Slow rendering with pre-calced IR / LC maps

V-Ray for 3ds Max V-Ray for 3ds Max :: General
1

I have a scene that is set up using “from file” for both IR and LC. I have pre-calculated both and they are about 150megs each. When I render the scene using DR, a frame takes 19 minutes.

If I just render the scene without loading the pre-calced maps, and let it calculate the LC and IR at render time, the same frame only takes 11 minutes.

Am I missing something? I was under the impression that using pre-calced maps was faster? Any help / insight would be greatly appreciated.

D

2

Are you using a network to store the files on? Distributing large LC and IR maps can take quite a while especially if you have multiple nodes hitting your server at the same time. Is it hanging at the pre-calc stage? A work around is to copy these files to each node and set the path to load the files locally.

3

Thanks for the reply. I’m AM storing it on a network, but I will try your local copy idea.

D