Compositing in 3ds Max and V-Ray

[JamesL]

From what I can tell it doesnt seem to add explicitly to render times, although the saving out of the extra passes takes extra time on the end (particularly if you're saving to 32-bit formats).

[WAcky]

As far as I'm aware these elements are all computed for the final rgb pass so in theory they shouldn't add to render time. But thats just a guess, they could also require some ram usage too. I seem to recall hearing that rendering out elements will in fact add render time.

 

It might be worth a look around the chaos forums but it might be a difficult search.

[Nic H]

extra-tex elements will add to the render time, for example adding a vray dirt extratex can really really increase render times on complex scenes.

 

haven't noticed a increase in the other elements as they get calculated as part of the scene anyhow

 

i started a Nuke course last night as well, so should have something more to add in a few weeks on proper workflows.

[WAcky]

Yeah I've seen a couple of vids on comping vray passes in nuke and fusion, but even they neglect to address the issue.

 

Un-multiplying, applying affects, re-multiplying and plugging into the workflow for each element...sounds tedious.

[John Dollus]

It's not so bad. In Nuke, you can setup a script that handles the shuffling of the passes much like the actionscript that's out there for handling them in photoshop.