Rendering Issue

[marksee]

Has anyone ran into a problem w/ Vray/backburner where after calculating irradience and light cache maps the rendering times jump 10 fold? I am working on a scene that takes less than 8 minutes to calculate both maps and render, but when I choose from file and point to the two maps the render time jumps to over an hour and 40 minutes -- same settings, same computers. To check if it was a connection issue I loaded the maps on the local computer as opposed to accessing them via the network and no change. I am in viz 08 and vray 1.5 - using backburner.

 

After looking into things further I am convinced that the problem is in the irradience map. I got an error during calculation that said -after calculating- error saving irr. map and it would re-render that scene and be fine. I set both primary and secondary to light cache and the frames are rendering in a little over 2 minutes. Any suggestions?

Edited August 14, 2008 by marksee
**update**

[Scott Schroeder]

I've never ran into this problem, but I do remember there being another post on here about it. You might want to search for it, I don't know if they came up with a solution though. Your best bet for stuff like this is the chaos forum. There is way better technical support and a much deep knowledge base on that forum than this one. Not that this forum is bad or anything, but the chaos forum is just bigger and has more activity.

[LukeC]

Possibly a network or permissions issue? Have run into problems because of them before that sound similar.

[Dave Buchhofer]

animated objects somewhere? apparently when theres parts of the render that need to be 're-calculated' or that dont have information on them in the irradiance map, then they can get to be quick slow.