preact

frontend/node_modules/three/examples/jsm/nodes/fog/FogExp2Node.js

@@ -0,0 +1,34 @@
+import FogNode from './FogNode.js';
+import { addNodeClass } from '../core/Node.js';
+import { addNodeElement, nodeProxy } from '../shadernode/ShaderNode.js';
+
+class FogExp2Node extends FogNode {
+
+	constructor( colorNode, densityNode ) {
+
+		super( colorNode );
+
+		this.isFogExp2Node = true;
+
+		this.densityNode = densityNode;
+
+	}
+
+	setup( builder ) {
+
+		const viewZ = this.getViewZNode( builder );
+		const density = this.densityNode;
+
+		return density.mul( density, viewZ, viewZ ).negate().exp().oneMinus();
+
+	}
+
+}
+
+export default FogExp2Node;
+
+export const densityFog = nodeProxy( FogExp2Node );
+
+addNodeElement( 'densityFog', densityFog );
+
+addNodeClass( 'FogExp2Node', FogExp2Node );