Why does adding a collider to a gameobject with AIPath stop it from finding a path?

Beginner Questions
1

I am trying to add a collider to a gameobject that is using AIPath to move towards a target on a GridGraph. The collider is for physics separate from the pathfinding.

When I add a collider of a certain size, the gameobject no longer moves because it does not find a path. When I leave the collider at the default 1x1x1, it works fine. However, when I increase the size, it does not work.

The object I am trying to add the collider to is a gameobject with many children gameobjects with meshes.

What might be the problem here?

Thanks

2

Hi

Make sure that collider is excluded from the height testing and collision testing masks in the grid graph settings. Otherwise the NPC will be treated as an obstacle.

3

Thanks. I just edited my question after further testing, but that sounds like it is it.

4

I added the NPC layer to the collision mask, and set the height map to everything except the NPC layer. The path is now working.

However, when I render the graph as a Gizmo, path edges dont show up. Instead there are the red cubes. Why doesn’t the graph create normal nodes?

5

Red cubes means that those nodes are unwalkable. There is some obstacle detected near those nodes or the graph could not find any ground.

See http://arongranberg.com/astar/docs/getstarted.php