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Old 11-26-2012, 09:26 PM   #1
New Member
Denver, USA
Join Date: Nov 2011
Posts: 6
Nuke and Vray passes

Hey everyone!!

So I'm playing around with the PLE of Nuke to try and get a hang of it, as well as to see what it's all about. I was wondering, for an animation I'm working on I'm using Vray Render Elements and saving them out as 16bit multichannel EXR's (I can't afford the space a 32bit takes up).

One end of my question is this, which are the best elements that I should be selecting? Which benefits more, a raw pass or a regular, such as rawShadow versus Shadow, or rawGI vs GI. The main passes I'm going for are: Diffuse, GI, Shadow, Reflection, Refraction, Lighting, AO (vrayDirt), Velocity, and zDepth. Are there any other ones I should consider?

The other part is, is there anything I can do in Nuke to tweak or enhance my GI pass to make it less grainy or am I restricted to the actual render settings in Vray?

Old 11-27-2012, 11:05 AM   #2
michael vorberg
digital compositor
stuttgart, Germany
Join Date: Sep 2009
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Originally Posted by DudeAndy

The other part is, is there anything I can do in Nuke to tweak or enhance my GI pass to make it less grainy or am I restricted to the actual render settings in Vray?

didnt try this myself but it looks promising:
Old 01-21-2013, 05:23 PM   #3
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Gregory Chalenko
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NHB Studios
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Lightbulb Introduction to Multi-Pass Compositing

Old 02-01-2013, 10:35 AM   #4
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Christian Kragh
Method Studios
Copenhagen, Denmark
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Posts: 326
16bit openEXR should be fine, we use that all the time.

If you just want to create a beauty with the base elements, the passes I use are:


And if I have this in my scene:

Self illumination

Just create a merge node (M), and set it to plus.

If you want to recreate the light with light selects, remember to disable lighting and specular.
Old 02-01-2013, 10:35 AM   #5
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