Hi all,
How can i test the GL_RGBA32F_ARB render to texture quality. i don't know
whether i did a mistake in programming or my Nivida quadra fx 570m with
windows vista driver doesn't support it.
Or do i have to generate an own graphic context for enabling this feature?
/regards
adrian
// texture
_RTTInfoPreprocessingBackFront._texture = new osg::Texture2D;
_RTTInfoPreprocessingBackFront._texture->setTextureSize(_RTTInfoPreprocessingBackFront._resolution_x,
_RTTInfoPreprocessingBackFront._resolution_y);
#ifndef USE_FOR_RTT_FLOAT_IMAGE
_RTTInfoPreprocessingBackFront._texture->setInternalFormat(GL_RGBA);
#else
_RTTInfoPreprocessingBackFront._texture->setInternalFormat(GL_RGBA32F_ARB);
_RTTInfoPreprocessingBackFront._texture->setSourceFormat(GL_RGBA);
_RTTInfoPreprocessingBackFront._texture->setSourceType(GL_FLOAT);
#endif
_RTTInfoPreprocessingBackFront._texture->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR);
_RTTInfoPreprocessingBackFront._texture->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR);
_RTTInfoPreprocessingBackFront._texture->setResizeNonPowerOfTwoHint(false);
// camera
_RTTInfoPreprocessingBackFront._camera = new osg::Camera;
_RTTInfoPreprocessingBackFront._camera->setClearColor(osg::Vec4(0.0f,0.0f,0.0f,1.0f));
_RTTInfoPreprocessingBackFront._camera->setClearMask(GL_COLOR_BUFFER_BIT
| GL_DEPTH_BUFFER_BIT);
_RTTInfoPreprocessingBackFront._camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
// set viewport
_RTTInfoPreprocessingBackFront._camera->setViewport(0,0,_RTTInfoPreprocessingBackFront._resolution_x,_RTTInfoPreprocessingBackFront._resolution_y);
// set the camera to render before the main camera.
_RTTInfoPreprocessingBackFront._camera->setRenderOrder(osg::Camera::PRE_RENDER);
// tell the camera to use OpenGL frame buffer object where supported.
_RTTInfoPreprocessingBackFront._camera->setRenderTargetImplementation(osg::Camera::PIXEL_BUFFER_RTT);
// image
_RTTInfoPreprocessingBackFront._image=new osg::Image;
#ifndef USE_FOR_RTT_FLOAT_IMAGE
_RTTInfoPreprocessingBackFront._image->allocateImage(_RTTInfoPreprocessingBackFront._resolution_x,
_RTTInfoPreprocessingBackFront._resolution_y, 1, GL_RGBA,
GL_UNSIGNED_BYTE);
#else
_RTTInfoPreprocessingBackFront._image->allocateImage(_RTTInfoPreprocessingBackFront._resolution_x,
_RTTInfoPreprocessingBackFront._resolution_y, 1, GL_RGBA, GL_FLOAT);
#endif
_RTTInfoPreprocessingBackFront._camera->attach(osg::Camera::BufferComponent(osg::Camera::COLOR_BUFFER),
_RTTInfoPreprocessingBackFront._image.get(),0,0);
_RTTInfoPreprocessingBackFront._camera->setPostDrawCallback(new
WriteCameraPostDrawCallback(_RTTInfoPreprocessingBackFront._image.get(),"RTTInfoPreprocessingBackFront.png",false));
_RTTInfoPreprocessingBackFront._texture->setImage(0,_RTTInfoPreprocessingBackFront._image.get());
--
********************************************
Adrian Egli
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