VVVV Gamma ,Make the black parts in the texture transparent

I want to make the black parts in the image below transparent, but I’m not sure how to do it. Is there a Node or NuGet package that allows setting transparency based on color, or is there a better approach?
mask

If you want to make a mask and blend it with another texture use a Blend node!

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I would suggest to do it so:

  1. Take any texture
  2. Make it Black and White in any way you like.
  3. Apply this BW as AlphaMask for SetAlpha.

image

In your example, you just need to make a contrast higher, so that the gray area will be white.

Best,
Anton

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