Am I reading this wrong, kinda shocked openGL has had only just got these. Havent cards for years and DirectX since 9 supported 32 bit textures. Thats an eternity in technology terms.[/quote:1e8ddf6ca0]
I think they mean 32 bit floating point textures, not 32bit RGBA textures (OpenGL always supported these IIRC). So instead of a byte each for RGBA you use a 32 bit floating point value.