AE CS6 - 3D Compositing and Color Correction workflow
Hello everybody,
I have some questions about work flow in AE concerning compositing and Color Correction. I saw many tuts about (f.e. Lynda.com Premiere Pro Color Correction and Enhancement... and tuts by Andrew Davis here in creative.cow).
Essentially, he have this CC work flow:
GRADING (primary and secondary)
Adjusting Tonality (Brightness and Contrast)
Adjusting Colors (White balance and fix color dominance)
MATCHING
Conforming colors of different clip shoted with different camera and lighting set up.
ENANCHING LOOK
Giving to all clips a unique "look"
But what does it happen if we have NOT just some clips but ALSO a 3D object (rendered in a 3d sw or, actually also a 3d object inserted by 3D Element by videocopilot)
or/and
a keyed clip from a green screen shot?
How does this footage (3d object and green screen keyed shot) transform
the aforementioned work flow?
We have to consider that this footage (3d object and green screen keyed shot) must to be pre-multiplied to make a right compositing but when you make CC it must be again "straight"... (NOT pre-multiplied)
Is really hard also understand how dale this work flow between AE and Pre Pro if you want to make CC in Pre Pro after compositing in AE.
I try to present a work flow for this (very common) situation:
I have a landscape clip as a background
a keyed clip (pre-multiplied) with a Character watching sky
and a 3d (pre-multiplied) object U.F.O. on sky.
When I have done compositing, how make I a right CC of all footage if I have two clip (3d object and green screen keyed shot) still pre-multiplied?
I think, but I'm not sure, that should be a good idea to send to Pre Pro a composited Comp with separate layers (by dynamic links) to have all single separate layers (Background, 3d object and green screen keyed shot.. but also the Color Warping...!). Than, in Pre Pro you should make a CC (Grading) just for a BG and than try to Match (Matching) this color corrected BG with 3d obj and keyed shoot. But we have a problem at this point cause our 3d object and green screen keyed shot are still pre-multiplied, and before make matching we have to re- multiplied theme, but how? And if we re pre-multiplied them, compositing will be also right?
Or maybe, before exporting comp from AE to Pre Pro, he have to create both layers for 3d object and green screen keyed shot, one pre-multiplied and one "Stright"? But, again, how to combine them to have a right compositing and a a right CC?
Anybody can help me to understand or maybe suggest any tuts to dale this common issue in AE- Pre Pro?
Many, many thanks!