Edge detection?

Unity Engine
1

Hello everyone,

This model is composed of 7 box.
1633910--100792--$1.png

I want to change like this
1633910--100793--$0.png

I have no idea how to do it ?

2

Looks like you need the normals in order to figure out if the edge is angled enough to warrant an outline. So like the vertices in the middle on the top may have a normal that is flat enough to not show an outline, but the outside edges of the shape have normals at like 45 degrees so they get outlines. How you add the actual outlines I’m not sure.

3

Another simpler options is just to use textures… have versions of outlined box faces on the texture, some with outlines missing along given edges, and then use UV mapping on each cube to show the appropriate parts of the texture.

4

Thanks, imaginaryhuman.
My actual outlines just use texture.
I think use textures is better for me.