Inaccurate Walkability Areas in GraphUpdateScene when using Points

General Grid graph
#1

Hi,

I’m using a GridGraph on a basic Terrain object. I added a mountain mesh and I want to make it impassable. Unfortunately the mountain mesh has a bit of ground on it which I want to have be passable. If I allow the bounding cube to be used in GraphUpdateScene it will properly flag the corresponding nodes in GridGraph as impassable, but that includes the ground which I want passable. When I try defining points, even the same dimensions as the bounding box, I get many fewer impassable nodes. I’ve tried setting Min Bound Height to relatively high, but it’s still really inaccurate.

nodes.png2222×635 216 KB

Here I’m just trying to get the mountain, but it’s missing about half of them.

Any suggestions?

Edit: I know the Y values aren’t exactly at 0, but I get the same results when Y = 0 on all the points.

#2

Hi

I know there is a bug at the moment which can cause the GraphUpdateObject to update the wrong region if the object it is attached to (or a parent object) is scaled in some way. Is this the case for you?

#3

Ah, you’re absolutely right. If I remove the scaling and re-scan it fits perfectly. I’ll keep an eye out for future patch notes.

#4

The fix should be included in the 4.1.2 beta which was just released.

#5

Thanks! It works perfectly.

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