feat: initialize project with core dependencies and game entry point

node_modules/three/examples/jsm/shaders/DOFMipMapShader.js

@@ -0,0 +1,63 @@
+/**
+ * @module DOFMipMapShader
+ * @three_import import { DOFMipMapShader } from 'three/addons/shaders/DOFMipMapShader.js';
+ */
+
+/**
+ * Depth-of-field shader using mipmaps from Matt Handley @applmak.
+ *
+ * Requires power-of-2 sized render target with enabled mipmaps.
+ *
+ * @constant
+ * @type {ShaderMaterial~Shader}
+ */
+const DOFMipMapShader = {
+
+	name: 'DOFMipMapShader',
+
+	uniforms: {
+
+		'tColor': { value: null },
+		'tDepth': { value: null },
+		'focus': { value: 1.0 },
+		'maxblur': { value: 1.0 }
+
+	},
+
+	vertexShader: /* glsl */`
+
+		varying vec2 vUv;
+
+		void main() {
+
+			vUv = uv;
+			gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
+
+		}`,
+
+	fragmentShader: /* glsl */`
+
+		uniform float focus;
+		uniform float maxblur;
+
+		uniform sampler2D tColor;
+		uniform sampler2D tDepth;
+
+		varying vec2 vUv;
+
+		void main() {
+
+			vec4 depth = texture2D( tDepth, vUv );
+
+			float factor = depth.x - focus;
+
+			vec4 col = texture2D( tColor, vUv, 2.0 * maxblur * abs( focus - depth.x ) );
+
+			gl_FragColor = col;
+			gl_FragColor.a = 1.0;
+
+		}`
+
+};
+
+export { DOFMipMapShader };