Fixed-radius neighbour predicate

Scripting Issues
1

I’ve got to determine whether there is a at least one NodePath within a certain radius of the camera. Brute force always works, but I’m guessing it could be done faster with a collision sphere.

Would I have to put some sort of collision solid on each of the NodePaths I was to detect, or can I get away with just a sphere around the camera? I really can’t say I’m good with collisions and if I tried to answer this myself I’d probably have too many bugs to get the right answer anyhow.

Thanks!

2

That depends on whether you want to test for collisions with the geometry of the other models (which will be pretty slow) or with a sphere surrounding those models (which will be a rather fast calculation, but won’t be accurate to a per-polygon level of course).