通过顶点创建网格

作者: Codifier | 来源:发表于2019-11-07 19:30 被阅读0次

通过顶点创建网格
网格列表GridView组件的基本使用
QEM网格简化
NGUI字体描边
编辑模式下其他操作
网格
Unity对项目性能优化的实现
LibGDX图形模块之网格
Unity UGUI 文字渐变脚本（多种颜色垂直渐变）
Flutter 基本组件之GridView

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Create a Mesh By Vertexes</title>
    <script src="../../three-part/threejs/three.js"></script>
    <script src="../../three-part/utils/stats.min.js"></script>
    <script src="../../three-part/utils/dat.gui.min.js"></script>
    <script src="../controls/TrackballControls.js"></script>
    <script src="../util/util.js"></script>
    <style>
        body {
            margin: 0;
            overflow: hidden;
        }
    </style>
</head>
<body>
<div id="container"></div>
<script type="text/javascript">
    init();
    function init() {
        // show FPS
        let stats = initStats();
        // resize
        window.addEventListener('resize', onResize, false);

        let scene = new THREE.Scene();
        let camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
        camera.position.x = -30;
        camera.position.y = 40;
        camera.position.z = 30;
        camera.lookAt(scene.position);

        let renderer = new THREE.WebGLRenderer();
        renderer.setClearColor(new THREE.Color(0x000000));
        renderer.setSize(window.innerWidth, window.innerHeight);
        document.getElementById("container").appendChild(renderer.domElement);

        // init trackball control
        let trackballControls = initTrackballControls(camera, renderer);
        let clock = new THREE.Clock();

        let vertices = [
            new THREE.Vector3(1,3,1),
            new THREE.Vector3(1,3,-1),
            new THREE.Vector3(1,-1,1),
            new THREE.Vector3(1,-1,-1),
            new THREE.Vector3(-1,3,-1),
            new THREE.Vector3(-1,3,1),
            new THREE.Vector3(-1,-1,-1),
            new THREE.Vector3(-1,-1,1)
        ];

        let faces = [
            new THREE.Face3(0,2,1),
            new THREE.Face3(2,3,1),
            new THREE.Face3(4,6,5),
            new THREE.Face3(6,7,5),
            new THREE.Face3(4,5,1),
            new THREE.Face3(5,0,1),
            new THREE.Face3(7,6,2),
            new THREE.Face3(6,3,2),
            new THREE.Face3(5,7,0),
            new THREE.Face3(7,2,0),
            new THREE.Face3(1,3,4),
            new THREE.Face3(3,6,4),
        ];

        let geom = new THREE.Geometry();
        geom.vertices = vertices;
        geom.faces = faces;
        geom.computeFaceNormals();

        let material = new THREE.MeshLambertMaterial({
            color : 0xff0000
        });

        let mesh = new THREE.Mesh(geom, material);
        scene.add(mesh);

        // add a ambient light
        let ambientLight = new THREE.AmbientLight(0x3c3c3c);
        scene.add(ambientLight);

        // add a spot light
        let spotLight = new THREE.SpotLight(0xffffff, 1.2, 150, 120);
        spotLight.position.set(-40, 60, -10);
        spotLight.castShadow = true;
        scene.add(spotLight);


        // attributes which can be modified in GUI
        const controls = {

        };
        // init GUI
        initGUI();

        renderScene();

        function initGUI(){
            let gui = new dat.GUI();
        }

        function onResize() {
            camera.aspect = window.innerWidth / window.innerHeight;
            camera.updateProjectionMatrix();
            renderer.setSize(window.innerWidth, window.innerHeight);
        }

        function renderScene(){
            trackballControls.update(clock.getDelta());
            stats.update();
            requestAnimationFrame(renderScene);
            renderer.render(scene, camera);
        }
    }
</script>
</body>
</html>

运行结果：