feat: initialize project with core dependencies and game entry point

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

@@ -0,0 +1,113 @@
+import {
+	ShaderMaterial,
+	UniformsUtils
+} from 'three';
+import { Pass, FullScreenQuad } from './Pass.js';
+import { FilmShader } from '../shaders/FilmShader.js';
+
+/**
+ * This pass can be used to create a film grain effect.
+ *
+ * ```js
+ * const filmPass = new FilmPass();
+ * composer.addPass( filmPass );
+ * ```
+ *
+ * @augments Pass
+ * @three_import import { FilmPass } from 'three/addons/postprocessing/FilmPass.js';
+ */
+class FilmPass extends Pass {
+
+	/**
+	 * Constructs a new film pass.
+	 *
+	 * @param {number} [intensity=0.5] - The grain intensity in the range `[0,1]` (0 = no effect, 1 = full effect).
+	 * @param {boolean} [grayscale=false] - Whether to apply a grayscale effect or not.
+	 */
+	constructor( intensity = 0.5, grayscale = false ) {
+
+		super();
+
+		const shader = FilmShader;
+
+		/**
+		 * The pass uniforms. Use this object if you want to update the
+		 * `intensity` or `grayscale` values at runtime.
+		 * ```js
+		 * pass.uniforms.intensity.value = 1;
+		 * pass.uniforms.grayscale.value = true;
+		 * ```
+		 *
+		 * @type {Object}
+		 */
+		this.uniforms = UniformsUtils.clone( shader.uniforms );
+
+		/**
+		 * The pass material.
+		 *
+		 * @type {ShaderMaterial}
+		 */
+		this.material = new ShaderMaterial( {
+
+			name: shader.name,
+			uniforms: this.uniforms,
+			vertexShader: shader.vertexShader,
+			fragmentShader: shader.fragmentShader
+
+		} );
+
+		this.uniforms.intensity.value = intensity;
+		this.uniforms.grayscale.value = grayscale;
+
+		// internals
+
+		this._fsQuad = new FullScreenQuad( this.material );
+
+	}
+
+	/**
+	 * Performs the film 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 */ ) {
+
+		this.uniforms[ 'tDiffuse' ].value = readBuffer.texture;
+		this.uniforms[ 'time' ].value += deltaTime;
+
+		if ( this.renderToScreen ) {
+
+			renderer.setRenderTarget( null );
+			this._fsQuad.render( renderer );
+
+		} else {
+
+			renderer.setRenderTarget( writeBuffer );
+			if ( this.clear ) renderer.clear();
+			this._fsQuad.render( renderer );
+
+		}
+
+	}
+
+	/**
+	 * Frees the GPU-related resources allocated by this instance. Call this
+	 * method whenever the pass is no longer used in your app.
+	 */
+	dispose() {
+
+		this.material.dispose();
+
+		this._fsQuad.dispose();
+
+	}
+
+}
+
+export { FilmPass };