@bddh/starling-cutout/cjs/libs/seriously.chroma.js

cutout

"use strict";var e=require("./seriously.js");window,console.info("seriously version: chroma"),e.seriouslyExports.plugin("chroma",{shader:function(e,r){return r.vertex=["precision mediump float;","attribute vec4 position;","attribute vec2 texCoord;","uniform vec2 resolution;","uniform mat4 transform;","varying vec2 vTexCoord;","uniform vec4 screen;","uniform float balance;","varying float screenSat;","varying vec3 screenPrimary;","void main(void) {","\tfloat fmin = min(min(screen.r, screen.g), screen.b);","\tfloat fmax = max(max(screen.r, screen.g), screen.b);","\tfloat secondaryComponents;","\tscreenPrimary = step(fmax, screen.rgb);","\tsecondaryComponents = dot(1.0 - screenPrimary, screen.rgb);","\tscreenSat = fmax - mix(secondaryComponents - fmin, secondaryComponents / 2.0, balance);","\tvec4 screenPosition = vec4(position.xy * resolution / 2.0, position.z, position.w);","\tscreenPosition = transform * screenPosition;","\tgl_Position = screenPosition;","\tgl_Position.xy = screenPosition.xy * 2.0 / resolution;","\tgl_Position.z = screenPosition.z * 2.0 / (resolution.x / resolution.y);","\tvTexCoord = texCoord;","}"].join("\n"),r.fragment=[this.inputs.mask?"#define MASK":"","precision mediump float;","varying vec2 vTexCoord;","uniform sampler2D source;","uniform vec4 screen;","uniform float screenWeight;","uniform float balance;","uniform float clipBlack;","uniform float clipWhite;","uniform bool mask;","varying float screenSat;","varying vec3 screenPrimary;","void main(void) {","\tfloat pixelSat, secondaryComponents;","\tvec4 sourcePixel = texture2D(source, vTexCoord);","\n\t\t\t\t\tif (screen.a == 0.0) {\n\t\t\t\t\t\tgl_FragColor = sourcePixel;\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t","\tfloat fmin = min(min(sourcePixel.r, sourcePixel.g), sourcePixel.b);","\tfloat fmax = max(max(sourcePixel.r, sourcePixel.g), sourcePixel.b);","\tvec3 pixelPrimary = step(fmax, sourcePixel.rgb);","\tsecondaryComponents = dot(1.0 - pixelPrimary, sourcePixel.rgb);","\tpixelSat = fmax - mix(secondaryComponents - fmin, secondaryComponents / 2.0, balance);","\tfloat diffPrimary = dot(abs(pixelPrimary - screenPrimary), vec3(1.0));","\tfloat solid = step(1.0, step(pixelSat, 0.1) + step(fmax, 0.1) + diffPrimary);","\tfloat alpha = max(0.0, 1.0 - pixelSat / screenSat);","\talpha = smoothstep(clipBlack, clipWhite, alpha);","\tvec4 semiTransparentPixel = vec4((sourcePixel.rgb - (1.0 - alpha) * screen.rgb * screenWeight) / max(0.00001, alpha), alpha);","\tvec4 pixel = mix(semiTransparentPixel, sourcePixel, solid);","#ifdef MASK","\tgl_FragColor = vec4(vec3(pixel.a), 1.0);","#else","\tgl_FragColor = pixel;","#endif","}"].join("\n"),r},inPlace:!0,inputs:{source:{type:"image",uniform:"source"},screen:{type:"color",uniform:"screen",defaultValue:[66/255,195/255,31/255,1]},weight:{type:"number",uniform:"screenWeight",defaultValue:1,min:0},balance:{type:"number",uniform:"balance",defaultValue:1,min:0,max:1},clipBlack:{type:"number",uniform:"clipBlack",defaultValue:0,min:0,max:1},clipWhite:{type:"number",uniform:"clipWhite",defaultValue:1,min:0,max:1},mask:{type:"boolean",defaultValue:!1,uniform:"mask",shaderDirty:!0}},title:"Chroma Key",description:""});