'use strict'; var Extensions = require('../extensions/Extensions.js'); var BlendModeFilter = require('../filters/blend-modes/BlendModeFilter.js'); "use strict"; class DifferenceBlend extends BlendModeFilter.BlendModeFilter { constructor() { super({ gl: { functions: ` vec3 blendDifference(vec3 base, vec3 blend, float opacity) { return (abs(blend - base) * opacity + base * (1.0 - opacity)); } `, main: ` finalColor = vec4(blendDifference(back.rgb, front.rgb,front.a), blendedAlpha) * uBlend; ` }, gpu: { functions: ` fn blendDifference(base:vec3, blend:vec3, opacity:f32) -> vec3 { return (abs(blend - base) * opacity + base * (1.0 - opacity)); } `, main: ` out = vec4(blendDifference(back.rgb, front.rgb, front.a), blendedAlpha) * blendUniforms.uBlend; ` } }); } } /** @ignore */ DifferenceBlend.extension = { name: "difference", type: Extensions.ExtensionType.BlendMode }; exports.DifferenceBlend = DifferenceBlend; //# sourceMappingURL=DifferenceBlend.js.map