Hi, I've got a project were I want to render a floating point texture. Currently im using a texture rectangle with GL_RGB as a render target which is attached to a prerender camera. This works fine but now I need to render to a floating point texture and I have tried GL_FLOAT_R32_NV(which is the one I want), and some of the ARB-variants but I guess im missing something because it does not work. The shader im using is simply trying to output pixels as red gl_FragColor.r = 1; but nothing seems to get rendered, the texture just stays black . For the first frame that is rendered i get the following detected OpenGL error: "invalid enumeration after RenderBin::Draw" and subsequent rendering calls gives the message: "invalid operation after RenderBin::Draw"
I set the following texture 'attributes' texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP); texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP); texture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::NEAREST); texture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::NEAREST); texture->setInternalFormat(GL_FLOAT_R32_NV); texture->setShadowComparison(false); The texture is attached to the camera as osg::Camera::COLOR_BUFFER RenderTargetImplementation is set to FRAME_BUFFER_OBJECT Im using a Quadro fx 700 with support for the GL_NV_float_buffer. Any tips or pointers are highly appreciated! /Andreas Lindmark = Sale on Peak Flow Meters Prevent Asthma Attacks in Kids or Adults Electronic Peak Flow Meter. http://a8-asy.a8ww.net/a8-ads/adftrclick?redirectid=580c56d9ac68512a3a942e278be98293 -- Powered by Outblaze _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
