NodeMaterial: Add support for alphaHash. (#1366)

* NodeMaterial: Add support for alphaHash.

* Update three.js

* Add examples

* Update patch and delete examples

examples-testing/changes.patch

@@ -13972,6 +13972,32 @@ index 04023326..05ee79b0 100644
 
  init();
 
+diff --git a/examples-testing/examples/webgpu_materials_alphahash.ts b/examples-testing/examples/webgpu_materials_alphahash.ts
+index 9e4b627e..cc25f04e 100644
+--- a/examples-testing/examples/webgpu_materials_alphahash.ts
++++ b/examples-testing/examples/webgpu_materials_alphahash.ts
+@@ -1,4 +1,4 @@
+-import * as THREE from 'three';
++import * as THREE from 'three/webgpu';
+
+ import Stats from 'three/addons/libs/stats.module.js';
+ import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
+@@ -7,7 +7,14 @@ import { RoomEnvironment } from 'three/addons/environments/RoomEnvironment.js';
+
+ import { ssaaPass } from 'three/addons/tsl/display/SSAAPassNode.js';
+
+-let camera, scene, renderer, controls, stats, mesh, material, postProcessing;
++let camera: THREE.PerspectiveCamera,
++    scene: THREE.Scene,
++    renderer: THREE.WebGPURenderer,
++    controls: OrbitControls,
++    stats: Stats,
++    mesh: THREE.InstancedMesh,
++    material: THREE.MeshStandardMaterial,
++    postProcessing: THREE.PostProcessing;
+
+ const amount = parseInt(window.location.search.slice(1)) || 3;
+ const count = Math.pow(amount, 3);
 diff --git a/examples-testing/examples/webgpu_materials_arrays.ts b/examples-testing/examples/webgpu_materials_arrays.ts
 index 35a25f77..b893f2c0 100644
 --- a/examples-testing/examples/webgpu_materials_arrays.ts

types/three/src/nodes/functions/material/getAlphaHashThreshold.d.ts

@@ -0,0 +1,6 @@
+import Node from "../../core/Node.js";
+import { NodeRepresentation, ShaderNodeObject } from "../../tsl/TSLCore.js";
+
+declare const getAlphaHashThreshold: (position: NodeRepresentation) => ShaderNodeObject<Node>;
+
+export default getAlphaHashThreshold;