feat: initialize project with core dependencies and game entry point

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

@@ -0,0 +1,68 @@
+
+/**
+ * @module BleachBypassShader
+ * @three_import import { BleachBypassShader } from 'three/addons/shaders/BleachBypassShader.js';
+ */
+
+/**
+ * Bleach bypass shader [http://en.wikipedia.org/wiki/Bleach_bypass] based on
+ * [Nvidia Shader library](http://developer.download.nvidia.com/shaderlibrary/webpages/shader_library.html#post_bleach_bypass).
+ *
+ * @constant
+ * @type {ShaderMaterial~Shader}
+ */
+const BleachBypassShader = {
+
+	name: 'BleachBypassShader',
+
+	uniforms: {
+
+		'tDiffuse': { value: null },
+		'opacity': { value: 1.0 }
+
+	},
+
+	vertexShader: /* glsl */`
+
+		varying vec2 vUv;
+
+		void main() {
+
+			vUv = uv;
+			gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
+
+		}`,
+
+	fragmentShader: /* glsl */`
+
+		uniform float opacity;
+
+		uniform sampler2D tDiffuse;
+
+		varying vec2 vUv;
+
+		void main() {
+
+			vec4 base = texture2D( tDiffuse, vUv );
+
+			float lum = luminance( base.rgb );
+			vec3 blend = vec3( lum );
+
+			float L = min( 1.0, max( 0.0, 10.0 * ( lum - 0.45 ) ) );
+
+			vec3 result1 = 2.0 * base.rgb * blend;
+			vec3 result2 = 1.0 - 2.0 * ( 1.0 - blend ) * ( 1.0 - base.rgb );
+
+			vec3 newColor = mix( result1, result2, L );
+
+			float A2 = opacity * base.a;
+			vec3 mixRGB = A2 * newColor.rgb;
+			mixRGB += ( ( 1.0 - A2 ) * base.rgb );
+
+			gl_FragColor = vec4( mixRGB, base.a );
+
+		}`
+
+};
+
+export { BleachBypassShader };