text: /**
   * Full-screen textured quad shader
   */
  
  var CopyShader = {
  
  	uniforms: {
  
  		'tDiffuse': { value: null },
  		'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 sampler2D tDiffuse;',
  
  		'varying vec2 vUv;',
  
  		'void main() {',
  
  		'	vec4 texel = texture2D( tDiffuse, vUv );',
  		'	gl_FragColor = opacity * texel;',
  
  		'}'
  
  	].join( '\n' )
  
  };
  
  //export { CopyShader };
  