/**
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* @author alteredq / http://alteredqualia.com/
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*/
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THREE.EffectComposer = function ( renderer, renderTarget ) {
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this.renderer = renderer;
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if ( renderTarget === undefined ) {
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var parameters = {
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minFilter: THREE.LinearFilter,
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magFilter: THREE.LinearFilter,
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format: THREE.RGBAFormat,
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stencilBuffer: false
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};
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var size = renderer.getSize( new THREE.Vector2() );
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this._pixelRatio = renderer.getPixelRatio();
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this._width = size.width;
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this._height = size.height;
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renderTarget = new THREE.WebGLRenderTarget( this._width * this._pixelRatio, this._height * this._pixelRatio, parameters );
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renderTarget.texture.name = 'EffectComposer.rt1';
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} else {
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this._pixelRatio = 1;
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this._width = renderTarget.width;
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this._height = renderTarget.height;
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}
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this.renderTarget1 = renderTarget;
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this.renderTarget2 = renderTarget.clone();
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this.renderTarget2.texture.name = 'EffectComposer.rt2';
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this.writeBuffer = this.renderTarget1;
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this.readBuffer = this.renderTarget2;
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this.renderToScreen = true;
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this.passes = [];
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// dependencies
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if ( THREE.CopyShader === undefined ) {
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console.error( 'THREE.EffectComposer relies on THREE.CopyShader' );
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}
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if ( THREE.ShaderPass === undefined ) {
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console.error( 'THREE.EffectComposer relies on THREE.ShaderPass' );
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}
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this.copyPass = new THREE.ShaderPass( THREE.CopyShader );
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this.clock = new THREE.Clock();
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};
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Object.assign( THREE.EffectComposer.prototype, {
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swapBuffers: function () {
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var tmp = this.readBuffer;
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this.readBuffer = this.writeBuffer;
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this.writeBuffer = tmp;
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},
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addPass: function ( pass ) {
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this.passes.push( pass );
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pass.setSize( this._width * this._pixelRatio, this._height * this._pixelRatio );
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},
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insertPass: function ( pass, index ) {
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this.passes.splice( index, 0, pass );
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},
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isLastEnabledPass: function ( passIndex ) {
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for ( var i = passIndex + 1; i < this.passes.length; i ++ ) {
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if ( this.passes[ i ].enabled ) {
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return false;
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}
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}
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return true;
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},
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render: function ( deltaTime ) {
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// deltaTime value is in seconds
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if ( deltaTime === undefined ) {
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deltaTime = this.clock.getDelta();
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}
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var currentRenderTarget = this.renderer.getRenderTarget();
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var maskActive = false;
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var pass, i, il = this.passes.length;
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for ( i = 0; i < il; i ++ ) {
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pass = this.passes[ i ];
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if ( pass.enabled === false ) continue;
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pass.renderToScreen = ( this.renderToScreen && this.isLastEnabledPass( i ) );
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pass.render( this.renderer, this.writeBuffer, this.readBuffer, deltaTime, maskActive );
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if ( pass.needsSwap ) {
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if ( maskActive ) {
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var context = this.renderer.getContext();
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var stencil = this.renderer.state.buffers.stencil;
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//context.stencilFunc( context.NOTEQUAL, 1, 0xffffffff );
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stencil.setFunc( context.NOTEQUAL, 1, 0xffffffff );
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this.copyPass.render( this.renderer, this.writeBuffer, this.readBuffer, deltaTime );
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//context.stencilFunc( context.EQUAL, 1, 0xffffffff );
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stencil.setFunc( context.EQUAL, 1, 0xffffffff );
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}
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this.swapBuffers();
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}
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if ( THREE.MaskPass !== undefined ) {
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if ( pass instanceof THREE.MaskPass ) {
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maskActive = true;
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} else if ( pass instanceof THREE.ClearMaskPass ) {
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maskActive = false;
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}
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}
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}
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this.renderer.setRenderTarget( currentRenderTarget );
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},
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reset: function ( renderTarget ) {
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if ( renderTarget === undefined ) {
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var size = this.renderer.getSize( new THREE.Vector2() );
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this._pixelRatio = this.renderer.getPixelRatio();
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this._width = size.width;
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this._height = size.height;
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renderTarget = this.renderTarget1.clone();
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renderTarget.setSize( this._width * this._pixelRatio, this._height * this._pixelRatio );
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}
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this.renderTarget1.dispose();
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this.renderTarget2.dispose();
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this.renderTarget1 = renderTarget;
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this.renderTarget2 = renderTarget.clone();
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this.writeBuffer = this.renderTarget1;
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this.readBuffer = this.renderTarget2;
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},
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setSize: function ( width, height ) {
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this._width = width;
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this._height = height;
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var effectiveWidth = this._width * this._pixelRatio;
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var effectiveHeight = this._height * this._pixelRatio;
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this.renderTarget1.setSize( effectiveWidth, effectiveHeight );
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this.renderTarget2.setSize( effectiveWidth, effectiveHeight );
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for ( var i = 0; i < this.passes.length; i ++ ) {
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this.passes[ i ].setSize( effectiveWidth, effectiveHeight );
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}
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},
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setPixelRatio: function ( pixelRatio ) {
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this._pixelRatio = pixelRatio;
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this.setSize( this._width, this._height );
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}
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} );
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THREE.Pass = function () {
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// if set to true, the pass is processed by the composer
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this.enabled = true;
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// if set to true, the pass indicates to swap read and write buffer after rendering
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this.needsSwap = true;
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// if set to true, the pass clears its buffer before rendering
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this.clear = false;
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// if set to true, the result of the pass is rendered to screen. This is set automatically by EffectComposer.
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this.renderToScreen = false;
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};
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Object.assign( THREE.Pass.prototype, {
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setSize: function ( /* width, height */ ) {},
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render: function ( /* renderer, writeBuffer, readBuffer, deltaTime, maskActive */ ) {
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console.error( 'THREE.Pass: .render() must be implemented in derived pass.' );
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}
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} );
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// Helper for passes that need to fill the viewport with a single quad.
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THREE.Pass.FullScreenQuad = ( function () {
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var camera = new THREE.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
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var geometry = new THREE.PlaneBufferGeometry( 2, 2 );
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var FullScreenQuad = function ( material ) {
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this._mesh = new THREE.Mesh( geometry, material );
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};
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Object.defineProperty( FullScreenQuad.prototype, 'material', {
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get: function () {
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return this._mesh.material;
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},
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set: function ( value ) {
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this._mesh.material = value;
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}
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} );
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Object.assign( FullScreenQuad.prototype, {
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render: function ( renderer ) {
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renderer.render( this._mesh, camera );
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}
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} );
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return FullScreenQuad;
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} )();
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