Initial commit

HTML/ThreeJS/node_modules/three/examples/js/shaders/SepiaShader.js

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+( function () {
+
+	/**
+ * Sepia tone shader
+ * based on glfx.js sepia shader
+ * https://github.com/evanw/glfx.js
+ */
+	const SepiaShader = {
+		uniforms: {
+			'tDiffuse': {
+				value: null
+			},
+			'amount': {
+				value: 1.0
+			}
+		},
+		vertexShader:
+  /* glsl */
+  `
+
+		varying vec2 vUv;
+
+		void main() {
+
+			vUv = uv;
+			gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
+
+		}`,
+		fragmentShader:
+  /* glsl */
+  `
+
+		uniform float amount;
+
+		uniform sampler2D tDiffuse;
+
+		varying vec2 vUv;
+
+		void main() {
+
+			vec4 color = texture2D( tDiffuse, vUv );
+			vec3 c = color.rgb;
+
+			color.r = dot( c, vec3( 1.0 - 0.607 * amount, 0.769 * amount, 0.189 * amount ) );
+			color.g = dot( c, vec3( 0.349 * amount, 1.0 - 0.314 * amount, 0.168 * amount ) );
+			color.b = dot( c, vec3( 0.272 * amount, 0.534 * amount, 1.0 - 0.869 * amount ) );
+
+			gl_FragColor = vec4( min( vec3( 1.0 ), color.rgb ), color.a );
+
+		}`
+	};
+
+	THREE.SepiaShader = SepiaShader;
+
+} )();