first app vibe

app/node_modules/three/src/nodes/accessors/BuiltinNode.js

@@ -0,0 +1,63 @@
+import Node from '../core/Node.js';
+import { nodeProxy } from '../tsl/TSLBase.js';
+
+/**
+ * The node allows to set values for built-in shader variables. That is
+ * required for features like hardware-accelerated vertex clipping.
+ *
+ * @augments Node
+ */
+class BuiltinNode extends Node {
+
+	/**
+	 * Constructs a new builtin node.
+	 *
+	 * @param {string} name - The name of the built-in shader variable.
+	 */
+	constructor( name ) {
+
+		super( 'float' );
+
+		/**
+		 * The name of the built-in shader variable.
+		 *
+		 * @type {string}
+		 */
+		this.name = name;
+
+		/**
+		 * This flag can be used for type testing.
+		 *
+		 * @type {boolean}
+		 * @readonly
+		 * @default true
+		 */
+		this.isBuiltinNode = true;
+
+	}
+
+	/**
+	 * Generates the code snippet of the builtin node.
+	 *
+	 * @param {NodeBuilder} builder - The current node builder.
+	 * @return {string} The generated code snippet.
+	 */
+	generate( /* builder */ ) {
+
+		return this.name;
+
+	}
+
+}
+
+export default BuiltinNode;
+
+/**
+ * TSL function for creating a builtin node.
+ *
+ * @tsl
+ * @function
+ * @param {string} name - The name of the built-in shader variable.
+ * @returns {BuiltinNode}
+ */
+export const builtin = nodeProxy( BuiltinNode ).setParameterLength( 1 );