three js 球体材质之谜

代码

球体形状里面的纬度参数会影响他的最终效果呈现，详见下：

1

new THREE.SphereGeometry(1/2, 18, 12, Math.PI / 2, Math.PI, 0, 1 * Math.PI / 2),

2

new THREE.SphereGeometry(1/2, 18, 12, Math.PI / 2, Math.PI, 0, 2 * Math.PI / 2),

3

new THREE.SphereGeometry(1/2, 18, 12, Math.PI / 2, Math.PI, 0, 3 * Math.PI / 2),

4

new THREE.SphereGeometry(1/2, 18, 12, Math.PI / 2, Math.PI, 0, 4 * Math.PI / 2)

12

new THREE.SphereGeometry(1/2, 18, 12, Math.PI / 2, Math.PI, 0, 12 * Math.PI / 2)

23

new THREE.SphereGeometry(1/2, 18, 12, Math.PI / 2, Math.PI, 0, 23 * Math.PI / 2)
23是最大了，24点时候就消失了。