20、指向其他物体

创建日期：2024-07-08

更新日期：2025-01-12

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>20_指向其他物体</title>
    <link href="../css/index.css" rel="stylesheet" />
    <script src="../libs/three.js"></script>
    <script src="../libs/dat.gui.min.js"></script>
</head>
<body>
    <script>
        var scene = new THREE.Scene();

        var renderer = new THREE.WebGLRenderer({ antialias: true });
        renderer.setClearColor(0x000000, 1.0);
        renderer.setSize(window.innerWidth, window.innerHeight);
        document.body.appendChild(renderer.domElement);

        var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 10000);
        camera.position.set(50, 50, 50);
        camera.lookAt(scene.position);

        var geometry = new THREE.BoxGeometry(2, 10, 2);
        var material = new THREE.MeshBasicMaterial({ color: 0x0000ff });
        var box = new THREE.Mesh(geometry, material);
        scene.add(box);
        box.rotation.x = Math.PI / 2;

        var geometry = new THREE.SphereGeometry(3, 120, 120);
        var material = new THREE.MeshBasicMaterial({ color: 0xff0000 });
        var sphere = new THREE.Mesh(geometry, material);
        scene.add(sphere);
        sphere.position.y = 15;

        var render = function () {
            requestAnimationFrame(render);
            renderer.render(scene, camera);
        }

        var controls = new function () {
            this.pointSphere = function () {
                box.lookAt(sphere);
            };
        };

        var gui = new dat.GUI();
        gui.add(controls, 'pointSphere');

        render();
    </script>
</body>
</html>

简介

一个来自三线小城市的程序员开发经验总结。

20、指向其他物体

简介

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