[英]How to construct a 3D cube using javascript with THREE.js (without box/cube geometry)?
這就是我所擁有的。 多維數據集的幾何。 我搞砸了進入的面孔。 我的項目是JSFiddle上的Bizzare牆 。 還有什么是執行輪換的好方法? 我在項目中使用的是由於旋轉而使牆破裂。 感謝您的幫助。
function initGeom(){
/**TODO: optimize, to keep it simple in my mind I
pictured divided the cube into six squares but
I duplicated some of the vertices.
*/
var cubeGeom = new THREE.Geometry();
var verts = [//front
new THREE.Vector3(0,0,0),//0
new THREE.Vector3(cubeSize,0,0),//1
new THREE.Vector3(cubeSize,cubeSize,0),//2
new THREE.Vector3(0,cubeSize,0),//3
//back
new THREE.Vector3(0,0,cubeSize),//4
new THREE.Vector3(cubeSize,0,cubeSize),//5
new THREE.Vector3(cubeSize,cubeSize,cubeSize),//6
new THREE.Vector3(0,cubeSize,cubeSize)//7
];//15
var faces = [//===Face1===(front)WORKS!
new THREE.Face3( 0, 3, 2),//Top Left Tri 2,3,0
new THREE.Face3( 2, 1, 0),//Bottom Right Tri 0,1,2
//===Face2===(right)// WORKS!
new THREE.Face3( 5, 1, 2),//Top Left Tri 2,1,5
new THREE.Face3( 2, 6, 5),//Bottom Right Tri 5,2,6
//===Face5(Left)===WORKS!
new THREE.Face3(0, 4, 7),//Top Right Tri 7,4,0
new THREE.Face3(7, 3, 0),//Top Right Tri 0,3,7
//===Face3===(top)//WORKS!
new THREE.Face3( 2, 3, 7),//Top Left Tri 7, 3, 2
new THREE.Face3( 7, 6, 2),//Bottom Right Tri 2,6,7
//===Face 6(bottom)===(optimized) go back to
new THREE.Face3(1, 0, 4),//Left tri 0,3,6
new THREE.Face3(6, 4, 0),//Right tri 6,4,0
//===Face4(back)===//some how is the front?
new THREE.Face3(4, 5, 6),//bottomLeft Tri 6,5,4
new THREE.Face3(6,7, 4), //Top Right Tri 4,7,6
];
cubeGeom.vertices = verts;
cubeGeom.faces = faces;
//scene.add(cubeMesh);
return cubeGeom;
}
有什么理由不希望使用現有的THREE.BoxGeometry
嗎? 旋轉對象的最簡單方法是使用網格物體的rotateOnAxis
方法。
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