[cairo] alpha blending
Lawrence D'Oliveiro
ldo at geek-central.gen.nz
Wed Mar 25 11:54:51 PDT 2015
On Wed, 25 Mar 2015 11:24:44 -0400, James Cloos wrote:
> It advocates: blend(x,y) = sqrt((x^2+y^2)/2)
Why?
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