Getting Prepared
This will only work in versions of Blender from 2.8+. The add-on we're going to use, Abnormal, doesn't support 2.79. If you're still hanging on to Blender 2.79, give Blender 3.0 a try! It's greatly improved and the learning curve shouldn't be any steeper than before.
This is the official normal-editing Blender add-on of the Blender NPR (non-photorealistic rendering) community. It has a slightly unusual interface, but we'll only need a few buttons. Download a .zip file from the releases page.
github.com/bnpr/Abnormal/releases
Click the Install button, then navigate to the .zip file you downloaded and select it. Install the add-on and it should appear automatically. Check the box for Abnormal.
