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HTML

              
                
<div id="container"></div>
              
            
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CSS

              
                
              
            
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JS

              
                
		import * as THREE from 'https://threejs.org/build/three.module.js';

		import Stats from 'https://threejs.org/examples/jsm/libs/stats.module.js';
		import { GUI } from 'https://threejs.org/examples/jsm/libs/dat.gui.module.js';

		import { OrbitControls } from 'https://threejs.org/examples/jsm/controls/OrbitControls.js';
		import { GLTFLoader } from 'https://threejs.org/examples/jsm/loaders/GLTFLoader.js';
		import { DecalGeometry } from 'https://threejs.org/examples/jsm/geometries/DecalGeometry.js';

		var container = document.getElementById('container');

		var renderer, scene, camera, stats;
		var mesh;
		var planes, planeObjects, planeHelpers, object;

		var textureLoader = new THREE.TextureLoader();
		var size = new THREE.Vector3(10, 10, 10);

		var params = {

			planeX: {

				constant: 0,
				negated: false,
				displayHelper: false

			},
			planeY: {

				constant: 0,
				negated: false,
				displayHelper: false

			},
			planeZ: {

				constant: 0,
				negated: false,
				displayHelper: false
			}
		};

		window.addEventListener('load', init);

		function init() {

			renderer = new THREE.WebGLRenderer({ antialias: true });
			renderer.setPixelRatio(window.devicePixelRatio);
			renderer.setSize(window.innerWidth, window.innerHeight);
			renderer.localClippingEnabled = true;
			container.appendChild(renderer.domElement);

			stats = new Stats();
			container.appendChild(stats.dom);

			scene = new THREE.Scene();

			camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000);
			camera.position.z = 100;
			camera.position.y = 40
			camera.position.x = 60
			camera.target = new THREE.Vector3();

			var controls = new OrbitControls(camera, renderer.domElement);
			controls.minDistance = 50;
			controls.maxDistance = 200;

			scene.add(new THREE.AmbientLight(0x443333));

			var light = new THREE.DirectionalLight(0xffddcc, 1);
			light.position.set(1, 0.75, 0.5);
			scene.add(light);

			var light = new THREE.DirectionalLight(0xccccff, 1);
			light.position.set(- 1, 0.75, - 0.5);
			scene.add(light);

			// NOTE: Setup Plane
			planes = [
				new THREE.Plane(new THREE.Vector3(-1, 0, 0), 50),
				new THREE.Plane(new THREE.Vector3(0, - 1, 0), 12),
				new THREE.Plane(new THREE.Vector3(0, 0, - 1), 50)
			];

			planeHelpers = planes.map(p => new THREE.PlaneHelper(p, 50, 0xffffff));
			planeHelpers.forEach(ph => {

				ph.visible = false;
				scene.add(ph);

			});


			object = new THREE.Group();
			object.scale.set(10, 10, 10)
			scene.add(object);

			loadLeePerrySmith();

			window.addEventListener('resize', onWindowResize, false);

			var moved = false;

			controls.addEventListener('change', function () {

				moved = true;

			});

			var gui = new GUI();
			var planeX = gui.addFolder('planeX');
			planeX.add(params.planeX, 'displayHelper').onChange(v => planeHelpers[0].visible = v);
			planeX.add(params.planeX, 'constant').min(- 50).max(50).onChange(d => planes[0].constant = d);
			planeX.add(params.planeX, 'negated').onChange(() => {

				planes[0].negate();
				params.planeX.constant = planes[0].constant;

			});
			planeX.open();

			var planeY = gui.addFolder('planeY');
			planeY.add(params.planeY, 'displayHelper').onChange(v => planeHelpers[1].visible = v);
			planeY.add(params.planeY, 'constant').min(- 50).max(50).onChange(d => planes[1].constant = d);
			planeY.add(params.planeY, 'negated').onChange(() => {

				planes[1].negate();
				params.planeY.constant = planes[1].constant;

			});
			planeY.open();

			var planeZ = gui.addFolder('planeZ');
			planeZ.add(params.planeZ, 'displayHelper').onChange(v => planeHelpers[2].visible = v);
			planeZ.add(params.planeZ, 'constant').min(- 50).max(50).onChange(d => planes[2].constant = d);
			planeZ.add(params.planeZ, 'negated').onChange(() => {

				planes[2].negate();
				params.planeZ.constant = planes[2].constant;

			});
			planeZ.open();

			gui.open();

			onWindowResize();
			animate();

		}

		function createPlaneStencilGroup(geometry, plane, renderOrder) {

			var group = new THREE.Group();
			var baseMat = new THREE.MeshBasicMaterial();
			baseMat.depthWrite = false;
			baseMat.depthTest = false;
			baseMat.colorWrite = false;
			baseMat.stencilWrite = true;
			baseMat.stencilFunc = THREE.AlwaysStencilFunc;

