RE: [Algorithms] Generating mip maps for normal maps

[Charles B. <cb...@cb...>]

Seems to me that it might work well to just randomly sub-sample normal
maps rather than doing any filtering at all !

So, to generate mip level N from level N-1 ;

at pixel x,y
look at source pixel 2x,2y
do a gaussian random in x and y with an sdev of 1 to offset in the source
take that pixel


----------------------------------------------------
Charles Bloom    cb...@cb...    www.cbloom.com