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44 lines
835 B
44 lines
835 B
2 years ago
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/**
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* Technicolor Shader
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* Simulates the look of the two-strip technicolor process popular in early 20th century films.
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* More historical info here: http://www.widescreenmuseum.com/oldcolor/technicolor1.htm
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* Demo here: http://charliehoey.com/technicolor_shader/shader_test.html
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*/
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const TechnicolorShader = {
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uniforms: {
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'tDiffuse': { value: null }
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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 sampler2D tDiffuse;
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varying vec2 vUv;
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void main() {
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vec4 tex = texture2D( tDiffuse, vec2( vUv.x, vUv.y ) );
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vec4 newTex = vec4(tex.r, (tex.g + tex.b) * .5, (tex.g + tex.b) * .5, 1.0);
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gl_FragColor = newTex;
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}`
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};
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export { TechnicolorShader };
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