Create thick 3D object from sprite?

Unity Engine
1

Hello, moving to Unity from UE4, and I can’t seem to get navmesh working on a platforming game.

For example, UE4 sprites can generate thickness like so:

However in Unity, I can create the polygon collider, but I can’t figure out how to make it thicker

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The collider is too thin and thus the Navmesh will not generate on it.

Is there some other workaround to generating a navmesh on this sprite, so player/enemies may run around and jump onto the ledges?

2

Hello again Juice-Tin, you’re doing some neat stuff there.

Do you need a navmesh?? It’s sorta just linear in the Z == 0 plane, right? Could you just sense it with raycasts in 2D?

If you want an extruder, I have two unrelated things you could look at in my MakeGeo project:

  • testmakeextrusion.unity

or

  • makethicksprites.unity

Might give you some ideas.

MakeGeo is presently hosted at these locations:

https://bitbucket.org/kurtdekker/makegeo

3

Heya Kurt lol, thanks!

Yeah here’s what I’m trying to replicate:

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Basically building “3D” navmeshes but on a 2D plane, so the AI can fully utilize navmeshes (jumping around, etc)

I’ll have a look at the MakeGeo project, thanks!!

4

Not sure if it’ll help but there’s this which takes some features I added to 2D physics during a Hackweek a few years ago (the ability to ask for a Mesh from any 2D Collider) and uses it for NavMesh.

Github: NavMeshPlus.
Forum: [Activity]( 2D NavMesh PathFinding...... page-7#post-7522568)
Physics API: Collider2D.CreateMesh and Collider2D.GetShapeHash
Hackweek Project:
https://www.youtube.com/watch?v=Jcl8oZT5JLE

1 Like
5

Thanks, that looks great, but would it generate on the top of sprites for platforming, or does it only generate in empty space and use sprites as occluders?

6

I’m not staying up to date with its features TBH. Best to go ask on that thread.