How to implement the mouse click highlight on StaticMeshActor of the scene when running?

[Mirro1871]

[eldany.uy]

You need two things:

One is evaluate the object under the cursor.
That is achieved with ‘Get Hit Results Under Cursor’

This example displays the name of the object under the pointer:

Second is create a special material that offsets the geometry.

The trick is duplicate the outlined static mesh and assign this outline material to it.

here is a simple blueprint example:

Ureal engine - Outlining objects with material

there is another technique using post processing volume but is a bit more complcated:

Unreal Engine City Building Game - Mouse Cursor, Click Object In-World and Highlight Material - EP 3