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