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Select scene geometry that should affect the navigation – walkable surfaces and obstacles.
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Check Navigation Static on to include selected objects in the NavMesh baking process.
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Adjust the bake settings to match your agent size.
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Step Height defines how high obstructions are that the agent can step on.
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Click bake to build the NavMesh.
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Create a cylinder: GameObject > 3D Object > Cylinder.
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The default cylinder dimensions (height 2 and radius 0.5) are good for a humanoid shaped agent, so we will leave them as they are.
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Add a NavMesh Agent component: Component > Navigation > NavMesh Agent.
效果: