Node: Add SobelOperatorNode. (#1056)

* Node: Add SobelOperatorNode.

* Update three.js

* Add examples

* Update patch

* Delete examples

* Fix import

examples-testing/changes.patch

@@ -14255,6 +14255,21 @@ index b89f2921..c3cfcdfe 100644
 
      postProcessing.outputNode = combinedPass;
 
+diff --git a/examples-testing/examples/webgpu_postprocessing_sobel.ts b/examples-testing/examples/webgpu_postprocessing_sobel.ts
+index fc24f73b..27e9fe75 100644
+--- a/examples-testing/examples/webgpu_postprocessing_sobel.ts
++++ b/examples-testing/examples/webgpu_postprocessing_sobel.ts
+@@ -8,8 +8,8 @@ import { pass } from 'three/nodes';
+
+ import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
+
+-let camera, scene, renderer;
+-let postProcessing;
++let camera: THREE.PerspectiveCamera, scene: THREE.Scene, renderer: WebGPURenderer;
++let postProcessing: PostProcessing;
+
+ const params = {
+     enable: true,
 diff --git a/examples-testing/examples/webgpu_textures_anisotropy.ts b/examples-testing/examples/webgpu_textures_anisotropy.ts
 index ca0ae9e7..2125232e 100644
 --- a/examples-testing/examples/webgpu_textures_anisotropy.ts

types/three/examples/jsm/nodes/Nodes.d.ts

@@ -302,6 +302,7 @@ export { default as FrontFacingNode, faceDirection, frontFacing } from "./displa
 export { default as GaussianBlurNode, gaussianBlur } from "./display/GaussianBlurNode.js";
 export { default as NormalMapNode, normalMap } from "./display/NormalMapNode.js";
 export { default as PosterizeNode, posterize } from "./display/PosterizeNode.js";
+export { default as SobelOperatorNode, sobel } from "./display/SobelOperatorNode.js";
 export { default as ToneMappingNode, toneMapping } from "./display/ToneMappingNode.js";
 export {
     default as ViewportDepthNode,

types/three/examples/jsm/nodes/display/SobelOperatorNode.d.ts

@@ -0,0 +1,17 @@
+import TextureNode from "../accessors/TextureNode.js";
+import TempNode from "../core/TempNode.js";
+import { NodeRepresentation, ShaderNodeObject } from "../shadernode/ShaderNode.js";
+
+export default class SobelOperatorNode extends TempNode {
+    textureNode: TextureNode;
+
+    constructor(textureNode: TextureNode);
+}
+
+export const sobel: (node: NodeRepresentation) => ShaderNodeObject<SobelOperatorNode>;
+
+declare module "../shadernode/ShaderNode.js" {
+    interface NodeElements {
+        sobel: typeof sobel;
+    }
+}