mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-07-08 19:50:43 +02:00
140 lines
2.8 KiB
JavaScript
Executable File
140 lines
2.8 KiB
JavaScript
Executable File
/**
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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 pixelRatio = renderer.getPixelRatio();
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var width = Math.floor( renderer.context.canvas.width / pixelRatio ) || 1;
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var height = Math.floor( renderer.context.canvas.height / pixelRatio ) || 1;
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var parameters = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat, stencilBuffer: false };
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renderTarget = new THREE.WebGLRenderTarget( width, height, parameters );
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}
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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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this.passes = [];
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if ( THREE.CopyShader === undefined )
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console.error( "THREE.EffectComposer relies on THREE.CopyShader" );
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this.copyPass = new THREE.ShaderPass( THREE.CopyShader );
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};
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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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},
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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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render: function ( delta ) {
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this.writeBuffer = this.renderTarget1;
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this.readBuffer = this.renderTarget2;
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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 ) continue;
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pass.render( this.renderer, this.writeBuffer, this.readBuffer, delta, maskActive );
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if ( pass.needsSwap ) {
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if ( maskActive ) {
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var context = this.renderer.context;
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context.stencilFunc( context.NOTEQUAL, 1, 0xffffffff );
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this.copyPass.render( this.renderer, this.writeBuffer, this.readBuffer, delta );
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context.stencilFunc( context.EQUAL, 1, 0xffffffff );
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}
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this.swapBuffers();
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}
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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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reset: function ( renderTarget ) {
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if ( renderTarget === undefined ) {
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renderTarget = this.renderTarget1.clone();
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var pixelRatio = this.renderer.getPixelRatio();
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renderTarget.width = Math.floor( this.renderer.context.canvas.width / pixelRatio );
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renderTarget.height = Math.floor( this.renderer.context.canvas.height / pixelRatio );
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}
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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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var renderTarget = this.renderTarget1.clone();
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renderTarget.width = width;
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renderTarget.height = height;
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this.reset( renderTarget );
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}
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};
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