How should i check whether render-to-float-texture with alpha blending is supported in hardware?
Currently i check for the extension “GL_EXT_framebuffer_sRGB” since this works for my apps target platforms(Ati X800 and X3850), but i don’t think this is the way it’s meant to be done
I render to a FBO with alpha blending, and get minor banding artifacts after post-processing with GL_RGBA8.
When i use GL_RGBA16F_ARB the banding is fixed, but the X800 does not support that.
Any idea what the correct check is?