82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
/**
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* Bewitching Wave animation illumination shader
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*/
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class BewitchingWaveIlluminationShader extends AdaptiveIlluminationShader {
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static fragmentShader = `
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${this.SHADER_HEADER}
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${this.PRNG}
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${this.NOISE}
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${this.FBM(4, 1.0)}
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${this.PERCEIVED_BRIGHTNESS}
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// Transform UV
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vec2 transform(in vec2 uv, in float dist) {
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float t = time * 0.25;
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mat2 rotmat = mat2(cos(t), -sin(t), sin(t), cos(t));
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mat2 scalemat = mat2(2.5, 0.0, 0.0, 2.5);
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uv -= vec2(0.5);
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uv *= rotmat * scalemat;
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uv += vec2(0.5);
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return uv;
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}
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float bwave(in float dist) {
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vec2 uv = transform(vUvs, dist);
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float motion = fbm(uv + time * 0.25);
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float distortion = mix(1.0, motion, clamp(1.0 - dist, 0.0, 1.0));
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float sinWave = 0.5 * (sin(-time * 6.0 + dist * 10.0 * intensity * distortion) + 1.0);
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return 0.3 * sinWave + 0.8;
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}
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void main() {
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${this.FRAGMENT_BEGIN}
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${this.TRANSITION}
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finalColor *= bwave(dist);
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${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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/* -------------------------------------------- */
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/**
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* Bewitching Wave animation coloration shader
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*/
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class BewitchingWaveColorationShader extends AdaptiveColorationShader {
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static fragmentShader = `
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${this.SHADER_HEADER}
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${this.PRNG}
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${this.NOISE}
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${this.FBM(4, 1.0)}
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${this.PERCEIVED_BRIGHTNESS}
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// Transform UV
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vec2 transform(in vec2 uv, in float dist) {
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float t = time * 0.25;
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mat2 rotmat = mat2(cos(t), -sin(t), sin(t), cos(t));
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mat2 scalemat = mat2(2.5, 0.0, 0.0, 2.5);
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uv -= vec2(0.5);
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uv *= rotmat * scalemat;
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uv += vec2(0.5);
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return uv;
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}
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float bwave(in float dist) {
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vec2 uv = transform(vUvs, dist);
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float motion = fbm(uv + time * 0.25);
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float distortion = mix(1.0, motion, clamp(1.0 - dist, 0.0, 1.0));
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float sinWave = 0.5 * (sin(-time * 6.0 + dist * 10.0 * intensity * distortion) + 1.0);
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return 0.55 * sinWave + 0.8;
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}
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void main() {
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${this.FRAGMENT_BEGIN}
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finalColor = color * bwave(dist) * colorationAlpha;
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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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