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Working with masks
Hello,
As a relative newcomer to Resolve, I am looking for a strategy to soften the edges of a mask on the level of the alpha, not the image. As I cannot go back to the compositeur, I am looking to add to the feathering of the masks edges in an easy and efficient manner. If I could find a way to do this in a localized as opposed to a global way, even better. I am sure there is a parameter for this somewhere here, but can’t find it…Cheers,
CB -
7 Replies
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It’s not there, it’s my nr one feature wish right now.
The only thing you can do is converting your mask into color and use the blur tool which very limited in diameter .
And then lumakey it back.
A real mask tool it what we should have with infinity ( slow I know ) blur and grow and shrink capabilities based on the pixels, not on the color.A slice of color…
DaVinci 8.0.1 OSX 10.7
MacPro 5.1 2×2,4 24GB
RAID0 8TB eSata 6TB
GTX 470 / GT 120
Extreme 3D+ WAVE -
Thanks for letting me know Sascha. Kinda confirms what I feared.
As a newcomer to Resolve, I am deeply impressed by the quality of the qualifiers and handling of noise. So many times I find now that I can get away without masking compared to other grading apps in the past. However, in terms of working with alphas and whatnot, it still seems a little underdeveloped.
Thanks for saving me the time of looking for what is not yet there…:-) -
The reason for this might be the whole CUDA thing.
I had the exact same request for Scratch three years ago.
In the beginning they said it couldn’t be done in OGl, which was true.
Or still is.
But the Mistiaka and Nucoda and the other players did it CPU based and one day it was there.
And yes, it limits playback speed to 2-3 frames per second.
But with a working cache system, this is no biggy.
I rather prerender stuff to HD than export it for compositors.
So, yes please, more cowbell 🙂A slice of color…
DaVinci 8.0.1 OSX 10.7
MacPro 5.1 2×2,4 24GB
RAID0 8TB eSata 6TB
GTX 470 / GT 120
Extreme 3D+ WAVE -
[Sascha Haber] “The reason for this might be the whole CUDA thing.
I had the exact same request for Scratch three years ago.
In the beginning they said it couldn’t be done in OGl, which was true.
Or still is.
But the Mistiaka and Nucoda and the other players did it CPU based and one day it was there.
And yes, it limits playback speed to 2-3 frames per second.
But with a working cache system, this is no biggy.
I rather prerender stuff to HD than export it for compositors.
So, yes please, more cowbell :)”Ah interesting. so you are saying this can be done in Scratch?
I have never actually worked with masks in Scratch. But I do love it for so many other things. Great interface. What is the workflow then? Could not find the actual procedure anywhere on the net… -
Hi Clayton,
Could you explain a little more in detail what you are looking for?
Is this mask coming in from an external file, or are you generating this mask within Resolve.
If coming from outside, we have a way to blur the external mask, and if within Resolve, of course, we have the defocus tool for the alpha.
Thanks,
Rohit -
The masks are independent alpha files (prores 422) generated in After effects. Definitely would like to blur them in Resolve though (I guess through defocus as you say) and even better would be to find an EXPEDIENT way to blur only certain parts of a mask locally (just the hair on someone’s head for example as they change directions through a shot).
If we are speaking about generating them in Resolve, it probably means using garbage masks too, because I am not sure what there is in the way of ROTO solutions. I do often use the roto/paint tool in AE which is very convenient for quick solutions, but limited in the degree of maximum blurring controls for output…
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Should clarify, I understand the staging process and creating masks in Scratch, but can’t seem find to much on working with imported masks…
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