12 lines
298 B
Forth
12 lines
298 B
Forth
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void mainImage( out vec4 fragColor, in vec2 fragCoord )
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{
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// letterbox
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if( abs(2.*fragCoord.y-iResolution.y) > iResolution.x * 0.42 ) {
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fragColor = vec4( 0., 0., 0., 1. );
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return;
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}
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vec2 uv = fragCoord.xy / iResolution.xy;
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fragColor = texture(iChannel0, uv);
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}
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