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public/sdk/three/jsm/postprocessing/HalftonePass.js

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+import {
+	ShaderMaterial,
+	UniformsUtils
+} from 'three';
+import { Pass, FullScreenQuad } from './Pass.js';
+import { HalftoneShader } from '../shaders/HalftoneShader.js';
+
+/**
+ * RGB Halftone pass for three.js effects composer. Requires HalftoneShader.
+ */
+
+class HalftonePass extends Pass {
+
+	constructor( width, height, params ) {
+
+		super();
+
+	 	this.uniforms = UniformsUtils.clone( HalftoneShader.uniforms );
+	 	this.material = new ShaderMaterial( {
+	 		uniforms: this.uniforms,
+	 		fragmentShader: HalftoneShader.fragmentShader,
+	 		vertexShader: HalftoneShader.vertexShader
+	 	} );
+
+		// set params
+		this.uniforms.width.value = width;
+		this.uniforms.height.value = height;
+
+		for ( const key in params ) {
+
+			if ( params.hasOwnProperty( key ) && this.uniforms.hasOwnProperty( key ) ) {
+
+				this.uniforms[ key ].value = params[ key ];
+
+			}
+
+		}
+
+		this.fsQuad = new FullScreenQuad( this.material );
+
+	}
+
+	render( renderer, writeBuffer, readBuffer/*, deltaTime, maskActive*/ ) {
+
+ 		this.material.uniforms[ 'tDiffuse' ].value = readBuffer.texture;
+
+ 		if ( this.renderToScreen ) {
+
+ 			renderer.setRenderTarget( null );
+ 			this.fsQuad.render( renderer );
+
+		} else {
+
+ 			renderer.setRenderTarget( writeBuffer );
+ 			if ( this.clear ) renderer.clear();
+			this.fsQuad.render( renderer );
+
+		}
+
+ 	}
+
+ 	setSize( width, height ) {
+
+ 		this.uniforms.width.value = width;
+ 		this.uniforms.height.value = height;
+
+ 	}
+
+	dispose() {
+
+		this.material.dispose();
+
+		this.fsQuad.dispose();
+
+	}
+
+}
+
+export { HalftonePass };