			// back faces
			var mat0 = baseMat.clone();
			mat0.side = THREE.BackSide;
			mat0.clippingPlanes = [plane];
			mat0.stencilFail = THREE.IncrementWrapStencilOp;
			mat0.stencilZFail = THREE.IncrementWrapStencilOp;
			mat0.stencilZPass = THREE.IncrementWrapStencilOp;

			var mesh0 = new THREE.Mesh(geometry, mat0);
			mesh0.renderOrder = renderOrder;
			group.add(mesh0);

			// front faces
			var mat1 = baseMat.clone();
			mat1.side = THREE.FrontSide;
			mat1.clippingPlanes = [plane];
			mat1.stencilFail = THREE.DecrementWrapStencilOp;
			mat1.stencilZFail = THREE.DecrementWrapStencilOp;
			mat1.stencilZPass = THREE.DecrementWrapStencilOp;

			var mesh1 = new THREE.Mesh(geometry, mat1);
			mesh1.renderOrder = renderOrder;

			group.add(mesh1);

			return group;

		}

		function loadLeePerrySmith() {

			var loader = new GLTFLoader();

			loader.load('https://threejs.org/examples/models/gltf/LeePerrySmith/LeePerrySmith.glb', function (gltf) {

				mesh = gltf.scene.children[0];

				mesh.material = new THREE.MeshPhongMaterial({
					specular: 0x111111,
					map: textureLoader.load('https://threejs.org/examples/models/gltf/LeePerrySmith/Map-COL.jpg'),
					specularMap: textureLoader.load('https://threejs.org/examples/models/gltf/LeePerrySmith/Map-SPEC.jpg'),
					normalMap: textureLoader.load('https://threejs.org/examples/models/gltf/LeePerrySmith/Infinite-Level_02_Tangent_SmoothUV.jpg'),
					shininess: 25,
				});

				// Set up clip plane rendering
				planeObjects = [];
				var planeGeom = new THREE.PlaneBufferGeometry(100, 100);
				for (var i = 0; i < 3; i++) {

					var poGroup = new THREE.Group();
					var plane = planes[i];
					var stencilGroup = createPlaneStencilGroup(mesh.geometry, plane, i + 1);

					// plane is clipped by the other clipping planes
					var planeMat =
						new THREE.MeshStandardMaterial({

							color: 0xE91E63,
							metalness: 0.1,
							roughness: 0.75,
							clippingPlanes: planes.filter(p => p !== plane),

							stencilWrite: true,
							stencilRef: 0,
							stencilFunc: THREE.NotEqualStencilFunc,
							stencilFail: THREE.ReplaceStencilOp,
							stencilZFail: THREE.ReplaceStencilOp,
							stencilZPass: THREE.ReplaceStencilOp,

						});
					var po = new THREE.Mesh(planeGeom, planeMat);
					po.onAfterRender = function (renderer) {

						renderer.clearStencil();

					};

					po.renderOrder = i + 1.1;
					object.add(stencilGroup);
					poGroup.add(po);
					planeObjects.push(po);
					scene.add(poGroup);
				}

				var material = new THREE.MeshStandardMaterial({

					// color: 0xFFC107,
					specular: 0x111111,
					map: textureLoader.load('https://threejs.org/examples/models/gltf/LeePerrySmith/Map-COL.jpg'),
					specularMap: textureLoader.load('https://threejs.org/examples/models/gltf/LeePerrySmith/Map-SPEC.jpg'),
					normalMap: textureLoader.load('https://threejs.org/examples/models/gltf/LeePerrySmith/Infinite-Level_02_Tangent_SmoothUV.jpg'),
					shininess: 25,
					metalness: 0.1,
					roughness: 0.75,
					clippingPlanes: planes,
					clipShadows: true,
					shadowSide: THREE.DoubleSide,
				});

				// add the color
				var clippedColorFront = new THREE.Mesh(mesh.geometry, material);
				clippedColorFront.castShadow = true;
				clippedColorFront.renderOrder = 6;
				object.add(clippedColorFront);

				// scene.add(mesh);
				mesh.scale.set(10, 10, 10);
			});

		}

		function onWindowResize() {

			camera.aspect = window.innerWidth / window.innerHeight;
			camera.updateProjectionMatrix();

			renderer.setSize(window.innerWidth, window.innerHeight);

		}

		function animate() {
			if (planeObjects && planeObjects.length > 0) {
				for (var i = 0; i < planeObjects.length; i++) {

					var plane = planes[i];
					var po = planeObjects[i];
					plane.coplanarPoint(po.position);
					po.lookAt(
						po.position.x - plane.normal.x,
						po.position.y - plane.normal.y,
						po.position.z - plane.normal.z,
					);

				}
			}

			requestAnimationFrame(animate);

			renderer.render(scene, camera);

			stats.update();

		}

              
            
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