This is an Asset for the Unity Game Engine that allows you to add an Outline/Silhouette to any GameObject that includes a MeshRenderer or SkinnedMeshRenderer in its hierarchy, it also allows you to combine multiple meshes into one.
You can find a detailed Guide on how to install and use this Asset in the ReadMe.txt
https://github.com/TheBusyBiscuit/Unity-DynamicOutline-MeshCombining/releases