/**
* @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: 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 );
}
}
} );