To set up a PBR material, create a new material, and choose the
Principled BSDF as a shader. Add an Image Texture Node by pressing
the SHIFT+A key in the Shader Editor. You can also drag and drop the
image file from your file manager to the Shader Editor.
Dragging image files to the Shader Editor makes Blender automatically
create an Image Texture Node with that image as the source.
For the remaining Image Texture Nodes, you can select the first Texture
Node and press SHIFT+D twice. It creates two copies of the Image
Texture Node. Or drag and drop the remaining image textures to the
Shader Editor (Figure 5.17).
Figure 5.17 - Image Textures
For this example, we are using a PBR material with a Normal map. The
Normal and Roughness maps don't affect colors, and for that reason,
you should change the color space settings to "Non-Color" (Figure 5.18).