Re: [osg-users] IOS Linking error Undefined symbols for architecture i386: _graphicswindow_IOS
Hi Stephan and Chris Hanson, Thank you for the quick reply. Now I am able to compile and link sample application. Now I have a problem to load OSG files. I did in the following way Added a folder called Resources from File-NewGroup. Added a test.osg file to Resources folder. The same test.osg file added to Bundle Resources in Build Phases. After that reading osg file as osg::ref_ptrosg::Node model = (osgDB::readNodeFile(test.osg)); When I run the application on Simulator it loads a gray cube instead of test.osg. I don't know from where this cube is getting loaded. Can you pleas help me how to load test.osg file ... Thank you! Cheers, Koduri -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51304#51304 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] example osgmovie play videos example osgprerender does not
Hello, I compiled OpenSceneGraph-3.1.3 with ffmpeg-0.8 and as mentioned in the subject, the example osgmovie works but the osgprerender does not play any videos, just the flag with the model appears. I called === ./osgmovie -e ffmpeg ~/movie.avi === and === ./osgprerender -e ffmpeg PATH_TO_OSG_DATA/cessna.osg ~/movie.avi === my system is Debian, graphic card is nVidia GT 218 [GeForce 210] Cheers, David ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] example osgmovie play videos example osgprerender does not
Hi David, I'm rather perplexed on what you are expecting to happen with the osgprerender example and movies, this example is an just a demonstration of render to texture support that the OSG provides and have no support for rendering movies whatsoever. The osgmovie example is a very specific example as well which is why it renders movies... Please use the examples as code examples for the specific purpose of demonstrating a small subset of features of the OSG, they aren't general purpose applications that provide support for all features of the OSG. Robert. On 30 November 2012 12:30, DavidHornung horn...@googlemail.com wrote: Hello, I compiled OpenSceneGraph-3.1.3 with ffmpeg-0.8 and as mentioned in the subject, the example osgmovie works but the osgprerender does not play any videos, just the flag with the model appears. I called === ./osgmovie -e ffmpeg ~/movie.avi === and === ./osgprerender -e ffmpeg PATH_TO_OSG_DATA/cessna.osg ~/movie.avi === my system is Debian, graphic card is nVidia GT 218 [GeForce 210] Cheers, David __**_ osg-users mailing list osg-users@lists.**openscenegraph.org osg-users@lists.openscenegraph.org http://lists.openscenegraph.**org/listinfo.cgi/osg-users-** openscenegraph.orghttp://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
Re: [osg-users] Transfer instance coordinates
Hi, I use a TextureRectangle to store instances transformations matrix : - TextureRectangle because it's easier to read a specific coordinate - texure format is set on RGBA_32F to get full 32 bit floating point precision - RGBA = there are 4 values (R, G, B, A) per pixel So, a full transform matrix is 4x4 = 16 values = I use 4 pixels to store a full matrix this way : - Texture size is 4 x InstanceCount - on each row, there are 4 pixels = 16 values So, in the shader, to retrieve the full matrix, I can do this : (code from memory, no garanty this is exact) mat4 matrix; matrix[0] = Texture2DRectangle(myTexture, 0, gl_InstanceID); = read 4 values matrix[1] = Texture2DRectangle(myTexture, 1, gl_InstanceID); = read 4 values matrix[2] = Texture2DRectangle(myTexture, 2, gl_InstanceID); = read 4 values matrix[3] = Texture2DRectangle(myTexture, 3, gl_InstanceID); = read 4 values and I transform gl_Vertex with this matrix. It's a little heavy (4 texel fetch for each vertex) but it allow to send full matrix (position, attitude, scale...). If you need only the position, you can store it as a vec4 in a RGBA_32F TextureRectangle of 1 pixel width. Cheers, Aurelien -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=51309#51309 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Retrobooster playable demo
Hello, On 11/30/2012 02:00 AM, Terry Welsh wrote: A little more blatant self-promotion here. I just released the first playable demo of my OSG-based game. Check it out if you want to see some crazy OSG action. http://www.reallyslick.com/retrobooster/downloads.html Cool, well done! I have only a little nitpick - on Linux with Twinview the game starts stretched across both screens, making it unplayable (the ship is directly between the two monitors). Please, make sure that one can actually constrain the resolution and/or play in a window, don't rely on SDL setting up a full screen window for you. The problem with Twinview or Xinerama on Linux is a long standing, annoying SDL bug and the only way how to work it around for many games is to disable the second screen - annoying. Regards, Jan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
