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annotate shaders/default.v.glsl @ 1366:c74a2f31ae5f

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Fix regression in horizontal interrupt timing that was breaking the "water" palette swap in the Sonic series and other games
author Michael Pavone <pavone@retrodev.com>
date Mon, 22 May 2017 21:11:13 -0700
parents b1147418254a
children fa9ae059e4d3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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32f053ad9b02 Basic OpenGL rendering is working
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1 #version 110
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2
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3 attribute vec2 pos;
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4 varying vec2 texcoord;
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b1147418254a Overscan is now configurable
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5 uniform float width, height;
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6
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7 void main()
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8 {
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9 gl_Position = vec4(pos, 0.0, 1.0);
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10 texcoord = sign(pos) * vec2(width/1024.0, height/-1024.0) + vec2(width/1024.0, height/1024.0);
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11 }