Hello all.
I am interested in figuring out how to take a grey scale image, and make it a mask maintaining the various levels of grey as various levels of transparency.
So black would be o% transparent and white would be 100% transparent.
I can't figure out a good approach to this.
The various key tools allow for filtering a range to a fully opaque mask, not what I want.
I want a variable matte, maintaining the variety of density driven by the greys.
Any direction appreciated.
Stay safe and well!
Casey
Creating Varied Transparency Mask Topic is solved
Re: Creating Varied Transparency Mask
The Scan cleaner would transfer a bw image into these transparencies, but TVP can't use this as a mask on a different layer the same way as it peserves alpha on the same layer.
TVP 10.0.18 and 11.0 MacPro Quadcore 3GHz 16GB OS 10.6.8 Quicktime 7.6.6
TVP 11.0 and 11.7 MacPro 12core 3GHz 32GB OS 10.11 Quicktime 10.7.3
TVP 11.7 Mac Mini M2pro 32GB OS 13.5
TVP 11.0 and 11.7 MacPro 12core 3GHz 32GB OS 10.11 Quicktime 10.7.3
TVP 11.7 Mac Mini M2pro 32GB OS 13.5
Re: Creating Varied Transparency Mask
Yes it can :)
You have to activate "Stencil" on the gray-level layer, and then it will only draw (in any layer) where there is already opacity in this layer.
You have to activate "Stencil" on the gray-level layer, and then it will only draw (in any layer) where there is already opacity in this layer.
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Quicktime is DEAD. Get over it and move on !
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Hironori Takagi
- Posts: 314
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- Location: Tokyo, Japan
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Re: Creating Varied Transparency Mask
I'm interested in this issue and created a custom panel that behaves the same as the After Effects plugin "Unmult".
Is your goal different from this?
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- WhiteOnOff_190607.tvpx
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TVPaint 11.7.2(Nov 14 2023), Windows11 Pro, HP Spectre x360 Convertible 14-ea0xxx / TVPaint 11.7.1(Dec 22 2022) Mac OS 11.6, Apple MacBookPro M1 2020
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pixelpusher
- Posts: 19
- Joined: 05 Nov 2013, 17:06
Re: Creating Varied Transparency Mask
Yes, my goal is different.
I am interested in maintaining the full 256 steps of potential variation in transparency of a mask, (or alpha whichever you prefer) driven by the grey scale of the source image(s).
So were it a full color image, first step is a black and white conversion. No problem. Then a conversion to a variable density mask/alpha image based on the grey scale. 0% black = 100% transparent, 25% black = 75% transparent 50% black = 50% transparent 75% black = 25% transparent 100% black = 0% transparent, and every step in between these as well. Equivalent to a gradient mask/alpha driven by the image.
Thanks for the interest and feedback on this.
Scan Cleaner does not do this in my estimation. It is more like the color keying tools and isolates a range that then is the mask/alpha.
I am interested in maintaining the full 256 steps of potential variation in transparency of a mask, (or alpha whichever you prefer) driven by the grey scale of the source image(s).
So were it a full color image, first step is a black and white conversion. No problem. Then a conversion to a variable density mask/alpha image based on the grey scale. 0% black = 100% transparent, 25% black = 75% transparent 50% black = 50% transparent 75% black = 25% transparent 100% black = 0% transparent, and every step in between these as well. Equivalent to a gradient mask/alpha driven by the image.
Thanks for the interest and feedback on this.
Scan Cleaner does not do this in my estimation. It is more like the color keying tools and isolates a range that then is the mask/alpha.
Re: Creating Varied Transparency Mask
Ok, I misunderstood...
Convert to B&W.
Then try the Luma Keyer with these values :
Because of data validation, you have to input the 255s from right to left...
Convert to B&W.
Then try the Luma Keyer with these values :
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Quicktime is DEAD. Get over it and move on !
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pixelpusher
- Posts: 19
- Joined: 05 Nov 2013, 17:06
Re: Creating Varied Transparency Mask
Thanks ematecki!
This was a great solution to what I was trying to do!
I so appreciate your assist.
Be well and thank you!
This was a great solution to what I was trying to do!
I so appreciate your assist.
Be well and thank you!