Working with masks in Resolve?

DaVinci Resolve

Working with masks in Resolve?

Posted by Clayton Burkhart on October 10, 2011 at 7:03 am

I currently have someone rotoscoping several scenes for a short film in order to isolate several different elements for individual color correction of each. As a recent newcomer, I am wondering what is the best output for these masks in terms of working in Resolve? The film is in Prores422. Can I assume that he merely needs to output an alpha layer in Prores 4444 or is there some other more convenient output that Resolve accepts, especially considering that I will be working with not just one, but rather up to 4 different masks?
Are there any specific limitations I should be aware of, or special parameters that I need to give the rotoscoper for his outputs?

Christian Betong replied 14 years, 6 months ago 3 Members · 4 Replies
4 Replies

Dan Moran
October 10, 2011 at 9:35 am

Hi Clayton,

Resolve does not read embedded alpha channels currently.

The best route forward is to get him to output a DPX file of the mattes.

The benefit of this is you can have one matte in each channel so one in Red one in Green and one in Blue etc..

I think this is the best way forward for you but if you have any more questions please do drop me a mail at davincihelp@blackmagic-design.com

Thanks!

D

Dan Moran
DaVinci Application Specialist
Blackmagic Design EMEA
Clayton Burkhart
October 10, 2011 at 9:40 am

Hey thanks for that info, Dan.
Just out of curiousity, do you have vids online which show a typical DPX workflow like the one you are describing?
Dan Moran
October 10, 2011 at 11:29 am

Hi Clayton,

I don’t have any videos at the moment but if you drop me a mail I’ll be able to guide you through it.

Thanks,

D

Dan Moran
DaVinci Application Specialist
Blackmagic Design EMEA
Christian Betong
October 10, 2011 at 6:17 pm

My colleague is supplying me with mattes for the VFX he is doing on a TV-series I am grading now.

He gives med Black and white mattes in prores 422 HQ (we need to keep the files small)

This works great!

He gives me the VFX shot + black&white matte.

Then in the “browse” tab I import the VFX shot into the media pool. Then I highlight the imported VFX shot in the “Media Pool”, and keeping it highlighted, I right click the black&white matte file in the clip details window and “add as matte”

Then you can rightclick on a node for that shot and “use matte(?)” (dont remember the wording of the menu item for the node) and grade the matte area separate.

Hope this helps. Excuse my bad english.

Christian Berg-Nielsen
Sement&Betong
postproduction
Norway

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