How to have seperate recast graph?

General Recast graph
#1

I have a big scene, and different part have different enemy, I want to seperate them so they only stay in their area.
But I can not find a way to tag my graph!
I have try the tagmask, I tag gave two area different tag, created two graph with different tag mask, and hit scan. It always generate two identical graphs to me. This isn’t helpful, I don’t even know what’s the use of the tagmask, I cannot even use graphmask to startpath for different enemy, because both of the graph are the same.
It should be a simply thing to do, even unity navigation have different area you can choose to bake into.

#2

Hi

You can use tags, but the ‘tagmask’ refers to Unity tags, more specifically you can specify which objects should be included when scanning the graph.
You will have to use a graph update (e.g the GraphUpdateScene component) to update the graph where you want to set a tag. See http://arongranberg.com/astar/docs/graph-updates.php

#3

Thanks for your reply, but I can not find where to specify which objects should be included.
When I hit scan, it just scan two graph automatically, also I did set it to unity tag.

#4

So I set the gameobject I wanted to scan to specific tag, and used the tag mask in graph, but it seems not ignoring anything else.

#5

Also I can’t quite know the order that you specify a path first and then startpath to cull the graphmask. Isn’t that path already have a start and end? And then will the path recalculate itself if they land on different graph layer?

#8

No！！！！！！
Acuaally！！！！！！
You know what！！！！！
You can either have Layer Mask or Tag Mask, you can not have both together.
So if I choose to scan Ground layer and Grass tag
Anything in Ground layer or Grass tag will be scanned.
What I thought should be happend is anything with Ground layer and Grass tag will be scanned.
But that’s what I hope it could do.

#9

Hi

Yes, as it says in the interface “Objects contained in any of these masks will be rasterized”. There are probably cases where you want the other behavior, but I thought the current behavior would be more useful. If you explicitly want to include a particular object in the rasterization process you can add a RecastMeshObj component to it.

There is currently no way to specify that a particular object should apply a particular pathfinding tag to the graph when it is rasterized. It is a feature I have been wanting to add however, I just haven’t had the time to do it. You can use a GraphUpdateScene object to apply a pathfinding tag to a group of nodes.