How to apply texture with “skin/tattoo”? Is there a way how to do it with Material (one basic diffuse texture and one with tattoo in some other channel)? Or do I have to create a new texture by myself and then use this texture as a diffuse texture for the Material?
You can use detail map, but for this you’d need to configure it using scripts.
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If you’re using a basic material setup, one common approach is to use a layered shader or material blend. Many software (like Blender or Substance Painter) allow you to overlay multiple textures on a single material. For instance, you can use a base diffuse texture for the skin and then overlay the tattoo in a separate channel, often using a mask to control where it shows up.
In Blender, for example, you can set up a mix shader with your base skin texture connected to one input and the tattoo texture connected to the other. Use a black-and-white mask to determine where the tattoo appears. This way, you don’t have to bake a new texture every time you want to tweak the design.
If you’re planning to export the texture for a game or other project that doesn’t support layered materials, then yeah, baking the tattoo into the diffuse texture would be the way to go. It’s more effort upfront but ensures compatibility.
Personally, I like the non-destructive workflow with layered shaders—it keeps things flexible if I want to experiment or adjust the tattoo’s placement without committing to a baked texture too early.
What software are you using? If you let us know, I (or others here) can try to share a more specific step-by-step for your setup.