samien
/
three.js
mirror da https://github.com/mrdoob/three.js.git


			
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							<!DOCTYPE html>
<html lang="en">

<head>
	<title>three.js webgl - materials - normal map [Lee Perry-Smith]</title>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
	<link type="text/css" rel="stylesheet" href="main.css">
	<style>
		#vt {
			display: none
		}

		#vt,
		#vt a {
			color: orange;
		}
	</style>
</head>

<body>
	<div id="info">
		<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl clearcoat geometry normal
		demo.<br />
	</div>

	<script type="module">

		import * as THREE from '../build/three.module.js';

		import Stats from './jsm/libs/stats.module.js';

		import { GUI } from './jsm/libs/dat.gui.module.js';

		import { OrbitControls } from './jsm/controls/OrbitControls.js';
		import { HDRCubeTextureLoader } from './jsm/loaders/HDRCubeTextureLoader.js';
		import { PMREMGenerator } from './jsm/pmrem/PMREMGenerator.js';
		import { PMREMCubeUVPacker } from './jsm/pmrem/PMREMCubeUVPacker.js';

		var container, stats, loader;

		var camera, scene, renderer;

		var guiParams = {
			metalness: 0.0,
			roughness: 1.0,
			clearCoat: 1.0,
			clearCoatRoughness: 0.0,
			reflectivity: 0.0,
		};

		var guiNormalMapNames = [
			"face",
			"tentacle"
		]

		var guiMatParams = {
			normalMap: "face",
			normalScale: 1.0,
			clearCoatNormalMap: "tentacle",
			clearCoatNormalScale: 1.0,
		}

		var particleLight;
		var meshes = [];
		var mats = [];
		var normalMaps = {};

		var windowHalfX = window.innerWidth / 2;
		var windowHalfY = window.innerHeight / 2;

		const sphereSize = 80;
		const sphereSpacing = 1.25 * sphereSize * 2;

		const variationsX = [
			(mat, scale, map) => { mat.clearCoatNormalScale.copy(mat.normalScale); },
			(mat, scale, map) => { mat.clearCoatNormalScale = new THREE.Vector2(scale, scale); },
			(mat, scale, map) => {
				mat.clearCoatNormalScale = new THREE.Vector2(scale, scale);
				if (mat.clearCoatNormalMap !== map) {
					mat.clearCoatNormalMap = map;
					mat.needsUpdate = true;
				}
			},
		];

		const variationsY = [
			(mat, scale, map) => { },
			(mat, scale, map) => {
				mat.normalScale = new THREE.Vector2(scale, scale);
				if (mat.normalMap !== map) {
					mat.normalMap = map;
					mat.needsUpdate = true;
				}
			},
		];

		const maxI = variationsX.length;
		const maxJ = variationsY.length;

		new THREE.FontLoader()
			.load('fonts/gentilis_regular.typeface.json', function (font) {
				init(font);
				animate();
			});


		function init(font) {

			container = document.createElement('div');
			document.body.appendChild(container);

			camera = new THREE.PerspectiveCamera(27, window.innerWidth / window.innerHeight, 1, 10000);
			camera.position.z = 1500;

			var genCubeUrls = function (prefix, postfix) {

				return [
					prefix + 'px' + postfix, prefix + 'nx' + postfix,
					prefix + 'py' + postfix, prefix + 'ny' + postfix,
					prefix + 'pz' + postfix, prefix + 'nz' + postfix
				];

			};

			scene = new THREE.Scene();

			var hdrUrls = genCubeUrls('./textures/cube/pisaHDR/', '.hdr');

			new HDRCubeTextureLoader()
				.setType(THREE.UnsignedByteType)
				.load(hdrUrls, function (hdrCubeMap) {

					var pmremGenerator = new PMREMGenerator(hdrCubeMap);
					pmremGenerator.update(renderer);

					var pmremCubeUVPacker = new PMREMCubeUVPacker(pmremGenerator.cubeLods);
					pmremCubeUVPacker.update(renderer);

					var hdrCubeRenderTarget = pmremCubeUVPacker.CubeUVRenderTarget;

					var geometry = new THREE.SphereBufferGeometry(80, 64, 32);

					var textureLoader = new THREE.TextureLoader();

					normalMaps.tentacle = textureLoader
						.load("textures/nvidia_tentacle/tentacle_tangent_space.png");

					normalMaps.face = textureLoader
						.load("models/gltf/LeePerrySmith/Infinite-Level_02_Tangent_SmoothUV.jpg");

