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annotate shaders/default.f.glsl @ 921:2be771c4dfbd

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After reviewing the results of my test ROM again it seems pretty clear that the VBlank flag gets set at the same time as the vcounter changes
author Michael Pavone <pavone@retrodev.com>
date Tue, 26 Jan 2016 19:23:10 -0800
parents 0820a71b80f3
children b1147418254a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #version 110
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2
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3 uniform sampler2D textures[2];
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4
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5 varying vec2 texcoord;
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6
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7 void main()
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8 {
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9 gl_FragColor = mix(
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10 texture2D(textures[0], texcoord),
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11 texture2D(textures[1], vec2(texcoord.x, texcoord.y - 1.0/512.0)),
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12 sin((texcoord.y * 512.0 - 0.75) * 3.14159265359) / 2.0 + 0.5
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13 );
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14 }