Camera.cullingMask常用操作

• camera.cullingMask = 0 ; //都不渲染
• camera.cullingMask = -1; //都渲染
• camera.cullingMask = ~( 1 << x）; //渲染除去层x的所有层
• camera.cullingMask &= ~（1<< x）; //关闭层x
• camera.cullingMask |= ( 1 << x ); // 打开层x
• camera.cullingMask = 1 << x + 1 << y + 1 << z; // 摄像机只显示第x层,y层,z层.