On Monday 07 February 2005 11:21, Lourens Veen wrote: > Oh, and a remark: I just checked and nVidia's 16-bit framebuffer > format (which is also used in OpenEXR, that's where I checked) uses 1 > sign bit, 5 bits exponent and 10 bits mantissa. This almost-13-bit > reciprocal will probably also be good enough for a floating point > (High Dynamic Range) framebuffer...
I have strong doubts that 13 bits is enough precision for the reciprocal. I think 16 bits is barely enough. I'm not in a position to quantify that yet, though. Regards, Daniel _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
