Originally posted by: munky
Originally posted by: Gstanfor
The patent in question, known as U.S. patent 6,650,327, was filed all the way back in June 1998 and covers a "display system having floating point rasterization and floating point framebuffering."
After reading the patent, that has got to be one of the most BS patents ever created. First of all, floating point vertex data and primitives have absolutely nothing to do with a floating point frame buffer. So, in effect the patent claims to have invented the whole floating point pipeline, beginning with FP vertex data and ending with FP color values. Not only has vertex data been floating point for as long as I can remember (well before 1998...), but the DX9 specs also state that FP24 minimum presicion must be used throughout the pipeline, and the patent claims to have the right to anything going on in the pipeline using FP values, even when not directly related to a FP frame buffer. In addition, OpenEXR is just a spec for FP color blending, it still technically falls "within" the scope of the patent, and includes not only the x1k cards, but also the nv40 and its derivatives, as well as the r300 and its derivatives.
Has anyone pattented the wheel yet? Cuz they could sure make a fortune in lawsuits right there...