Three.jsで3D年賀状を動作させたい

Three.jsで3D年賀状を作成したいです。
以下（ http://coderecipe.jp/recipe/7PrRS8IMRb/ ）の通りコードをコピペしたのですが動作させることが出来ません。何故でしょうか？

HTML
1<!DOCTYPE html>
2<meta charset="utf-8">
3<title>Happy New Year 2015</title>
4<!-- three.min.js -->
5<script src="http://threejs.org/build/three.min.js"></script>
6<script src="index.js"></script>

JavaScript
1// Jumping Sheep by cx20
2// http://kyucon.com/qblock/#/63138
3// 
4var dataSet = [
5    [
6    ...
7    ],
8    [
9    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
10    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
11    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
12    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
13    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
14    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
15    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
16    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
17    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
18    "×","赤","赤","赤","×","赤","赤","赤","×","赤","×","赤","赤","赤","×","×",
19    "×","赤","×","赤","×","赤","×","赤","×","赤","×","赤","×","×","×","×",
20    "×","×","×","赤","×","赤","×","赤","×","赤","×","赤","赤","赤","×","×",
21    "×","×","赤","×","×","赤","×","赤","×","赤","×","×","×","赤","×","×",
22    "×","赤","赤","赤","×","赤","赤","赤","×","赤","×","赤","赤","赤","×","×",
23    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
24    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×",
25    "×","×","×","×","×","×","×","×","×","×","×","×","×","×","×","×"
26    ]
27];
28
29
30function init() {
31    container = document.createElement('div');
32    document.body.appendChild(container);
33
34    // カメラを作成する
35    camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
36    camera.position.x = 0;
37    camera.position.y = 0;
38    camera.position.z = 500;
39
40    // シーンを作成する
41    scene = new THREE.Scene();
42
43    // 立体ドット絵を作成する
44    group = createSheep();
45
46    // シーンに立体ドット絵を追加する
47    scene.add(group);
48
49    // ライトを作成する
50    var light = new THREE.DirectionalLight(0xffffff);
51    light.position.set(0, 0, 10).normalize();
52    scene.add(light);
53
54    // レンダラーを作成する
55    renderer = new THREE.WebGLRenderer();
56
57    // 背景色を指定する（空色に変更する）
58    renderer.setClearColor(0x4584b4);
59
60    // レンダラーのサイズを指定する
61    renderer.setSize(window.innerWidth, window.innerHeight);
62
63    // HTML との紐づけを行う
64    container.appendChild(renderer.domElement);
65}
66
67function createSheep() {
68    // 立体ドット絵をグループ化して返却する
69    var group = new THREE.Object3D();
70
71    // 箱を用意する
72    var geometry = new THREE.BoxGeometry(DOT_SIZE * 0.9, DOT_SIZE * 0.9, DOT_SIZE * 0.9);
73
74    // ドット絵の枚数ぶんループする
75    for (var j = 0; j < dataSet.length; j++) {
76
77        // ドット絵１枚のドット数ぶんループする
78        for (var i = 0; i < dataSet[j].length; i++) {
79
80            // ドット絵の表示座標を計算する
81            var x = (i % 16) * DOT_SIZE + X_START_POS;
82            var y = (16 - Math.floor(i / 16)) * DOT_SIZE + Y_START_POS;
83            var z = j * DOT_SIZE + Z_START_POS;
84
85            // ドット絵の色を取得する（"赤"→"#ff0000"に変換する）
86            var color = getRgbColor(dataSet[j][i]);
87
88            // ドットが "×" でなければ
89            if (dataSet[j][i] != "×") {
90                // 色を指定する
91                var material = new THREE.MeshLambertMaterial({color: color});
92
93                // 箱に色をつける
94                var mesh = new THREE.Mesh(geometry, material);
95
96                // 箱の位置を指定する
97                mesh.position.x = x;
98                mesh.position.y = y;
99                mesh.position.z = z;
100
101                // グループ化する
102                group.add(mesh);
103            }
104        }
105    }
106
107    // 立体ドット絵を返却する
108    return group;
109}
110
111function render() {
112    // 立体ドット絵をY軸に回転させる
113    group.rotation.y += Math.PI / 180;
114
115    // 表示を更新する
116    renderer.render(scene, camera);
117}

