30 lines
798 B
JavaScript
30 lines
798 B
JavaScript
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/**
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* Swirling rainbow animation coloration shader
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*/
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class SwirlingRainbowColorationShader extends AdaptiveColorationShader {
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/** @override */
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static forceDefaultColor = true;
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/** @override */
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static fragmentShader = `
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${this.SHADER_HEADER}
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${this.HSB2RGB}
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${this.PERCEIVED_BRIGHTNESS}
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void main() {
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${this.FRAGMENT_BEGIN}
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float intens = intensity * 0.1;
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vec2 nuv = vUvs * 2.0 - 1.0;
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vec2 puv = vec2(atan(nuv.x, nuv.y) * INVTWOPI + 0.5, length(nuv));
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vec3 rainbow = hsb2rgb(vec3(puv.x + puv.y - time * 0.2, 1.0, 1.0));
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finalColor = mix(color, rainbow, smoothstep(0.0, 1.5 - intens, dist))
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* (1.0 - dist * dist * dist);
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${this.COLORATION_TECHNIQUES}
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${this.ADJUSTMENTS}
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${this.FALLOFF}
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${this.FRAGMENT_END}
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}`;
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}
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