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