Use the a face paint material to create a mask effect that shows the skin and features of the person using the effect - behind either a custom texture or a color.
For example, you can use this material to create a tattoo or makeup effect.
To create a face paint material:
First create a face mesh:
You'll see a face shape in the Viewport:
With the face mesh selected in the Scene panel, go over to the Inspector.
You can then either add a texture or color to the material by selecting an option from the dropdown next to Type:
Importing a texture
If you've selected Texture, choose the texture file you want to add from the menu or import a new one.
Once you've added the texture, you should see it on the face in the Viewport and Simulator:
Adding a color
If you've selected Color, simply add a color from the palette:
Scale the textures you've applied to your material.
Shift the origin of your textures.
Render Options and Advanced Render Options
Edit these properties to control how the material renders in the scene.
The object this material is applied to.