feat: initialize project with core dependencies and game entry point

node_modules/three/examples/jsm/postprocessing/BloomPass.js

@@ -0,0 +1,274 @@
+import {
+	AdditiveBlending,
+	HalfFloatType,
+	ShaderMaterial,
+	UniformsUtils,
+	Vector2,
+	WebGLRenderTarget
+} from 'three';
+import { Pass, FullScreenQuad } from './Pass.js';
+import { ConvolutionShader } from '../shaders/ConvolutionShader.js';
+
+/**
+ * A pass for a basic Bloom effect.
+ *
+ * {@link UnrealBloomPass} produces a more advanced Bloom but is also
+ * more expensive.
+ *
+ * ```js
+ * const effectBloom = new BloomPass( 0.75 );
+ * composer.addPass( effectBloom );
+ * ```
+ *
+ * @augments Pass
+ * @three_import import { BloomPass } from 'three/addons/postprocessing/BloomPass.js';
+ */
+class BloomPass extends Pass {
+
+	/**
+	 * Constructs a new Bloom pass.
+	 *
+	 * @param {number} [strength=1] - The Bloom strength.
+	 * @param {number} [kernelSize=25] - The kernel size.
+	 * @param {number} [sigma=4] - The sigma.
+	 */
+	constructor( strength = 1, kernelSize = 25, sigma = 4 ) {
+
+		super();
+
+		// combine material
+
+		/**
+		 * The combine pass uniforms.
+		 *
+		 * @type {Object}
+		 */
+		this.combineUniforms = UniformsUtils.clone( CombineShader.uniforms );
+		this.combineUniforms[ 'strength' ].value = strength;
+
+		/**
+		 * The combine pass material.
+		 *
+		 * @type {ShaderMaterial}
+		 */
+		this.materialCombine = new ShaderMaterial( {
+
+			name: CombineShader.name,
+			uniforms: this.combineUniforms,
+			vertexShader: CombineShader.vertexShader,
+			fragmentShader: CombineShader.fragmentShader,
+			blending: AdditiveBlending,
+			transparent: true
+
+		} );
+
+		// convolution material
+
+		const convolutionShader = ConvolutionShader;
+
+		/**
+		 * The convolution pass uniforms.
+		 *
+		 * @type {Object}
+		 */
+		this.convolutionUniforms = UniformsUtils.clone( convolutionShader.uniforms );
+
+		this.convolutionUniforms[ 'uImageIncrement' ].value = BloomPass.blurX;
+		this.convolutionUniforms[ 'cKernel' ].value = buildKernel( sigma );
+
+		/**
+		 * The convolution pass material.
+		 *
+		 * @type {ShaderMaterial}
+		 */
+		this.materialConvolution = new ShaderMaterial( {
+
+			name: convolutionShader.name,
+			uniforms: this.convolutionUniforms,
+			vertexShader: convolutionShader.vertexShader,
+			fragmentShader: convolutionShader.fragmentShader,
+			defines: {
+				'KERNEL_SIZE_FLOAT': kernelSize.toFixed( 1 ),
+				'KERNEL_SIZE_INT': kernelSize.toFixed( 0 )
+			}
+
+		} );
+
+		/**
+		 * Overwritten to disable the swap.
+		 *
+		 * @type {boolean}
+		 * @default false
+		 */
+		this.needsSwap = false;
+
+		// internals
+
+		this._renderTargetX = new WebGLRenderTarget( 1, 1, { type: HalfFloatType } ); // will be resized later
+		this._renderTargetX.texture.name = 'BloomPass.x';
+		this._renderTargetY = new WebGLRenderTarget( 1, 1, { type: HalfFloatType } ); // will be resized later
+		this._renderTargetY.texture.name = 'BloomPass.y';
+
+		this._fsQuad = new FullScreenQuad( null );
+
+	}
+
+	/**
+	 * Performs the Bloom pass.
+	 *
+	 * @param {WebGLRenderer} renderer - The renderer.
+	 * @param {WebGLRenderTarget} writeBuffer - The write buffer. This buffer is intended as the rendering
+	 * destination for the pass.
+	 * @param {WebGLRenderTarget} readBuffer - The read buffer. The pass can access the result from the
+	 * previous pass from this buffer.
+	 * @param {number} deltaTime - The delta time in seconds.
