three.js/examples/jsm/nodes/misc/BumpMapNode.d.ts

import { TempNode } from '../core/TempNode';
import { NodeBuilder } from '../core/NodeBuilder';
import { FloatNode } from '../inputs/FloatNode';
import { FunctionNode } from '../core/FunctionNode';
import { TextureNode } from '../inputs/TextureNode';

export class BumpMapNode extends TempNode {
  constructor(value: TextureNode, scale?: FloatNode);

  value: TextureNode;
  scale: FloatNode;
  toNormalMap: boolean;
  nodeType: string;

  generate(builder: NodeBuilder, output: string): string;
  copy(source: BumpMapNode): this;

  static Nodes: {
    dHdxy_fwd: FunctionNode;
    perturbNormalArb: FunctionNode;
    bumpToNormal: FunctionNode;
  }
}