some experience with D3D in the past maybe could help clear a picture a little. Basic 32 bit color format using in Directx is named in Direct 3D: D3DFMT_A8R8G8B8. Components are enumerated from most significant byte to least significant byte. Such pixel value is usually set by usi

Re: [osg-users] osgShadow & ECEF precision problems

Hi Wojtek, :-) will do. Since I am currently on osg 2.9.5 I will switch to trunk and check if the "double" modifications only in StandardShadowMap.cpp are enough to solve the problem I had. If this is the case, I will send you the svn patch for osg trunk. My 2.9.5 is too "dirty" and old that I

Re: [osg-users] [osgPlugins] Rendering 3DS objects with bump maps

Hello mpai, Did you solve it? How can i render a 3D studio max in openscenegraph? Thanks. ... Thank you! Cheers, Eduardo -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=21968#21968 ___ osg-users

Re: [osg-users] [osgPlugins] embedded flash problems in browser

Hi, Can you please help me on this? I've made a small example in my linux plataform with osg 2.0 and openscenegrah. Now i want to export it to web. How can i do that? I want that normal users can check my page and can enjoy my experience. How can i make this possbile? Thanks. ... Thank

Re: [osg-users] DDS uncompressed RGB(A) / BGR(A)

Hi all, Is there an endianess problem with DDS format? I'm using a Core2Duo here and I don't know under which kind of machine the DDS has been tested... A little explanation: After a bit of investigation (=cleaning stupid copy-paste), I found that the only "true" bug I had was "Changing R, G or

[osg-users] VIDEO PLAY mixed with 3D objects

Hi, Im working in linux ubuntu 9.10. I've joined openscenegraph with osgart 2.0 . Im having some problems with the following questions, i hope someone can help me: 1. Compile quicktime plugin I already installed the libquicktime 1.1.13. But when i do the make (followed of the cmake) the

Re: [osg-users] [osgPlugins] osgmovie plugin missing?

Hi, Im trying to use it at linux and i follow this steps: 1. Compiled the osg with openscenegraph 2.8.2. I try to load the osgmovie but didnt exists. 2. I've compiled it by hand The same answer that gave to you about the missing plugin has been given. 3. I've installed the quickt

Re: [osg-users] Heightfield allocation fails

Hi Isabelle, It seems to be a qmake issue or something similar. I don't know qmake as well as CMake, but are you sure that libs are correctly linked, and that versions of those libs are also correct? You may try adding a gcc option that tells path for lib searching, and/or change libs order on

Re: [osg-users] osgShadow & ECEF precision problems

Hi Marius, My congratulations! I am glad you did it. I solved my directional light case. I changed all floats to doubles in * StandardShadowMap::ViewData::aimShadowCastingCamera The code in the above method was based on original ShadowMap code and indeed used floats (I must admit I neglecte

Re: [osg-users] How to flip the current frame before it gets drawn?

Thanks again for your help, I'll try that approach. Kind regards. Alessandro On Wed, Dec 30, 2009 at 11:46 AM, Ulrich Hertlein wrote: > Hi Alessandro, > > On 30/12/09 11:32 AM, alessandro terenzi wrote: > > By the way, what is the general approach to RTT? I had a look at some > > examples some ti

Re: [osg-users] How to flip the current frame before it gets drawn?

Hi Alessandro, On 30/12/09 11:32 AM, alessandro terenzi wrote: > By the way, what is the general approach to RTT? I had a look at some > examples some time ago, but it could be useful to have a guide line > here...as far as I remember, RTT requires a camera that sees my scene > and that will be u

[osg-users] CPack on osg-doc and openthreads-doc under MSVC

Hi all, I got an error building "Package openscenegraph-doc" (under MSVC v9, in-source build). The error is: CPack: - Install project: OpenSceneGraph CMake Error at cmake_install.cmake:31 (FILE): file INSTALL cannot copy file "D:/blah-blah-blah/doc/OpenSceneGraphReferenceDocs/a02321.m

Re: [osg-users] Coordinate system in all readerwriters

Hi Ulrich, Paul, and all, I agree we should unify the coordinate system during loading AND writing. Here are my suggestions : - Have plugins do NO rotation by default (reading and writing) when the format doesn't have coordinate system information (that is to say all but FBX and maybe FLT). - H

[osg-users] gl_FrontMaterial deprecated?

Hi guys, did I miss something or is gl_FrontMaterial already deprecated in OpenGL 3? When I try to use gl_FrontMaterial.ambient, .diffuse, .shininess, etc. in the vert/frag shaders I'm getting silly values (e.g. negative for shininess) that don't correspond to what I set in osg::Material. (But

Re: [osg-users] How to flip the current frame before it gets drawn?

Thank you Ulrich. By the way, what is the general approach to RTT? I had a look at some examples some time ago, but it could be useful to have a guide line here...as far as I remember, RTT requires a camera that sees my scene and that will be used to generate a texture, then I'll need another dif

Re: [osg-users] How to flip the current frame before it gets drawn?

On 30/12/09 11:12 AM, alessandro terenzi wrote: > I'd like to flip (horizontally and/or vertically) the current frame just > before it gets drawn on screen, what is the best way to do this? > > I thought about post-multiplying a projection matrix (that is already > available) by a scaling (or) rot

[osg-users] How to flip the current frame before it gets drawn?

I'd like to flip (horizontally and/or vertically) the current frame just before it gets drawn on screen, what is the best way to do this? I thought about post-multiplying a projection matrix (that is already available) by a scaling (or) rotation matrix, but of course this approach acts on the scen

Re: [osg-users] osgShadow & ECEF precision problems

Hi Wojtek, I solved my directional light case. I changed all floats to doubles in * StandardShadowMap::ViewData::aimShadowCastingCamera The light camera position was calculated as float as was thus jumping around. Of course the change from yesterday using double bounding volumes also has to b

Re: [osg-users] Coordinate system in all readerwriters

On 29/12/09 6:52 PM, Paul Martz wrote: > Paul Martz wrote: >> I've noticed the same thing with OBJ. > > A little digging reveals that the OBJ plugin has a "noRotation" Option > that disables the x axis rotation. The rotation is only done on file > load, not on file write. > > Rotation about x is