Initial project import

node_modules/three-stdlib/shaders/VignetteShader.js

@@ -0,0 +1,55 @@
+const VignetteShader = {
+  uniforms: {
+    tDiffuse: { value: null },
+    offset: { value: 1 },
+    darkness: { value: 1 }
+  },
+  vertexShader: (
+    /* glsl */
+    `
+    varying vec2 vUv;
+
+    void main() {
+
+    	vUv = uv;
+    	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
+
+    }
+  `
+  ),
+  fragmentShader: (
+    /* glsl */
+    `
+    uniform float offset;
+    uniform float darkness;
+
+    uniform sampler2D tDiffuse;
+
+    varying vec2 vUv;
+
+    void main() {
+
+    // Eskils vignette
+
+    	vec4 texel = texture2D( tDiffuse, vUv );
+    	vec2 uv = ( vUv - vec2( 0.5 ) ) * vec2( offset );
+    	gl_FragColor = vec4( mix( texel.rgb, vec3( 1.0 - darkness ), dot( uv, uv ) ), texel.a );
+
+    /*
+		// alternative version from glfx.js
+		// this one makes more "dusty" look (as opposed to "burned")
+
+		vec4 color = texture2D( tDiffuse, vUv );
+		float dist = distance( vUv, vec2( 0.5 ) );
+		color.rgb *= smoothstep( 0.8, offset * 0.799, dist *( darkness + offset ) );
+		gl_FragColor = color;
+		*/
+
+    }
+  `
+  )
+};
+export {
+  VignetteShader
+};
+//# sourceMappingURL=VignetteShader.js.map