About NavMesh agents
The NavMesh agent is a GameObject that is represented by an upright cylinder whose size is specified by the Radius and Height properties. The cylinder moves with the GameObject, but remains upright even if the GameObject rotates. The shape of the cylinder is used to detect and respond to collisions with other agents and obstacles. When the anchor point of the GameObject is not at the base of the cylinder, use the Base Offset property to specify the height difference.

The height and radius of the cylinder are specified in the Navigation window and the NavMesh Agent component properties of the individual agents.
- Navigation window settings describe how all the NavMesh Agents collide and avoid static world geometry. To keep memory on budget and CPU load at a reasonable level, you can only specify one size in the bake settings.
- NavMesh Agent component properties values describe how the agent collides with moving obstacles and other agents.
Typically you set the size of the agent with the same values in both places. However, you might, give a heavy soldier a larger radius, so that other agents leave more space around your soldier. Otherwise, your soldier avoids the environment in the same manner as the other agents.
Additional resources
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.