|09 September 2011||#1|
Join Date: Oct 2002
Switching to Multi Channel OpenEXR
Until now my workflow has involved rendering separate passes from Cinema 4D and VRay then compositing in Nuke. Each pass is brought in with a separate read node and then multiplied and plussed together:
((Lighting/Diffuse) x Diffuse) + reflection + refraction + specular + GI
Cinema 4D R13 has added support for multi channel EXRs and I'm wondering how I should comp these together in Nuke?
Would the 'proper' way be to read in the multi channel EXR, then, for the diffuse x Raw Light for instance:
Attach both A and B inputs from a merge node to the same read node. Then in the merge settings choose Diffuse as the A channel and Raw Light as the B channel? (see attached image)
Or should I use an Expression node? (see attached image)
Do people tend to use the beauty pass and just use the other passes to add or subtract from that?
Any help would be much appreciated.
|09 September 2011||#2|
Grizzly Country, Canada
Join Date: Mar 2005
The most common method (I've seen) is to split out multi-channel EXRs into shuffle nodes and then rebuild the AOVs using Plus, Multiply, etc nodes.
|09 September 2011||#4|
Join Date: Sep 2003
Thread automatically closed
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
|Thread Closed share thread|