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So I have looked around some website, there is something interesting. The model is using 2 normals.

enter image description here

This normal is used to define the wrinkle of the cloth.

Then there is this normal:

enter image description here

This normal is used to define the bump of the texture in tiny part of the texture. So this normal is used multiple times for each small parts of the texture.

How can I achieve this is blender with PBR model?

Alvin Stefanus
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  • Hello :). So - you want to combine normal maps? Like, use both on the same faces at once? – jachym michal Jan 26 '21 at 09:04
  • Yes, correct, because the problem if I only use 1 normal and it is converted to low res, the small detail of the 2nd normal will be really bad – Alvin Stefanus Jan 26 '21 at 09:08
  • Hello, actually no, the link you gave me have not resolve my question. In that link, it is combining 2 different normal map with both of them are the same size and proportion. In my case this is different, because 1 of the normal map is the layout of the object, another one is much smaller chunk piece of the texture. In your link there is no code which do this. – Alvin Stefanus Jan 26 '21 at 12:25
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    Hey :). Well, you can just scale the texture using a Mapping node. The principle should be the same. Or perhaps explain better how you're using the smaller texture. – jachym michal Jan 26 '21 at 12:35

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