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55 lines
819 B
55 lines
819 B
2 years ago
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( function () {
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/**
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* Blend two textures
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*/
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const BlendShader = {
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uniforms: {
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'tDiffuse1': {
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value: null
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},
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'tDiffuse2': {
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value: null
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},
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'mixRatio': {
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value: 0.5
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},
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'opacity': {
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value: 1.0
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}
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},
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vertexShader: /* glsl */`
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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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fragmentShader: /* glsl */`
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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 = mix( texel1, texel2, mixRatio );
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gl_FragColor.a *= opacity;
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}`
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};
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THREE.BlendShader = BlendShader;
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} )();
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