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52 lines
815 B
52 lines
815 B
/**
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* @author alteredq / http://alteredqualia.com/
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*
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* Blend two textures
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*/
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THREE.BlendShader = {
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uniforms: {
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"tDiffuse1": { value: null },
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"tDiffuse2": { value: null },
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"mixRatio": { value: 0.5 },
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"opacity": { value: 1.0 }
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},
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vertexShader: [
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"varying vec2 vUv;",
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"void main() {",
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"vUv = uv;",
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"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
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"}"
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].join( "\n" ),
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fragmentShader: [
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"uniform float opacity;",
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"uniform float mixRatio;",
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"uniform sampler2D tDiffuse1;",
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"uniform sampler2D tDiffuse2;",
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"varying vec2 vUv;",
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"void main() {",
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"vec4 texel1 = texture2D( tDiffuse1, vUv );",
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"vec4 texel2 = texture2D( tDiffuse2, vUv );",
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"gl_FragColor = opacity * mix( texel1, texel2, mixRatio );",
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"}"
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].join( "\n" )
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};
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