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✏️ Editing: glitch-EffectComposer.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.EffectComposer = function ( renderer, renderTarget ) {

this.renderer = renderer;

if ( renderTarget === undefined ) {

var width = window.innerWidth || 1;
		var height = window.innerHeight || 1;
		var parameters = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat, stencilBuffer: false };

renderTarget = new THREE.WebGLRenderTarget( width, height, parameters );

}

this.renderTarget1 = renderTarget;
	this.renderTarget2 = renderTarget.clone();

this.writeBuffer = this.renderTarget1;
	this.readBuffer = this.renderTarget2;

this.passes = [];

if ( THREE.CopyShader === undefined )
		console.error( "THREE.EffectComposer relies on THREE.CopyShader" );

this.copyPass = new THREE.ShaderPass( THREE.CopyShader );

};

THREE.EffectComposer.prototype = {

swapBuffers: function() {

var tmp = this.readBuffer;
		this.readBuffer = this.writeBuffer;
		this.writeBuffer = tmp;

addPass: function ( pass ) {

this.passes.push( pass );

insertPass: function ( pass, index ) {

this.passes.splice( index, 0, pass );

render: function ( delta ) {

this.writeBuffer = this.renderTarget1;
		this.readBuffer = this.renderTarget2;

var maskActive = false;

var pass, i, il = this.passes.length;

for ( i = 0; i < il; i ++ ) {

pass = this.passes[ i ];

if ( !pass.enabled ) continue;

pass.render( this.renderer, this.writeBuffer, this.readBuffer, delta, maskActive );

if ( pass.needsSwap ) {

if ( maskActive ) {

var context = this.renderer.context;

context.stencilFunc( context.NOTEQUAL, 1, 0xffffffff );

this.copyPass.render( this.renderer, this.writeBuffer, this.readBuffer, delta );

context.stencilFunc( context.EQUAL, 1, 0xffffffff );

}

this.swapBuffers();

}

if ( pass instanceof THREE.MaskPass ) {

maskActive = true;

} else if ( pass instanceof THREE.ClearMaskPass ) {

maskActive = false;

}

reset: function ( renderTarget ) {

if ( renderTarget === undefined ) {

renderTarget = this.renderTarget1.clone();

renderTarget.width = window.innerWidth;
			renderTarget.height = window.innerHeight;

}

this.renderTarget1 = renderTarget;
		this.renderTarget2 = renderTarget.clone();

this.writeBuffer = this.renderTarget1;
		this.readBuffer = this.renderTarget2;

setSize: function ( width, height ) {

var renderTarget = this.renderTarget1.clone();

renderTarget.width = width;
		renderTarget.height = height;

this.reset( renderTarget );

}

};

MR SKB