webvr js meetup initial commit

node_modules/three/examples/js/shaders/MirrorShader.js

@@ -0,0 +1,58 @@
+/**
+ * @author felixturner / http://airtight.cc/
+ *
+ * Mirror Shader
+ * Copies half the input to the other half
+ *
+ * side: side of input to mirror (0 = left, 1 = right, 2 = top, 3 = bottom)
+ */
+
+THREE.MirrorShader = {
+
+	uniforms: {
+
+		"tDiffuse": { value: null },
+		"side":     { value: 1 }
+
+	},
+
+	vertexShader: [
+
+		"varying vec2 vUv;",
+
+		"void main() {",
+
+			"vUv = uv;",
+			"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
+
+		"}"
+
+	].join( "\n" ),
+
+	fragmentShader: [
+
+		"uniform sampler2D tDiffuse;",
+		"uniform int side;",
+		
+		"varying vec2 vUv;",
+
+		"void main() {",
+
+			"vec2 p = vUv;",
+			"if (side == 0){",
+				"if (p.x > 0.5) p.x = 1.0 - p.x;",
+			"}else if (side == 1){",
+				"if (p.x < 0.5) p.x = 1.0 - p.x;",
+			"}else if (side == 2){",
+				"if (p.y < 0.5) p.y = 1.0 - p.y;",
+			"}else if (side == 3){",
+				"if (p.y > 0.5) p.y = 1.0 - p.y;",
+			"} ",
+			"vec4 color = texture2D(tDiffuse, p);",
+			"gl_FragColor = color;",
+
+		"}"
+
+	].join( "\n" )
+
+};