| count | The number of bounding spheres being used. |
Sets the number of bounding spheres in the bounding spheres array that are actually being used.
For performance reasons, you should not repeatedly re-allocate your bounding spheres array as new spheres are added and removed; instead you should create one array at the maximum size you will need, and then track the number of spheres that are actually being used within it. This way you avoid expensive allocation and copy operations.