Hello Guys, I am a little bit dissatisfied. I want to render into an Image. I need the pixel data on the cpu memory. That is the reason why I don't use a texture as target. Anyway I need a higher precision than 8 bit. So I tried to render into an 16 Bit luminance image. Then I got an OpenGL error:
Warning: detected OpenGL error 'invalid enumerant' after RenderBin::draw(,) I tried other internal formats (i.e. GL_RGBA16F_ARB and GL_RGBA32F_ARB), but I got the same message. Here is partial code from me: // init image _sumImg = new ::osg::Image; _sumImg->allocateImage(1, 1, 1, GL_LUMINANCE16, GL_FLOAT); //... // init pre render camera _preCam = new ::osg::Camera; _preCam->setViewport(0,0,1,1); _preCam->setProjectionMatrixAsOrtho2D(0,0.1,0,0.1); _preCam->setClearColor(::osg::Vec4(0,0,0,1)); _preCam->setReferenceFrame(::osg::Transform::ABSOLUTE_RF); _preCam->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); _preCam->setRenderTargetImplementation(::osg::Camera::FRAME_BUFFER_OBJECT); _preCam->attach(::osg::Camera::COLOR_BUFFER0, _sumImg); _preCam->setRenderOrder(::osg::Camera::PRE_RENDER); // get the pixel color at location (0,0) ::osg::Vec4 c = _sumImg->getColor(0,0); Thanks Martin -- NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurück-Garantie! Jetzt informieren: http://www.gmx.net/de/go/freephone _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
