0d14e5a379
Needs a lot of cleanup. Data has been de-duplicated, and where identical copies existed, one of them has been replaced with a symlink. Some files have been excluded, such as binaries, installers and debug dumps. Some of that may still be present.
72 lines
No EOL
2 KiB
GLSL
72 lines
No EOL
2 KiB
GLSL
float aspect(vec2 v) {
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return v.x / v.y;
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}
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vec3 indexedTexture(float i) {
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vec2 uv = _position.xy;
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uv += 0.5;
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uv.y = 1.0 - uv.y;
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float targetAspect = iWorldScale.x / iWorldScale.y;
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float sourceAspect = 1.0;
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if (i > 3.0) {
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sourceAspect = aspect(iChannelResolution[0].xy);
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} else if (i > 2.0) {
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sourceAspect = aspect(iChannelResolution[1].xy);
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} else if (i > 1.0) {
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sourceAspect = aspect(iChannelResolution[2].xy);
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} else {
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sourceAspect = aspect(iChannelResolution[3].xy);
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}
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float aspectCorrection = sourceAspect / targetAspect;
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if (aspectCorrection > 1.0) {
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float offset = aspectCorrection - 1.0;
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float halfOffset = offset / 2.0;
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uv.y -= halfOffset;
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uv.y *= aspectCorrection;
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} else {
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float offset = 1.0 - aspectCorrection;
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float halfOffset = offset / 2.0;
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uv.x -= halfOffset;
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uv.x /= aspectCorrection;
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}
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if (any(lessThan(uv, vec2(0.0)))) {
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return vec3(0.0);
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}
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if (any(greaterThan(uv, vec2(1.0)))) {
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return vec3(0.0);
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}
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vec4 color;
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if (i > 3.0) {
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color = texture(iChannel0, uv);
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} else if (i > 2.0) {
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color = texture(iChannel1, uv);
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} else if (i > 1.0) {
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color = texture(iChannel2, uv);
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} else {
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color = texture(iChannel3, uv);
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}
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return color.rgb * max(0.5, sourceAspect) * max(0.9, fract(iWorldPosition.x));
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}
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float getProceduralColors(inout vec3 diffuse, inout vec3 specular, inout float shininess) {
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if (_position.z > -0.49) {
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discard;
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}
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float t = mod(iGlobalTime / 5.0, 4.0);
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float f = fract(t);
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vec3 color = indexedTexture(6.0); // t
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if (f > 0.9) {
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t = mod(t + 1.0, 4.0);
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vec3 color2 = indexedTexture(t);
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color = mix(color, color2, smoothstep(0.9, 1.0, f));
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}
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specular = color;
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return 1.0;
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} |