mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-07-08 19:50:43 +02:00
116 lines
3.4 KiB
JavaScript
Executable File
116 lines
3.4 KiB
JavaScript
Executable File
/**
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* @author alteredq / http://alteredqualia.com/
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*/
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THREE.BloomPass = function ( strength, kernelSize, sigma, resolution ) {
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strength = ( strength !== undefined ) ? strength : 1;
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kernelSize = ( kernelSize !== undefined ) ? kernelSize : 25;
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sigma = ( sigma !== undefined ) ? sigma : 4.0;
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resolution = ( resolution !== undefined ) ? resolution : 256;
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// render targets
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var pars = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat };
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this.renderTargetX = new THREE.WebGLRenderTarget( resolution, resolution, pars );
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this.renderTargetY = new THREE.WebGLRenderTarget( resolution, resolution, pars );
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// copy material
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if ( THREE.CopyShader === undefined )
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console.error( "THREE.BloomPass relies on THREE.CopyShader" );
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var copyShader = THREE.CopyShader;
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this.copyUniforms = THREE.UniformsUtils.clone( copyShader.uniforms );
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this.copyUniforms[ "opacity" ].value = strength;
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this.materialCopy = new THREE.ShaderMaterial( {
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uniforms: this.copyUniforms,
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vertexShader: copyShader.vertexShader,
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fragmentShader: copyShader.fragmentShader,
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blending: THREE.AdditiveBlending,
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transparent: true
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} );
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// convolution material
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if ( THREE.ConvolutionShader === undefined )
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console.error( "THREE.BloomPass relies on THREE.ConvolutionShader" );
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var convolutionShader = THREE.ConvolutionShader;
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this.convolutionUniforms = THREE.UniformsUtils.clone( convolutionShader.uniforms );
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this.convolutionUniforms[ "uImageIncrement" ].value = THREE.BloomPass.blurX;
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this.convolutionUniforms[ "cKernel" ].value = THREE.ConvolutionShader.buildKernel( sigma );
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this.materialConvolution = new THREE.ShaderMaterial( {
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uniforms: this.convolutionUniforms,
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vertexShader: convolutionShader.vertexShader,
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fragmentShader: convolutionShader.fragmentShader,
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defines: {
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"KERNEL_SIZE_FLOAT": kernelSize.toFixed( 1 ),
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"KERNEL_SIZE_INT": kernelSize.toFixed( 0 )
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}
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} );
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this.enabled = true;
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this.needsSwap = false;
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this.clear = false;
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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.scene.add( this.quad );
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};
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THREE.BloomPass.prototype = {
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render: function ( renderer, writeBuffer, readBuffer, delta, maskActive ) {
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if ( maskActive ) renderer.context.disable( renderer.context.STENCIL_TEST );
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// Render quad with blured scene into texture (convolution pass 1)
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this.quad.material = this.materialConvolution;
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this.convolutionUniforms[ "tDiffuse" ].value = readBuffer;
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this.convolutionUniforms[ "uImageIncrement" ].value = THREE.BloomPass.blurX;
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renderer.render( this.scene, this.camera, this.renderTargetX, true );
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// Render quad with blured scene into texture (convolution pass 2)
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this.convolutionUniforms[ "tDiffuse" ].value = this.renderTargetX;
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this.convolutionUniforms[ "uImageIncrement" ].value = THREE.BloomPass.blurY;
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renderer.render( this.scene, this.camera, this.renderTargetY, true );
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// Render original scene with superimposed blur to texture
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this.quad.material = this.materialCopy;
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this.copyUniforms[ "tDiffuse" ].value = this.renderTargetY;
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if ( maskActive ) renderer.context.enable( renderer.context.STENCIL_TEST );
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renderer.render( this.scene, this.camera, readBuffer, this.clear );
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}
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};
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THREE.BloomPass.blurX = new THREE.Vector2( 0.001953125, 0.0 );
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THREE.BloomPass.blurY = new THREE.Vector2( 0.0, 0.001953125 );
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