feat: initialize project with core dependencies and game entry point

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

@@ -0,0 +1,97 @@
+import {
+	Color
+} from 'three';
+import { Pass } from './Pass.js';
+
+/**
+ * This class can be used to force a clear operation for the current read or
+ * default framebuffer (when rendering to screen).
+ *
+ * ```js
+ * const clearPass = new ClearPass();
+ * composer.addPass( clearPass );
+ * ```
+ *
+ * @augments Pass
+ * @three_import import { ClearPass } from 'three/addons/postprocessing/ClearPass.js';
+ */
+class ClearPass extends Pass {
+
+	/**
+	 * Constructs a new clear pass.
+	 *
+	 * @param {(number|Color|string)} [clearColor=0x000000] - The clear color.
+	 * @param {number} [clearAlpha=0] - The clear alpha.
+	 */
+	constructor( clearColor = 0x000000, clearAlpha = 0 ) {
+
+		super();
+
+		/**
+		 * Overwritten to disable the swap.
+		 *
+		 * @type {boolean}
+		 * @default false
+		 */
+		this.needsSwap = false;
+
+		/**
+		 * The clear color.
+		 *
+		 * @type {(number|Color|string)}
+		 * @default 0x000000
+		 */
+		this.clearColor = clearColor;
+
+		/**
+		 * The clear alpha.
+		 *
+		 * @type {number}
+		 * @default 0
+		 */
+		this.clearAlpha = clearAlpha;
+
+		// internals
+
+		this._oldClearColor = new Color();
+
+	}
+
+	/**
+	 * Performs the clear operation. This affects the current read or the default framebuffer.
+	 *
+	 * @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 */ ) {
+
+		let oldClearAlpha;
+
+		if ( this.clearColor ) {
+
+			renderer.getClearColor( this._oldClearColor );
+			oldClearAlpha = renderer.getClearAlpha();
+
+			renderer.setClearColor( this.clearColor, this.clearAlpha );
+
+		}
+
+		renderer.setRenderTarget( this.renderToScreen ? null : readBuffer );
+		renderer.clear();
+
+		if ( this.clearColor ) {
+
+			renderer.setClearColor( this._oldClearColor, oldClearAlpha );
+
+		}
+
+	}
+
+}
+
+export { ClearPass };