I am trying to use a 2D floating point texture on my GF6600(drivers 76.41 beta). When using the GL_RGBA32F_ARB format, my fragment shader outputs black only, I’ve been careful about specifying GL_NEAREST in my texture parameters as linear interpolation isn’t supported by the hardware for 32 bits floats.
So I deduced that fragment shaders don’t seem to support 32bits floats(anyone to confirm this?).
I am trying to specify it as a 16 bit float texture but is there a library or else for making the conversion?
Anyone knows where to find the spec of nvidia 16 bit floats?(ARB_texture_float specifies two possibilities)
Thanks in advance, Jeff.