64 lines
2.0 KiB
JavaScript
64 lines
2.0 KiB
JavaScript
'use strict';
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var Extensions = require('../extensions/Extensions.js');
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var BlendModeFilter = require('../filters/blend-modes/BlendModeFilter.js');
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"use strict";
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class DivideBlend extends BlendModeFilter.BlendModeFilter {
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constructor() {
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super({
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gl: {
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functions: `
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float divide(float base, float blend)
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{
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return (blend > 0.0) ? clamp(base / blend, 0.0, 1.0) : 1.0;
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}
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vec3 blendDivide(vec3 base, vec3 blend, float opacity)
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{
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vec3 blended = vec3(
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divide(base.r, blend.r),
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divide(base.g, blend.g),
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divide(base.b, blend.b)
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);
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return (blended * opacity + base * (1.0 - opacity));
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}
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`,
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main: `
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finalColor = vec4(blendDivide(back.rgb, front.rgb,front.a), blendedAlpha) * uBlend;
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`
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},
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gpu: {
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functions: `
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fn divide(base: f32, blend: f32) -> f32
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{
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return select(1.0, clamp(base / blend, 0.0, 1.0), blend > 0.0);
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}
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fn blendDivide(base: vec3<f32>, blend: vec3<f32>, opacity: f32) -> vec3<f32>
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{
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let blended = vec3<f32>(
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divide(base.r, blend.r),
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divide(base.g, blend.g),
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divide(base.b, blend.b)
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);
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return (blended * opacity + base * (1.0 - opacity));
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}
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`,
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main: `
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out = vec4<f32>(blendDivide(back.rgb, front.rgb, front.a), blendedAlpha) * blendUniforms.uBlend;
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`
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}
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});
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}
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}
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/** @ignore */
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DivideBlend.extension = {
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name: "divide",
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type: Extensions.ExtensionType.BlendMode
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};
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exports.DivideBlend = DivideBlend;
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//# sourceMappingURL=DivideBlend.js.map
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