webvr js meetup initial commit

node_modules/three/examples/js/shaders/BlendShader.js

@@ -0,0 +1,51 @@
+/**
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * Blend two textures
+ */
+
+THREE.BlendShader = {
+
+	uniforms: {
+
+		"tDiffuse1": { value: null },
+		"tDiffuse2": { value: null },
+		"mixRatio":  { value: 0.5 },
+		"opacity":   { value: 1.0 }
+
+	},
+
+	vertexShader: [
+
+		"varying vec2 vUv;",
+
+		"void main() {",
+
+			"vUv = uv;",
+			"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
+
+		"}"
+
+	].join( "\n" ),
+
+	fragmentShader: [
+
+		"uniform float opacity;",
+		"uniform float mixRatio;",
+
+		"uniform sampler2D tDiffuse1;",
+		"uniform sampler2D tDiffuse2;",
+
+		"varying vec2 vUv;",
+
+		"void main() {",
+
+			"vec4 texel1 = texture2D( tDiffuse1, vUv );",
+			"vec4 texel2 = texture2D( tDiffuse2, vUv );",
+			"gl_FragColor = opacity * mix( texel1, texel2, mixRatio );",
+
+		"}"
+
+	].join( "\n" )
+
+};