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Applying effects only to certain objects
show user profile  hkstr
I have made an animated scene (.max format) with 2 objects: a sphere partially obscuring a cube that is behind it.
I was wondering how I could apply an effect, but only to the cube. Note that the effect cannot be done in Max, which doesn't have it, but in After Effects.
I know the usual "effect applying" workflow: render animation to still images, run them thru After Effects, apply the effect.
So :
1) how can I render a set of stills (for AE) with only the cube in them, and after applying the effect...
2) ...what do I do then to reunite it with the sphere as was originally planned?
read 273 times
9/22/2016 6:48:55 PM (last edit: 9/22/2016 6:48:55 PM)
show user profile  9krausec
Try using a multimatte pass-

Should be something like it in mentalray/Arnold as well as Vray. Scanline too I'd assume.

That or render your objects on different render layers and combine them in post.

If you are newer to rendering please keep in mind to always render animations to a image sequence and not directly to a video. This gives you more control and helps if something goes wrong mid render.

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read 272 times
9/22/2016 6:58:49 PM (last edit: 9/22/2016 6:58:49 PM)
show user profile  hkstr
read 262 times
9/22/2016 9:13:38 PM (last edit: 9/22/2016 9:13:38 PM)
show user profile  9krausec
No problem. What render-er are you working with?

Edit: Also check out the 'shift channels' and 'choke matte' effects in AE. They'll help you extract various colors of the matte Pass.

I always like to put my MultiMatte pass in a subcomp too. Apply the shift channels and any choker in there. Then I use the Alpha from that sub-comp as a layer mask.

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read 260 times
9/22/2016 9:22:20 PM (last edit: 9/22/2016 9:24:02 PM)
show user profile  hkstr
The default renderer- Scanline.
read 246 times
9/23/2016 7:58:43 AM (last edit: 9/23/2016 7:58:43 AM)
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