Use Camera Path -- Explanation?

I didn’t even know about this new feature, “use camera path” until today. It sounds interesting, as I “guess” it helps with animated objects, but I don’t really understand it.

I don’t see any mention of it in the Help -- can someone explain what it does, when you should use it and when you shouldn’t? Please?

There was a pretty good thread on it not too long ago

It is mentioned in the V-Ray help index here:

Best regards,
Vlado

Aha… thanks Vlado. I just realized my bookmark pointed to an OLD version of the Vray manual and that’s why I couldn’t find any info. I had no idea there was an updated manual available.

But I still have a question -- if you’re rendering a moving objects animation, is there any reason you would NOT want to use this switch?