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How make normal maps for planets?


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7 hours ago, ModerndayLink64 said:

When using standard normal maps, an error occurs. To fix this error, you need to save normal maps with an alpha channel (in order to get a normal maps in RGBA format). And I don't know how to make this alpha channel.STZC6rz.png

Edited by Danilka
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  • 4 weeks later...

It's going to be drawing-tool specific, but look for some menu or dialog that mentions "channels" and typically there will be an option to add an alpha channel there.

 

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  • 6 years later...

So its been some time since I made a planet, but I am trying to make a titan analogue (Tekto is nice, but not what I'm looking for), and I'm having the same problem.

I don't remember what I did last time.

Can anyone tell me what needs to be done to generate a proper normal map from a heightmap?

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