Use a smaller support texture for the FFT.
authorSteinar H. Gunderson <sgunderson@bigfoot.com>
Sat, 22 Mar 2014 16:09:36 +0000 (17:09 +0100)
committerSteinar H. Gunderson <sgunderson@bigfoot.com>
Sat, 22 Mar 2014 16:09:36 +0000 (17:09 +0100)
commitc2e19c0fb1952bb7f91ac9ce3b4d25f06b6d2ad6
treeecb54021c5c34863dd3341c1cc31d5f732281ddb
parentc4456876eecf167e515cbdd1e8ac6405905f87e4
Use a smaller support texture for the FFT.

Many of the rows in the support texture are exactly the same,
so don't store the duplicates; gives a small performance boost.
In a sense, this is exactly the same property that GPUwave uses
with drawing multiple quads at the lower level.
fft_pass_effect.cpp