Colormath screen operation

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sarmath
Posts: 84
Joined: Wed Feb 07, 2018 1:22 pm

Colormath screen operation

Post by sarmath » Thu Jan 16, 2020 4:11 pm

Is it possible that we get screen operation (similar to cycles) in colormath node? Its very useful when mixing imperfection black and white textures.
Thanks
Windows 10 Pro i7 5820k 2xGTX 1070ti 16 GB RAM

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B.Y.O.B.
Developer
Posts: 3091
Joined: Mon Dec 04, 2017 10:08 pm
Location: Germany
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Re: Colormath screen operation

Post by B.Y.O.B. » Thu Jan 16, 2020 4:42 pm

For the time being, you can build it out of basic nodes.
The operation can be found here: https://photoblogstop.com/photoshop/pho ... -explained
result = 1−(1−A)×(1−B)

Node setup, upper left Cycles, bottom Lux:
Attachments
Nodes
Nodes
Lux
Lux
Cycles
Cycles

sarmath
Posts: 84
Joined: Wed Feb 07, 2018 1:22 pm

Re: Colormath screen operation

Post by sarmath » Thu Jan 16, 2020 8:12 pm

Thanks for your help, will try it. :!: :)
Windows 10 Pro i7 5820k 2xGTX 1070ti 16 GB RAM

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