diff shaders/crt.f.glsl @ 1441:8a3d3bb2cd08

Clear display in SDL2 renderer before doing the texture copy. This gets rid of the artifacts noted in ticket:29
author Michael Pavone <pavone@retrodev.com>
date Thu, 24 Aug 2017 19:40:53 -0700
parents 7da675d0c512
children f3cca4b3f17a
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