100 lines
2.7 KiB
HTML
100 lines
2.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html;charset=utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no">
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<title>Online 3D Viewer</title>
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<style>
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canvas
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{
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border: 1px solid #cccccc;
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}
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</style>
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<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/three@0.144.0/build/three.min.js"></script>
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<script type='text/javascript'>
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function InitRenderer (canvasId, camera, width, height)
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{
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function CreateAxisLine (color, dir)
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{
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const lineMaterial = new THREE.LineBasicMaterial ({
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color: color
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});
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const lineGeometry = new THREE.BufferGeometry ().setFromPoints ([
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new THREE.Vector3 (0, 0, 0),
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dir
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]);
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return new THREE.Line (lineGeometry, lineMaterial);
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}
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let canvas = document.getElementById (canvasId);
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let parameters = {
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canvas : canvas,
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antialias : true
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};
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let renderer = new THREE.WebGLRenderer (parameters);
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renderer.setClearColor ('#ffffff', 1);
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renderer.setSize (width, height);
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let scene = new THREE.Scene ();
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let ambientLight = new THREE.AmbientLight (0x888888);
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scene.add (ambientLight);
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let light = new THREE.DirectionalLight (0x888888);
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light.position.set (3.0, -1.5, 2.0);
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scene.add (light);
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let box = new THREE.BoxGeometry (1.0, 1.0, 1.0);
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let material = new THREE.MeshPhongMaterial ({
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color : 0xaaaaaa
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});
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let mesh = new THREE.Mesh (box, material);
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scene.add (mesh);
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scene.add (CreateAxisLine (0xff0000, new THREE.Vector3 (2.0, 0.0, 0.0)));
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scene.add (CreateAxisLine (0x00ff00, new THREE.Vector3 (0.0, 2.0, 0.0)));
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scene.add (CreateAxisLine (0x0000ff, new THREE.Vector3 (0.0, 0.0, 2.0)));
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scene.add (camera);
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renderer.render (scene, camera);
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}
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function Sandbox3D ()
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{
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let width = 600;
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let height = 400;
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let perspectiveCamera = new THREE.PerspectiveCamera (45.0, width / height, 0.1, 1000.0);
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perspectiveCamera.position.set (3.0, -1.5, 2.0);
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perspectiveCamera.up.set (0.0, 0.0, 1.0);
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perspectiveCamera.lookAt (new THREE.Vector3 (0.0, 0.0, 0.0));
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InitRenderer ('perspective_canvas', perspectiveCamera, width, height);
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let aspect = width / height;
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let frustumSize = 2.0;
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let orthographicCamera = new THREE.OrthographicCamera (-frustumSize * aspect, frustumSize * aspect, frustumSize, -frustumSize, 0, 10);
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orthographicCamera.position.set (3.0, -1.5, 2.0);
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orthographicCamera.up.set (0.0, 0.0, 1.0);
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orthographicCamera.lookAt (new THREE.Vector3 (0.0, 0.0, 0.0));
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InitRenderer ('ortographic_canvas', orthographicCamera, width, height);
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}
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window.onload = function () {
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Sandbox3D ();
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};
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</script>
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</head>
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<body>
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<canvas id="perspective_canvas"></canvas>
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<canvas id="ortographic_canvas"></canvas>
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</body>
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</html>
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