+	 * @param {boolean} maskActive - Whether masking is active or not.
+	 */
+	render( renderer, writeBuffer, readBuffer, deltaTime, maskActive ) {
+
+		if ( maskActive ) renderer.state.buffers.stencil.setTest( false );
+
+		// Render quad with blurred scene into texture (convolution pass 1)
+
+		this._fsQuad.material = this.materialConvolution;
+
+		this.convolutionUniforms[ 'tDiffuse' ].value = readBuffer.texture;
+		this.convolutionUniforms[ 'uImageIncrement' ].value = BloomPass.blurX;
+
+		renderer.setRenderTarget( this._renderTargetX );
+		renderer.clear();
+		this._fsQuad.render( renderer );
+
+
+		// Render quad with blurred scene into texture (convolution pass 2)
+
+		this.convolutionUniforms[ 'tDiffuse' ].value = this._renderTargetX.texture;
+		this.convolutionUniforms[ 'uImageIncrement' ].value = BloomPass.blurY;
+
+		renderer.setRenderTarget( this._renderTargetY );
+		renderer.clear();
+		this._fsQuad.render( renderer );
+
+		// Render original scene with superimposed blur to texture
+
+		this._fsQuad.material = this.materialCombine;
+
+		this.combineUniforms[ 'tDiffuse' ].value = this._renderTargetY.texture;
+
+		if ( maskActive ) renderer.state.buffers.stencil.setTest( true );
+
+		renderer.setRenderTarget( readBuffer );
+		if ( this.clear ) renderer.clear();
+		this._fsQuad.render( renderer );
+
+	}
+
+	/**
+	 * Sets the size of the pass.
+	 *
+	 * @param {number} width - The width to set.
+	 * @param {number} height - The height to set.
+	 */
+	setSize( width, height ) {
+
+		this._renderTargetX.setSize( width, height );
+		this._renderTargetY.setSize( width, height );
+
+	}
+
+	/**
+	 * Frees the GPU-related resources allocated by this instance. Call this
+	 * method whenever the pass is no longer used in your app.
+	 */
+	dispose() {
+
+		this._renderTargetX.dispose();
+		this._renderTargetY.dispose();
+
+		this.materialCombine.dispose();
+		this.materialConvolution.dispose();
+
+		this._fsQuad.dispose();
+
+	}
+
+}
+
+const CombineShader = {
+
+	name: 'CombineShader',
+
+	uniforms: {
+
+		'tDiffuse': { value: null },
+		'strength': { value: 1.0 }
+
+	},
+
+	vertexShader: /* glsl */`
+
+		varying vec2 vUv;
+
+		void main() {
+
+			vUv = uv;
+			gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
+
+		}`,
+
+	fragmentShader: /* glsl */`
+
+		uniform float strength;
+
+		uniform sampler2D tDiffuse;
+
+		varying vec2 vUv;
+
+		void main() {
+
+			vec4 texel = texture2D( tDiffuse, vUv );
+			gl_FragColor = strength * texel;
+
+		}`
+
+};
+
+BloomPass.blurX = new Vector2( 0.001953125, 0.0 );
+BloomPass.blurY = new Vector2( 0.0, 0.001953125 );
+
+
+function gauss( x, sigma ) {
+
+	return Math.exp( - ( x * x ) / ( 2.0 * sigma * sigma ) );
+
+}
+
+function buildKernel( sigma ) {
+
+	// We loop off the sqrt(2 * pi) * sigma term, since we're going to normalize anyway.
+
+	const kMaxKernelSize = 25;
+	let kernelSize = 2 * Math.ceil( sigma * 3.0 ) + 1;
+
+	if ( kernelSize > kMaxKernelSize ) kernelSize = kMaxKernelSize;
+
+	const halfWidth = ( kernelSize - 1 ) * 0.5;
+
+	const values = new Array( kernelSize );
+	let sum = 0.0;
+	for ( let i = 0; i < kernelSize; ++ i ) {
+
+		values[ i ] = gauss( i - halfWidth, sigma );
+		sum += values[ i ];
+
+	}
+
+	// normalize the kernel
+
+	for ( let i = 0; i < kernelSize; ++ i ) values[ i ] /= sum;
+
+	return values;
+
+}
+
+export { BloomPass };