<script src="/lib/three.js"></script>
<script src="/lib/js/utils/SceneUtils.js"></script>
<script src="/lib/js/utils/GeometryUtils.js"></script>
<script src="/lib/js/controls/OrbitControls.js"></script>
<script src="/lib/js/libs/stats.min.js"></script>
<script src="/lib/js/libs/dat.gui.min.js"></script>
<script>
var renderer;
function initRender() {
renderer = new THREE.WebGLRenderer({antialias: true});
//renderer.setClearColor(new THREE.Color(0xEEEEEE, 1.0)); //设置背景颜色
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
}
var camera;
function initCamera() {
camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 10000);
camera.position.set(0, 200, 500);
}
var scene;
function initScene() {
scene = new THREE.Scene();
}
var light;
function initLight() {
scene.add(new THREE.AmbientLight(0x404040));
light = new THREE.DirectionalLight(0xffffff);
light.position.set(1, 1, 1);
scene.add(light);
}
function initModel() {
//轴辅助 (每一个轴的长度)
object = new THREE.AxesHelper(50);
scene.add(object);
}
//生成模型
function createMesh(geom) {
//设置当前的模型矩阵沿xy轴偏移,让图片处于显示中心
geom.applyMatrix(new THREE.Matrix4().makeTranslation(-250, -100, 0));
// 创建法向量纹理
var meshMaterial = new THREE.MeshNormalMaterial({
flatShading: THREE.FlatShading,
transparent: true,
opacity: 0.9
});
// 创建一个线框纹理
var wireFrameMat = new THREE.MeshBasicMaterial();
wireFrameMat.wireframe = true;
// 创建模型
var mesh = THREE.SceneUtils.createMultiMaterialObject(geom, [meshMaterial, wireFrameMat]);
return mesh;
}
//初始化性能插件
var stats;
function initStats() {
stats = new Stats();
document.body.appendChild(stats.dom);
}
//用户交互插件 鼠标左键按住旋转,右键按住平移,滚轮缩放
var controls;
function initControls() {
controls = new THREE.OrbitControls(camera, renderer.domElement);
// 如果使用animate方法时,将此函数删除
//controls.addEventListener( 'change', render );
// 使动画循环使用时阻尼或自转 意思是否有惯性
controls.enableDamping = true;
//动态阻尼系数 就是鼠标拖拽旋转灵敏度
//controls.dampingFactor = 0.25;
//是否可以缩放
controls.enableZoom = true;
//是否自动旋转
controls.autoRotate = false;
//设置相机距离原点的最远距离
controls.minDistance = 20;
//设置相机距离原点的最远距离
controls.maxDistance = 10000;
//是否开启右键拖拽
controls.enablePan = true;
}
//生成gui设置配置项
var gui;
var text1,text2;
function initGui() {
//声明一个保存需求修改的相关数据的对象
gui = {
size: 90,
height: 90,
bevelThickness: 2,
bevelSize: 0.5,
bevelEnabled: true,
bevelSegments: 3,
curveSegments: 12,
steps: 1,
fontName: "helvetiker",
fontWeight:"bold",
weight: "normal",
font:null,
style:"italics",
changeFont:function () {
//创建loader进行字体加载,供后面的模型使用
var loader = new THREE.FontLoader();
loader.load( '/lib/fonts/' + gui.fontName + '_' + gui.fontWeight + '.typeface.json', function ( response ) {
gui.font = response;
gui.asGeom();
} );
},
asGeom: function () {
// 删除掉原来的旧模型
scene.remove(text1);
scene.remove(text2);
// 重新创建模型
var options = {
size: gui.size,
height: gui.height,
weight: gui.weight,
font: gui.font,
bevelThickness: gui.bevelThickness,
bevelSize: gui.bevelSize,
bevelSegments: gui.bevelSegments,
bevelEnabled: gui.bevelEnabled,
curveSegments: gui.curveSegments,
steps: gui.steps
};
text1 = createMesh(new THREE.TextGeometry("Learning", options));
text1.position.z = -100;
text1.position.y = 100;
scene.add(text1);
text2 = createMesh(new THREE.TextGeometry("Three.js", options));
scene.add(text2);
}
};
var datGui = new dat.GUI();
//将设置属性添加到gui当中,gui.add(对象,属性,最小值,最大值)
datGui.add(gui, 'size', 0, 200).onChange(gui.asGeom);
datGui.add(gui, 'height', 0, 200).onChange(gui.asGeom);
datGui.add(gui, 'fontName', ['gentilis', 'helvetiker', 'optimer']).onChange(gui.changeFont);
datGui.add(gui, 'fontWeight', ['regular', 'bold']).onChange(gui.changeFont);
datGui.add(gui, 'bevelThickness', 0, 10).onChange(gui.asGeom);
datGui.add(gui, 'bevelSize', 0, 10).onChange(gui.asGeom);
datGui.add(gui, 'bevelSegments', 0, 30).step(1).onChange(gui.asGeom);
datGui.add(gui, 'bevelEnabled').onChange(gui.asGeom);
datGui.add(gui, 'curveSegments', 1, 30).step(1).onChange(gui.asGeom);
datGui.add(gui, 'steps', 1, 5).step(1).onChange(gui.asGeom);
//调用生成一次图形
gui.changeFont();
}
function render() {
renderer.render(scene, camera);
}
//窗口变动触发的函数
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
render();
renderer.setSize(window.innerWidth, window.innerHeight);
}
function animate() {
//更新控制器
controls.update();
render();
//更新性能插件
stats.update();
requestAnimationFrame(animate);
}
function draw() {
initRender();
initScene();
initCamera();
initLight();
initModel();
initControls();
initStats();
initGui();
animate();
window.onresize = onWindowResize;
}
</script>
标签:function,gui,THREE,JS,add,new,var,TEXTGEOMETRY
From: https://blog.51cto.com/u_16103408/7066389