Colorwheel.shader.js

(function() {
    define('shaders/ColorWheel.shader', [] , function () {

        return {
          uniforms: {
                time: { type: 'f', value: 0.0 }
          },

          fragmentShader: [
                "uniform float time;",
                "varying vec2 vUv;",

                "void main() {",
                    "vec2 position = -1.0 + 2.0 * vUv;",

                    "float red = abs(tan(position.x * position.y + time / 60.0));",
                    "float green = abs(tan(position.x * position.y + time / 20.0));",
                    "float blue = abs(tan(position.x * position.y + time / 5.0 ));",
                    "gl_FragColor = vec4(red, green, blue, 0.5);",
                "}"].join("\n"),

          vertexShader: [
                "uniform float time;",
                "varying vec2 vUv;",

                "void main() {",
                    "vUv = uv;",
                    "vec3 newPosition = position + normal * vec3(sin(time * 0.2) * 3.0);",
                    "gl_Position = projectionMatrix * modelViewMatrix * vec4(newPosition, 1.0);",
                "}"
            ].join("\n")
        };
    });
})();