how to apply more than one material to a single object (using a color map)?

marcm3d

Hello everyone. I have an object that contains plastic parts, metallized and with tissues. I have texture maps extracted from the Substance Painter, but the metalized part appears completely black in the viewport and render. How do I adjust this? Or how can I apply the Iray shaders using the color map? Thank you all.

L'Adair

One solution is to create a mask, a black map with white where the texture is metal.

You can then use that map in the Metalicity setting, with the slider set to 1. Where the map is white, the material will be metallic; Where it is black, it will remain as it is now.