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semmel
09-01-2011, 08:03 AM
Hi there,
I'm making an underwater movie for a student project. It's about a puppet head that goes deeper and deeper in the ocean. We tried to make the lighting in Maya, but we just couldn't get it right, the fog just didn't cut it, so we decided to do it in the postproduction, however, we still can't quite figure it out. We're all quite new to Nuke, so we're not sure how to do it.

Here's how I tried it:
I renderet out a depth pass and merged it via screen with the colour pass (I just put some randomly coloured lamberts on for preview purposes)
http://img.photobucket.com/albums/v222/semmel/nodes.jpg

I looked through a lot of tutorials and googled everything, but there's not a lot of stuff concerning this matter

I'd appreciate any help, thanks in advance!

kyrgr
09-04-2011, 06:02 PM
It's not clear what you want to ask. If you
go 2d what's a depth pass for?

semmel
09-05-2011, 08:32 AM
I'm sorry, I haven't been clear.What I want is to have an underwater effect & lights, so that it looks like it's really underwater. I have the depth pass to have sort of an underwater environment fog

kyrgr
09-05-2011, 06:05 PM
You may try a color correction with master
gain more blue, make 3d card,toolsets-particle-
fogbox and animate z-scale. That gives an illusion
of plankton flying like dust. I trust you can set the
3d camera( i set z=2 ). In fact i never tried something
similar (I'm also new in Nuke).
Later edit: the fogbox works fine with a transform
geo (scaledown) but the lights are killing me.
They don't seem to cut the fog or make a projector
effect. Either Nuke 3d lights are crap or i can't
figure them out (the spotlight even shows in rendering
and rendering is too slow).

kyrgr
09-08-2011, 08:16 PM
I think your best bet is filter-volumeRays.
It's worth a try. Use as img a real underwater
photo and merge-matte the volumeRays as
A and your footage as B.You can still make
3d card and use a fogbox afterwards.

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