行動規範の内容に同意します

回答1件

ベストアンサー

コピペする時に関数やグローバル変数、関数の呼び出しなどいくつか漏れがあるようです。

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Happy New Year 2015</title>

<style type="text/css">* {
  margin: 0;
  padding: 0;
  border: 0;
  overflow: hidden;
}

</style>
</head>
<body>
<!-- three.min.js -->
<script src="http://threejs.org/build/three.min.js"></script>
<script src="index.js"></script>

</body>
</html>

var container;
var camera, scene, renderer;
var group;

var DOT_SIZE = 20;
var X_START_POS = -8 * DOT_SIZE;
var Y_START_POS = -8 * DOT_SIZE;
var Z_START_POS = -4.5 * DOT_SIZE;

// Jumping Sheep by cx20
// http://kyucon.com/qblock/#/63138
//
var dataSet = [
//省略
];

function getRgbColor( c )
{
	var colorHash = {
		"×":"#000000",
		"黒":"#000000",
		"灰":"#808080",
		"白":"#ffffff",
		"肌":"#ffcccc",
		"茶":"#800000",
		"赤":"#ff0000",
		"黄":"#ffff00",
		"緑":"#00ff00",
		"水":"#00ffff",
		"青":"#0000ff",
		"紫":"#800080"
	};
	return colorHash[ c ];
}

init();
animate();

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

    // カメラを作成する
    camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
    camera.position.x = 0;
    camera.position.y = 0;
    camera.position.z = 500;

    // シーンを作成する
    scene = new THREE.Scene();

    // 立体ドット絵を作成する
    group = createSheep();

    // シーンに立体ドット絵を追加する
    scene.add(group);

    // ライトを作成する
    var light = new THREE.DirectionalLight(0xffffff);
    light.position.set(0, 0, 10).normalize();
    scene.add(light);

    // レンダラーを作成する
    renderer = new THREE.WebGLRenderer();

    // 背景色を指定する（空色に変更する）
    renderer.setClearColor(0x4584b4);

    // レンダラーのサイズを指定する
    renderer.setSize(window.innerWidth, window.innerHeight);

    // HTML との紐づけを行う
    container.appendChild(renderer.domElement);
}

function createSheep() {
    // 立体ドット絵をグループ化して返却する
    var group = new THREE.Object3D();

    // 箱を用意する
    var geometry = new THREE.BoxGeometry(DOT_SIZE * 0.9, DOT_SIZE * 0.9, DOT_SIZE * 0.9);

    // ドット絵の枚数ぶんループする
    for (var j = 0; j < dataSet.length; j++) {

        // ドット絵１枚のドット数ぶんループする
        for (var i = 0; i < dataSet[j].length; i++) {

            // ドット絵の表示座標を計算する
            var x = (i % 16) * DOT_SIZE + X_START_POS;
            var y = (16 - Math.floor(i / 16)) * DOT_SIZE + Y_START_POS;
            var z = j * DOT_SIZE + Z_START_POS;

            // ドット絵の色を取得する（"赤"→"#ff0000"に変換する）
            var color = getRgbColor(dataSet[j][i]);

            // ドットが "×" でなければ
            if (dataSet[j][i] != "×") {
                // 色を指定する
                var material = new THREE.MeshLambertMaterial({color: color});

                // 箱に色をつける
                var mesh = new THREE.Mesh(geometry, material);

                // 箱の位置を指定する
                mesh.position.x = x;
                mesh.position.y = y;
                mesh.position.z = z;

                // グループ化する
                group.add(mesh);
            }
        }
    }

    // 立体ドット絵を返却する
    return group;
}

function animate() {
    requestAnimationFrame(animate);
    render();
}

function render() {
    // 立体ドット絵をY軸に回転させる
    group.rotation.y += Math.PI / 180;

    // 表示を更新する
    renderer.render(scene, camera);
}

投稿2017/08/14 23:54

編集2017/08/15 00:06