inspirit/GPUImage — pull request #1 by katopz (2012-06-05 04:51:30+00:00)
Title: directly assign dot product to ft0

should save some GPU time.
not sure this right just refer to http://http.developer.nvidia.com/GPUGems/gpugems_ch22.html

fyi, i'm noob in this field (just trying to get in), please feel free to hit me hard if i'm wrong ;)