| |
| |
| |
| |
| |
| |
|
|
| THREE.LuminosityHighPassShader = { |
|
|
| shaderID: "luminosityHighPass", |
|
|
| uniforms: { |
|
|
| "tDiffuse": { type: "t", value: null }, |
| "luminosityThreshold": { type: "f", value: 1.0 }, |
| "smoothWidth": { type: "f", value: 1.0 }, |
| "defaultColor": { type: "c", value: new THREE.Color( 0x000000 ) }, |
| "defaultOpacity": { type: "f", value: 0.0 } |
|
|
| }, |
|
|
| vertexShader: [ |
|
|
| "varying vec2 vUv;", |
|
|
| "void main() {", |
|
|
| "vUv = uv;", |
|
|
| "gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );", |
|
|
| "}" |
|
|
| ].join("\n"), |
|
|
| fragmentShader: [ |
|
|
| "uniform sampler2D tDiffuse;", |
| "uniform vec3 defaultColor;", |
| "uniform float defaultOpacity;", |
| "uniform float luminosityThreshold;", |
| "uniform float smoothWidth;", |
|
|
| "varying vec2 vUv;", |
|
|
| "void main() {", |
|
|
| "vec4 texel = texture2D( tDiffuse, vUv );", |
|
|
| "vec3 luma = vec3( 0.299, 0.587, 0.114 );", |
|
|
| "float v = dot( texel.xyz, luma );", |
|
|
| "vec4 outputColor = vec4( defaultColor.rgb, defaultOpacity );", |
|
|
| "float alpha = smoothstep( luminosityThreshold, luminosityThreshold + smoothWidth, v );", |
|
|
| "gl_FragColor = mix( outputColor, texel, alpha );", |
|
|
| "}" |
|
|
| ].join("\n") |
|
|
| }; |
|
|
