Jess Peter f3d144bf0e
Convert window render sizes to floats
GLSL 1.10 is typesafe ([PDF specs](https://www.khronos.org/registry/OpenGL/specs/gl/GLSLangSpec.1.10.pdf), page 22), so this shader will not load properly during build.

It's not a super important change, but I came across it while playing with the examples on my pi.
2018-07-21 18:56:16 +02:00
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