mirror of https://github.com/bsnes-emu/bsnes.git
19 lines
469 B
Plaintext
19 lines
469 B
Plaintext
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<?xml version="1.0" encoding="UTF-8"?>
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<shader language="GLSL">
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<fragment><![CDATA[
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uniform sampler2D rubyTexture;
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#define distortion 0.2
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vec2 barrelDistortion(vec2 coord) {
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vec2 cc = coord - 0.5;
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float dist = dot(cc, cc);
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return coord + cc * (dist + distortion * dist * dist) * distortion;
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}
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void main(void) {
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gl_FragColor = texture2D(rubyTexture, barrelDistortion(gl_TexCoord[0].xy));
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}
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]]></fragment>
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</shader>
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