Three.js立方体不显示对角线

2016-05-18  金城  1805

同问:Three.js中创建的立方体只显示它的12条边

描述:用 THREE.BoxGeometry 创建的立方体有对角线,无法去除。

解决方法:其他方法重建模型

// 画直线
functiondraw_line(v1,v2,color){var geometry=new THREE.Geometry();geometry.vertices.push(v1,v2);return new THREE.Line(geometry,new THREE.MeshPhongMaterial({emissive:color,color:color}));}
// 画立方体线
functiondraw_cube(width,height,depth,color){
 varhw=(width||200)/2,
   hh=(height||200)/2,
   hd=depth/2,
   c=color||0xff0000;

 varcube=newTHREE.Object3D();

 cube.add(newdraw_line(newTHREE.Vector3(-hw,-hh,-hd),newTHREE.Vector3(hw,-hh,-hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(-hw,hh,-hd),newTHREE.Vector3(hw,hh,-hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(-hw,-hh,hd),newTHREE.Vector3(hw,-hh,hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(-hw,hh,hd),newTHREE.Vector3(hw,hh,hd),c));

 cube.add(newdraw_line(newTHREE.Vector3(-hw,-hh,-hd),newTHREE.Vector3(-hw,-hh,hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(-hw,hh,-hd),newTHREE.Vector3(-hw,hh,hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(hw,-hh,-hd),newTHREE.Vector3(hw,-hh,hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(hw,hh,-hd),newTHREE.Vector3(hw,hh,hd),c));

 cube.add(newdraw_line(newTHREE.Vector3(-hw,-hh,-hd),newTHREE.Vector3(-hw,hh,-hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(hw,-hh,-hd),newTHREE.Vector3(hw,hh,-hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(-hw,-hh,hd),newTHREE.Vector3(-hw,hh,hd),c));
 cube.add(newdraw_line(newTHREE.Vector3(hw,-hh,hd),newTHREE.Vector3(hw,hh,hd),c));

 return cube;
}
//var box=draw_cube(100,100,100,0x008000);
//scene.add(box);

例如:http://softsrc.cc(请用Firefox,Chrome,Opera,Edge浏览器查看)