Re: [osg-users] huge mesh decimation

Ferdi Smit wrote: I'm trying to produce some simplified versions of large mesh objects (~15-25M triangle CT scans) osgUtil::Simplifier gives me a bad allocation exception when using a model with ~10M triangles... I suppose it was not written for very large models and keeps a lot of data

Re: [osg-users] huge mesh decimation

On Thu, Dec 11, 2008 at 10:20 AM, Paul Melis [EMAIL PROTECTED] wrote: Was CGAL among the ones you tried? If so, did it work at all? It seems like a nice library, but I've never taken the time to actually give it a test drive. Regards, Paul It's a good library, but some things are

Re: [osg-users] Funding

Just to remember, there is a contractors page on the Wiki : http://www.openscenegraph.org/projects/osg/wiki/Community/Contractors On Thu, Dec 11, 2008 at 1:29 AM, Sukender [EMAIL PROTECTED] wrote: Hmmm... you're certainly right. But what about selling OSG distributions on DVD? Wouldn't this

Re: [osg-users] RTT and stereo (corrected)

Hi Roman, On Thu, Dec 11, 2008 at 6:57 AM, Roman Grigoriev [EMAIL PROTECTED] wrote: So for now I solve problem by doing all postprocess operations for left and right eye and have huge frame drop to 25 fps L Stereo rendering normally incurrs a performacne hit, as you are doubling the amount of

Re: [osg-users] huge mesh decimation

HI Ferdi, The osgUtil::Simplifier wasn't designed to handle really large meshes, so there are no special schemes to doing the simplifier incrementally. The class makes extensive use of std contains like std::set/map so memory consumption won't be too linear, but shouldn't be exponential so it

Re: [osg-users] huge mesh decimation

Meshlab was crashing when I tried it; I've just been testing with 28M polygon stanford lucy (have to convert my other files to an appropriate format). smaller models worked fine (e.g. 10M thai statue). It seems perfect in all other aspects for what I need right now... I don't know how CGAL

Re: [osg-users] RTT and stereo (corrected)

Thanx Robert for your reply. With single view I have 50 fps with stereo I have 25 fps. It is very predictable result. Event 0.05 Update 1.36 (two Intersense InertiaCube3 sensors) Cull 5.2 (clouds) Draw 2.16 (ephemeris,clouds) GPU 27.2 I simply try to improve it. I have single 8600GT. But

Re: [osg-users] RTT and stereo (corrected)

Hi Roman, The performance you are getting it not to surprising. Your GPU costs are obviously the biggest bottleneck. Moving to a single GTX280 will radically improve this, there is little reason why you shouldn't be able to do 60Hz in stereo. Using two GTX280 would give you an even wider

Re: [osg-users] multi view stereo

Hi Dieter, You shouldn't need any special draw code the OSG can do multiple cameras already, you just need to set up a single View with multiple slave Cameras, you can have as many as you want, 5 will be no problem. The code in osgViewer::View::setUpViewForSpephicalCode(..) would

Re: [osg-users] The Collada plugin and transparency

Jason Daly wrote: Roger James wrote: I was assuming that because the lighting equation (blinn) has already been applied in the pipeline before textures are applied, that if we wanted to use a texture map to supply the ambient terms to that equation, then the lighting equation

Re: [osg-users] Failed loading osgdb_freetype.dll

Hi, installing the Microsoft Visual C++ 2005 SP1 Redistributable Package (x86) from http://www.microsoft.com/downloads/details.aspx?familyid=200b2fd9-ae1a-4a14-984d-389c36f85647displaylang=en solves the problems. Thanks a lot for your help Tomlinson, Gordon wrote: Have you installed the

Re: [osg-users] multi view stereo

Thanks Robert I will try this Dieter -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Robert Osfield Sent: Thursday, 11 December, 2008 11:37 To: OpenSceneGraph Users Subject: Re: [osg-users] multi view stereo Hi Dieter, You shouldn't need any special

Re: [osg-users] ShadowMap is wiping out ambient light

Richard Baron Penman schrieb: hello, when I add a shadow map to my scene it wipes out the ambient lighting. Searching the archives I noticed a thread from May with the same problem: http://lists.openscenegraph.org/htdig.cgi/osg-users-openscenegraph.org/2008-May/011559.html But the discussion

[osg-users] Problems loading png,jpg,...

Hi, I have built osg version* 2.7.4* but there's not plugins for png,jpg,tiff, etc format, however it has pluggins for tga, rgb,... . Could somebody tell me why and how can I include them? -- Adaya Lorenzo Leon ___ osg-users mailing list

Re: [osg-users] Funding

HI All, I remain curious about the possibility of finding funding routes that would support a dedicated dev team, although also a bit sceptical about the ability for us to draw in enough cash to cover a full time salary for engineer just dedicated to OSG infrastructure/build

Re: [osg-users] Problems loading png,jpg,...

