Re: [osg-users] Disable all antialiasing
Hi, I'm facing a problem when creating my FBO : Code: Warning: detected OpenGL error 'invalid operation' at After Renderer::compile RenderStage::runCameraSetUp(), FBO setup failed, FBO status= 0x8cd6 Warning: FrameBufferObject: could not create the FBO RenderStage::runCameraSetUp(), FBO setup failed, FBO status= 0x0 Warning: detected OpenGL error 'invalid value' at after RenderBin::draw(..) Warning: FrameBufferObject: could not create the FBO RenderStage::runCameraSetUp(), FBO setup failed, FBO status= 0x0 PixelBufferWin32::bindPBufferToTextureImplementation, wglBindTexImageARB error: LÆopÚration a rÚussi. Warning: detected OpenGL error 'invalid operation' at after RenderBin::draw(..) Warning: detected OpenGL error 'invalid operation' at end of SceneView::draw() Warning: detected OpenGL error 'invalid operation' at start of State::apply(StateSet*) Warning: detected OpenGL error 'invalid operation' at end of State::apply(StateSet*) My code : Code: p_renderTexture = new osg::Texture2D(); p_renderTexture-setTextureSize(200, 200); p_renderTexture-setInternalFormat(GL_RGBA_INTEGER_EXT); p_renderTexture-setSourceFormat(GL_RGBA32I_EXT); p_renderTexture-setSourceType(GL_BYTE); p_renderTexture-setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::NEAREST); p_renderTexture-setFilter(osg::Texture2D::MAG_FILTER, osg::Texture2D::NEAREST); p_renderTexture-setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE); p_renderTexture-setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE); p_renderTexture-setDataVariance(osg::Object::DYNAMIC); p_renderTexture-setUseHardwareMipMapGeneration(false); p_renderTexture-setResizeNonPowerOfTwoHint(false); I think there is something wrong with that : Code: p_renderTexture-setInternalFormat(GL_RGBA_INTEGER_EXT); p_renderTexture-setSourceFormat(GL_RGBA32I_EXT); p_renderTexture-setSourceType(GL_BYTE); For another application, I use : Code: p_renderTexture-setInternalFormat(GL_RGBA32F_ARB); p_renderTexture-setSourceFormat(GL_RGBA); p_renderTexture-setSourceType(GL_FLOAT); which works well to render to a floating point FBO Thanks for your help ! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45677#45677 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Disable all antialiasing
Hum... I think I'm swapped two parameters. The following seems to work : Code: p_renderTexture-setInternalFormat(GL_RGBA32I_EXT); p_renderTexture-setSourceFormat(GL_RGBA_INTEGER_EXT); p_renderTexture-setSourceType(GL_BYTE); Could you explain me the difference between these 3 parameters ? setInternalFormat = is it the data storage format ? so here, R, G, B and A components stored as a single 32 bit integer ? setSourceFormat= I don't really understand this parameter... setSourceType= I don't really understand this parameter... -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45678#45678 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Disable all antialiasing
Internal format is storage format, it specifies channels number, optionally: data type, number of bits per channel etc Source format is specification of components number, meaning and order Source type is storage data type in image used to load texture from image 22.02.2012, 17:14, Aurelien Albert aurelien.alb...@alyotech.fr: Hum... I think I'm swapped two parameters. The following seems to work : Code: p_renderTexture-setInternalFormat(GL_RGBA32I_EXT); p_renderTexture-setSourceFormat(GL_RGBA_INTEGER_EXT); p_renderTexture-setSourceType(GL_BYTE); Could you explain me the difference between these 3 parameters ? setInternalFormat = is it the data storage format ? so here, R, G, B and A components stored as a single 32 bit integer ? setSourceFormat= I don't really understand this parameter... setSourceType= I don't really understand this parameter... -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45678#45678 ___ 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
[osg-users] Disable all antialiasing
Hi, In my application, I need to render 2 buffers : - color buffer - object-code buffer I obtain the color-buffer by normal rendering to an FBO. For some algorithms purpose (object tracking, objects statisitics, etc...) I need also an object-code buffer with, for each pixel, an int value corresponding to the object. I can do this with a shader in another FBO, but I need this buffer to be not antialiased at all. For example, if the background code is 0, and there are 2 objects in the scene (codes 10 and 20) the final object-code buffer must be filled with 0, 10 and 20 but no other value. How can I configure my rendering to do so ? Maybe using the stencil buffer as a object-code buffer (I don't know if antialiasing such as MSAA affect stencil buffer) ? Thank you! Cheers, Aurelien -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45619#45619 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Disable all antialiasing
Hi Aurelien, You have to explicitly enable multisampling for FBO's when settting up the RTT Camera, so should it be off by default. Robert. On 21 February 2012 08:44, Aurelien Albert aurelien.alb...@alyotech.fr wrote: Hi, In my application, I need to render 2 buffers : - color buffer - object-code buffer I obtain the color-buffer by normal rendering to an FBO. For some algorithms purpose (object tracking, objects statisitics, etc...) I need also an object-code buffer with, for each pixel, an int value corresponding to the object. I can do this with a shader in another FBO, but I need this buffer to be not antialiased at all. For example, if the background code is 0, and there are 2 objects in the scene (codes 10 and 20) the final object-code buffer must be filled with 0, 10 and 20 but no other value. How can I configure my rendering to do so ? Maybe using the stencil buffer as a object-code buffer (I don't know if antialiasing such as MSAA affect stencil buffer) ? Thank you! Cheers, Aurelien -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45619#45619 ___ 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
Re: [osg-users] Disable all antialiasing
Hi All antialiasing is disabled in opengl by default. If you mean you should be able to read values as you write them in shader - you should choose appropriate render target texture attachment type. I'm not sure if it is possible to render to unnormalized integer type color textures in osg, you could try to attach texture with format GL_RGBA32UI and internal format GL_RGBA_INTEGER_EXT (also there are 8\16 bit formats with different channels count, check out GL_EXT_texture_integer extension specification ) to camera to check if it works in osg (as it works with this formats in opengl). Cheers, Sergey 21.02.2012, 12:44, Aurelien Albert aurelien.alb...@alyotech.fr: Hi, In my application, I need to render 2 buffers : - color buffer - object-code buffer I obtain the color-buffer by normal rendering to an FBO. For some algorithms purpose (object tracking, objects statisitics, etc...) I need also an object-code buffer with, for each pixel, an int value corresponding to the object. I can do this with a shader in another FBO, but I need this buffer to be not antialiased at all. For example, if the background code is 0, and there are 2 objects in the scene (codes 10 and 20) the final object-code buffer must be filled with 0, 10 and 20 but no other value. How can I configure my rendering to do so ? Maybe using the stencil buffer as a object-code buffer (I don't know if antialiasing such as MSAA affect stencil buffer) ? Thank you! Cheers, Aurelien -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45619#45619 ___ 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
