shader 汇编

mad ro.xy v1.xyxx, l(1.000000,-1.000000,0.0000,0.000000), l(0.000000,1.000000,0.0000,0.000000)

这个东西真让我困惑

好吧 是  l(1.000000,-1.000000,0.0000,0.000000)×v1.xyxx+l(0.000000,1.000000,0.0000,0.000000)-》ro.xy

viewpor不知道有没有 y -y这个问题

感觉是viewport 本来是这样的 in ps4          

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现在变成

in

 d3d11

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shader 汇编

原文：http://www.cnblogs.com/minggoddess/p/4228721.html