Hi Adaya, The OSG's build system checks to see if you have the libpng/libjpeg etc. dependencies installed, if you have it'll build the plugins, if you don't it want build them. To include them download and install the dependencies. See the dependencies page on the wiki. If you are using debian

Re: [osg-users] RTT and stereo (corrected)

When doing stereo with two 280's use two viewer Camera's to make the most of multi-threading performance that the OSG has to offer. Could you please explain it? But if I have 2 views I have to share scenegraph between windows. So OSG simply duplicate geometries? Or maybe I don't understand

Re: [osg-users] RTT and stereo (corrected)

Hi Roman, When doing stereo you would typically use a single View with a single master Camera that controls the what the overall view of the scene is. This View would then have two slave Cameras that are offset from the master Camera's view/projection matrix to provide the appropriate view. The

Re: [osg-users] Problems loading png,jpg,...

check Zlib1.dll gammer max. 2008/12/11 Robert Osfield [EMAIL PROTECTED] Hi Adaya, The OSG's build system checks to see if you have the libpng/libjpeg etc. dependencies installed, if you have it'll build the plugins, if you don't it want build them. To include them download and install

Re: [osg-users] The Collada plugin and transparency

Roger James wrote: Jason Daly wrote: Roger James wrote: I was assuming that because the lighting equation (blinn) has already been applied in the pipeline before textures are applied, that if we wanted to use a texture map to supply the ambient terms to that

Re: [osg-users] RTT and stereo (corrected)

Thanx Robert! I try to use this config: CompositeViewer (2 View) First View1 800*600 (left eye first DVI output) Left eye camera Second View2 800*600 (right eye second DVI output) right eye camera So I only need to execute view1.setSceneData(root); view2.setSceneData(root); Roman -Original

Re: [osg-users] Funding

Hi Robert, hi all, I agree with 99% of what you say. And I would like to insist on the fact that visivility (marketing/web site/etc.) is a weak point of OSG. It's really too bad since OSG has a great source code and great community. Maybe some threads would be started about that? For instance

Re: [osg-users] RTT and stereo (corrected)

HI Roman, As I send in my previous email you shouldn't use two separate views for what you are doing, it's neither conceptually a good fit, nor programatically. Use a single View with two slave Camaras, it's simpler coding wise, and you conceptually just have a single view, either though it's

[osg-users] Need Simple Example

Hello : ia trying to load a 3ds modle and navigate or drive through it i can notfollow the exact steps can any one send me a simple program that create a new scene graph and display it in one window thanks ___ osg-users mailing list

Re: [osg-users] RTT and stereo (corrected)

Thanx Robert! I'll make like you said. P.S. Could you please tell me in what situation I should use CompositeViewer? Because as far as I got for opengl it's better to have one big window than two small windows? Roman -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]

Re: [osg-users] RTT and stereo (corrected)

or Matrix Head2GO ))) Gammer Max. 2008/12/11 Roman Grigoriev [EMAIL PROTECTED] Thanx Robert! I try to use this config: CompositeViewer (2 View) First View1 800*600 (left eye first DVI output) Left eye camera Second View2 800*600 (right eye second DVI output) right eye camera So I only

Re: [osg-users] Need Simple Example

Hi, Just take a look at all the examples provided with OSG and the applications like osgviewer, you'll probably find what you're looking for. On Thu, Dec 11, 2008 at 2:31 PM, olfat ibrahim [EMAIL PROTECTED]wrote: Hello : ia trying to load a 3ds modle and navigate or drive through it i can

Re: [osg-users] Funding

Hi Sukender, On Thu, Dec 11, 2008 at 1:05 PM, Sukender [EMAIL PROTECTED] wrote: I agree with 99% of what you say. And I would like to insist on the fact that visivility (marketing/web site/etc.) is a weak point of OSG. It's really too bad since OSG has a great source code and great

Re: [osg-users] Need Simple Example

How about looking at one of the 120+examples provided with OSG \WHERE YOUR OSG ROOT IS\examples\ Also see http://www.openscenegraph.org/projects/osg/wiki/Support/UserGuides/Examp les http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials

Re: [osg-users] Funding

Hi Robert, Your idea to get adverts to pay for adverts is worth trying. But for my part, this would be useless since I generate no significant traffic. An effective advertisement would also just be becoming a bit better at promoting new releases and events, writing articles, promoting active

Re: [osg-users] RTT and stereo (corrected)

Hi Roman, On Thu, Dec 11, 2008 at 1:31 PM, Roman Grigoriev [EMAIL PROTECTED] wrote: P.S. Could you please tell me in what situation I should use CompositeViewer? Please search my previous explanations of CompositeViewer vs Viewer. Because as far as I got for opengl it's better to have one

Re: [osg-users] Funding

Hi Sukender, On Thu, Dec 11, 2008 at 2:28 PM, Sukender [EMAIL PROTECTED] wrote: Blogging can be an idea too... but to be effective, it has to be made on blogs/pages that have a relatively hight importance for search engines, I guess. The problem is then the same as adverts, isn't it? You

Re: [osg-users] discontinuity in texture in VPB...

