Initial commit

js/ShaderPass.js

@@ -0,0 +1,67 @@
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+THREE.ShaderPass = function ( shader, textureID ) {
+
+	THREE.Pass.call( this );
+
+	this.textureID = ( textureID !== undefined ) ? textureID : "tDiffuse";
+
+	if ( shader instanceof THREE.ShaderMaterial ) {
+
+		this.uniforms = shader.uniforms;
+
+		this.material = shader;
+
+	} else if ( shader ) {
+
+		this.uniforms = THREE.UniformsUtils.clone( shader.uniforms );
+
+		this.material = new THREE.ShaderMaterial( {
+
+			defines: Object.assign( {}, shader.defines ),
+			uniforms: this.uniforms,
+			vertexShader: shader.vertexShader,
+			fragmentShader: shader.fragmentShader
+
+		} );
+
+	}
+
+	this.camera = new THREE.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
+	this.scene = new THREE.Scene();
+
+	this.quad = new THREE.Mesh( new THREE.PlaneBufferGeometry( 2, 2 ), null );
+	this.quad.frustumCulled = false; // Avoid getting clipped
+	this.scene.add( this.quad );
+
+};
+
+THREE.ShaderPass.prototype = Object.assign( Object.create( THREE.Pass.prototype ), {
+
+	constructor: THREE.ShaderPass,
+
+	render: function( renderer, writeBuffer, readBuffer, delta, maskActive ) {
+
+		if ( this.uniforms[ this.textureID ] ) {
+
+			this.uniforms[ this.textureID ].value = readBuffer.texture;
+
+		}
+
+		this.quad.material = this.material;
+
+		if ( this.renderToScreen ) {
+
+			renderer.render( this.scene, this.camera );
+
+		} else {
+
+			renderer.render( this.scene, this.camera, writeBuffer, this.clear );
+
+		}
+
+	}
+
+} );