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Petros Proestos avatar image
Petros Proestos asked ·

How to assign one png bitmap as base color+opacity?

As you see in the picture, I clone the same png twice and for the one

I assign to opacity map I check these two options to enable it's transparency.

My question is:

Instead to clone it, is it possible to do this with one only bitmap?

Using color correct or other option...

transparencymask
question.jpg (490.0 KiB)
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Stephen Blair avatar image
Stephen Blair answered ·

You have two options:

  • copy the bitmap, and set one to have it's RGB output to grayscale alpha
  • use the OSL BitmapLookup instead, which has separate Alpha output
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Petros Proestos avatar image
Petros Proestos answered ·

I exprerimented a little and I found also that if I wire beween bitmap and opacity map a Color Correction map with all channels set to Alpha, does also the result I seek...

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Petros Proestos avatar image
Petros Proestos answered ·

.I used OSL. What a great material... thx Stephen! :)

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