Thanks for the help. I will try these suggestions to further investigate this problem... -Shayne -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.P. Delport Sent: Wednesday, December 10, 2008 11:39 PM To: OpenSceneGraph Users Subject: Re: [osg-users]

Re: [osg-users] The Collada plugin and transparency

Roger James wrote: if (transparent or transparency element present in the technique) { // Turn on the OpenGL blender Calculate a blending factor using transparent and transparency according to the opaque mode in force. // Decide whether to use GL_SRC_XXX or GL_CONSTANT _XXX in the

[osg-users] Using OSG on Windows on Bootcamp

Hi, I have a MacBook and I'm using OSG on Windows, installed with bootcamp. My application doesn't detect the right mouse button even though I am using a regular two-button mouse (Microsoft's). I was wondering if anyone stumbled upon anything of the kind and could tell me wether the problem

[osg-users] Using Cygwin compiling OSG examples but how do you choose X11 or Win32 type compiles

Not sure I can explain this well but I will give it a shot. I use Cygwin and have can compile OSG and the examples using ccmake and it compiles using opengl and the win32 api interface (w323api). This works great and I can run the examples. But just like Unix - Cygwin can run

Re: [osg-users] The Collada plugin and transparency

Jason Daly wrote: Roger James wrote: if (transparent or transparency element present in the technique) { // Turn on the OpenGL blender Calculate a blending factor using transparent and transparency according to the "opaque" mode in force. // Decide whether to use

[osg-users] Viewer destruction affects unrelated contexts

I encountered some unexpected behavior when a Viewer is destroyed. When the viewer is destructing, it destroys its contained camera, which removes itself from its graphics context. During the removal process, the graphics context calls releaseGLObjects on the camera's children, passing in the

Re: [osg-users] Using OSG on Windows on Bootcamp

HI Renan, EventType does not map to mouse buttons so you misusing the LEFT/RIGHT_MOUSE_BUTTON enum. For button you just do ea.getButton(), the event type of buttons are osgGA::GUIEventAdapter::RELEASE/PUSH. Please do a search of examples and osgGA for usage. Robert. On Thu, Dec 11, 2008 at

Re: [osg-users] Using Cygwin compiling OSG examples but how do you choose X11 or Win32 type compiles

Hi Brian, You'll need to modify the src/osgViewer/CMakeLists.txt to add the option in of compile with X11 under Windows. Have a look at the OSX blocks for a guide how to do this. Robert. On Thu, Dec 11, 2008 at 7:36 PM, Brian Keener bkee...@thesoftwaresource.com wrote: Not sure I can explain

Re: [osg-users] Viewer destruction affects unrelated contexts

Hi Mark, Could you modify one of the OSG examples to recreate this issue, once I can recreate it at my end I'll be able to look into solve the bug. Robert. On Thu, Dec 11, 2008 at 7:44 PM, Mark Sciabica msciab...@itracs.com wrote: I encountered some unexpected behavior when a Viewer is

Re: [osg-users] Using OSG on Windows on Bootcamp

Thanks, Robert, that really helped. Renan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] The Collada plugin and transparency

Hello Roger, I did not make a study of the Collada transparency intricacies like you did. The assumption I made was that a texture for diffuse specifies the diffuse components to use in the texture. The fact that texture coincidently was packed with an alpha channel (which of course happens a

Re: [osg-users] Funding

Hi Robert, Seeing your answer, it seems that I was not as clear as I should have been. Well, about blogs, that's okay. But about gaming industry, I was just saying that advertising/marketing towards game developpers should be interesting. For now, I have the impression that some of them fear

Re: [osg-users] Viewer destruction affects unrelated contexts

Hi Robert, I was testing how osg handled changing a texture's image when the texture was used in multiple viewers when I ran into the problem. Attached is my test code. Closing one of the windows unexpectedly reloaded the texture in the other window. My texture testing exposed another bug

Re: [osg-users] The Collada plugin and transparency

Smeenk, R.J.M. (Roland) wrote: Hello Roger, I did not make a study of the Collada transparency intricacies like you did. The assumption I made was that a texture for diffuse specifies the diffuse components to use in the texture. The fact that texture coincidently was packed with an alpha

[osg-users] Assigning different size image to texture fails with multiple contexts

Hello Robert, I have found a bug when assigning a new image to an existing texture that already has an OpenGL texture object allocated. The problem appears to be that Texture2D::apply is passing the wrong dimensions in to applyTexImage2D_subload. Since the dimensions of the image don't match