					// objectNormalMap = textureLoader
					// 	.load("textures/nvidia_tentacle/tentacle_object_space.png");

					var matParams = {
						envMap: hdrCubeRenderTarget.texture,
					};


					for (var ii = 0; ii < maxI; ii++) {
						if (!mats[ii]) {
							mats[ii] = [];
						}
						for (var jj = 0; jj < maxJ; jj++) {

							var mat = mats[ii][jj] = new THREE.MeshPhysicalMaterial(matParams);

							variationsX[ii](mat, 1, normalMaps.tentacle);
							variationsY[jj](mat, 1, normalMaps.face);
							var mesh = new THREE.Mesh(geometry, mat);
							meshes.push(mesh);
							mesh.position.x = (ii - (maxI - 1) / 2) * sphereSpacing;
							mesh.position.y = (jj - (maxJ - 1) / 2) * sphereSpacing;
							scene.add(mesh);
						}
					}

					hdrCubeMap.magFilter = THREE.LinearFilter;
					hdrCubeMap.needsUpdate = true;
					scene.background = hdrCubeMap;

					pmremGenerator.dispose();
					pmremCubeUVPacker.dispose();
				});

			function addLabel(name, location, fontSize) {
				fontSize = fontSize | 20;
				var textGeo = new THREE.TextBufferGeometry(name, {

					font: font,
					size: fontSize,
					height: 1,
					curveSegments: 1

				});

				var textMaterial = new THREE.MeshBasicMaterial({ color: 0xffffff });
				var textMesh = new THREE.Mesh(textGeo, textMaterial);

				textGeo.computeBoundingBox();
				var bb = textGeo.boundingBox.clone();
				var displace = bb.max.sub(bb.min).divide(new THREE.Vector3(2, 2, 2));

				textMesh.position.copy(location.sub(displace));
				scene.add(textMesh);

			}


			addLabel("Normal Map", new THREE.Vector3(-450, 0, 0), 30);
			addLabel("None", new THREE.Vector3(-350, -100, 0));
			addLabel("Scaling + Map", new THREE.Vector3(-400, 100, 0));

			addLabel("Clearcoat Normal Map", new THREE.Vector3(0, 260, 0), 30);
			addLabel("None", new THREE.Vector3(- 200, 200, 0));
			addLabel("Scaling", new THREE.Vector3(0, 200, 0));
			addLabel("Scaling + Map", new THREE.Vector3(200, 200, 0));

			// LIGHTS

			particleLight = new THREE.Mesh(new THREE.SphereBufferGeometry(4, 8, 8), new THREE.MeshBasicMaterial({ color: 0xffffff }));
			scene.add(particleLight);

			{
				var ambientLight = new THREE.AmbientLight(0x444444);
				scene.add(ambientLight);
			}
			{
				var pointLight = new THREE.PointLight(0xffffff, 1.25, 1000);
				particleLight.add(pointLight);
			}
			{
				var directionalLight = new THREE.DirectionalLight(0xffffff);
				directionalLight.position.set(1, - 0.5, - 1);
				scene.add(directionalLight);
			}


			renderer = new THREE.WebGLRenderer();
			renderer.setSize(window.innerWidth, window.innerHeight);
			container.appendChild(renderer.domElement);

			//

			renderer.gammaInput = true;
			renderer.gammaOutput = true;

			//

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

			// EVENTS

			var controls = new OrbitControls(camera, renderer.domElement);

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

			var gui = new GUI();

			gui.add(guiParams, 'metalness', 0, 1, 0.01);
			gui.add(guiParams, 'roughness', 0, 1, 0.01);
			gui.add(guiParams, 'reflectivity', 0, 1, 0.01);
			gui.add(guiParams, 'clearCoat', 0, 1, 0.01);
			gui.add(guiParams, 'clearCoatRoughness', 0, 1, 0.01);


			gui.add(guiMatParams, 'normalMap', guiNormalMapNames);
			gui.add(guiMatParams, 'normalScale', 0, 1, 0.01);
			gui.add(guiMatParams, 'clearCoatNormalMap', guiNormalMapNames);
			gui.add(guiMatParams, 'clearCoatNormalScale', 0, 1, 0.01);

			gui.open();
		}

		//

		function onWindowResize() {
			var width = window.innerWidth;
			var height = window.innerHeight;

			camera.aspect = width / height;
			camera.updateProjectionMatrix();

			renderer.setSize(width, height);
		}

		//

		function animate() {

			requestAnimationFrame(animate);

			render();

			stats.update();

		}

		function render() {

			var matColor = new THREE.Color().setHSL(0.0, 0.5, 0.25);

			for (var ii = 0; ii < maxI; ii++) {
				if (mats[ii]) {
					for (var jj = 0; jj < maxJ; jj++) {
						var mat = mats[ii][jj];
						mat.color = matColor;
						for (var matParam in guiParams) {
							mat[matParam] = guiParams[matParam];
						}

						var normalMap = normalMaps[guiMatParams.normalMap];
						var clearCoatNormalMap = normalMaps[guiMatParams.clearCoatNormalMap];

						variationsX[ii](mat, guiMatParams.clearCoatNormalScale, clearCoatNormalMap);
						variationsY[jj](mat, guiMatParams.normalScale, normalMap);
					}
				}
			}

			var timer = Date.now() * 0.00025;
			particleLight.position.x = Math.sin(timer * 7) * 300;
			particleLight.position.y = Math.cos(timer * 5) * 400;
			particleLight.position.z = Math.cos(timer * 3) * 300;


			for (var mesh of meshes) {
				mesh.rotation.y += 0.01;
			}


			renderer.render(scene, camera);

		}

	</script>

</body>

</html>