The Retro Outline effect uses the Inverted Hull method to render quick and cheap outlines on an object, with support for vertex snapping.
To use this effect, you’ll need to attach a secondary material to your object.

Retro Properties
- Base Color - Main albedo color of the object, i.e. the color when the object is fully lit.
- Thickness - How far the outline expands from the object’s surface, in world space units.
- Snaps Per Meter - How many points the vertices of the mesh will snap to within one Unity unit (a meter). Higher values result in a smoother appearance.