three-shaders/shaders/CopyShader.js

three-shaders - a library of shaders included with Three.js library

/**
 * @author alteredq / http://alteredqualia.com/
 *
 * Full-screen textured quad shader
 */

function CopyShader() {

	return {

	uniforms: {

		tDiffuse: { value: null },
		opacity:  { value: 1.0 }

	},

	vertexShader: `

		varying vec2 vUv;

		void main() {

			vUv = uv;
			gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );

		}

	`,

	fragmentShader: `

		uniform float opacity;

		uniform sampler2D tDiffuse;

		varying vec2 vUv;

		void main() {

			vec4 texel = texture2D( tDiffuse, vUv );
			gl_FragColor = opacity * texel;

		}

	`
	}

};

module.exports = CopyShader;