80 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			80 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import {
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	HalfFloatType,
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	NoBlending,
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	ShaderMaterial,
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	UniformsUtils,
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	WebGLRenderTarget
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} from 'three';
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import { Pass, FullScreenQuad } from './Pass.js';
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import { CopyShader } from '../shaders/CopyShader.js';
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class SavePass extends Pass {
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	constructor( renderTarget ) {
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		super();
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		const shader = CopyShader;
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		this.textureID = 'tDiffuse';
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		this.uniforms = UniformsUtils.clone( shader.uniforms );
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		this.material = new ShaderMaterial( {
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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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			blending: NoBlending
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		} );
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		this.renderTarget = renderTarget;
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		if ( this.renderTarget === undefined ) {
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			this.renderTarget = new WebGLRenderTarget( 1, 1, { type: HalfFloatType } ); // will be resized later
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			this.renderTarget.texture.name = 'SavePass.rt';
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		}
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		this.needsSwap = false;
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		this.fsQuad = new FullScreenQuad( this.material );
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	}
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	render( renderer, writeBuffer, readBuffer/*, deltaTime, 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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		renderer.setRenderTarget( this.renderTarget );
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		if ( this.clear ) renderer.clear();
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		this.fsQuad.render( renderer );
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	}
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	setSize( width, height ) {
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		this.renderTarget.setSize( width, height );
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	}
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	dispose() {
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		this.renderTarget.dispose();
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		this.material.dispose();
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		this.fsQuad.dispose();
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	}
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}
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export { SavePass };
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