feat: initialize project with core dependencies and game entry point

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

@@ -0,0 +1,135 @@
+import {
+	ShaderMaterial,
+	UniformsUtils
+} from 'three';
+import { Pass, FullScreenQuad } from './Pass.js';
+
+/**
+ * This pass can be used to create a post processing effect
+ * with a raw GLSL shader object. Useful for implementing custom
+ * effects.
+ *
+ * ```js
+ * const fxaaPass = new ShaderPass( FXAAShader );
+ * composer.addPass( fxaaPass );
+ * ```
+ *
+ * @augments Pass
+ * @three_import import { ShaderPass } from 'three/addons/postprocessing/ShaderPass.js';
+ */
+class ShaderPass extends Pass {
+
+	/**
+	 * Constructs a new shader pass.
+	 *
+	 * @param {Object|ShaderMaterial} [shader] - A shader object holding vertex and fragment shader as well as
+	 * defines and uniforms. It's also valid to pass a custom shader material.
+	 * @param {string} [textureID='tDiffuse'] - The name of the texture uniform that should sample
+	 * the read buffer.
+	 */
+	constructor( shader, textureID = 'tDiffuse' ) {
+
+		super();
+
+		/**
+		 * The name of the texture uniform that should sample the read buffer.
+		 *
+		 * @type {string}
+		 * @default 'tDiffuse'
+		 */
+		this.textureID = textureID;
+
+		/**
+		 * The pass uniforms.
+		 *
+		 * @type {?Object}
+		 */
+		this.uniforms = null;
+
+		/**
+		 * The pass material.
+		 *
+		 * @type {?ShaderMaterial}
+		 */
+		this.material = null;
+
+		if ( shader instanceof ShaderMaterial ) {
+
+			this.uniforms = shader.uniforms;
+
+			this.material = shader;
+
+		} else if ( shader ) {
+
+			this.uniforms = UniformsUtils.clone( shader.uniforms );
+
+			this.material = new ShaderMaterial( {
+
+				name: ( shader.name !== undefined ) ? shader.name : 'unspecified',
+				defines: Object.assign( {}, shader.defines ),
+				uniforms: this.uniforms,
+				vertexShader: shader.vertexShader,
+				fragmentShader: shader.fragmentShader
+
+			} );
+
+		}
+
+		// internals
+
+		this._fsQuad = new FullScreenQuad( this.material );
+
+	}
+
+	/**
+	 * Performs the shader 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 ( this.uniforms[ this.textureID ] ) {
+
+			this.uniforms[ this.textureID ].value = readBuffer.texture;
+
+		}
+
+		this._fsQuad.material = this.material;
+
+		if ( this.renderToScreen ) {
+
+			renderer.setRenderTarget( null );
+			this._fsQuad.render( renderer );
+
+		} else {
+
+			renderer.setRenderTarget( writeBuffer );
+			// TODO: Avoid using autoClear properties, see https://github.com/mrdoob/three.js/pull/15571#issuecomment-465669600
+			if ( this.clear ) renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );
+			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 { ShaderPass };