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  • Getting Started
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        • No Collision Physics
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Blender 2.79 Manual
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  • Navigation Mesh Physics
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Navigation Mesh Physics¶

Pathfinding in Blender is based on the concept of navigation meshes. With this you can create navigation mesh for your level geometry directly in Blender and use it in Blender Game Engine (BGE) to get your actors to find path to the target and move along it. It is useful for creating an artificial intelligence. Besides path following, there are also a few other steering behaviors which can be assigned to the actor: seek and flee.

Pathfinding with a navigation mesh is most effective for big static obstacles. To enable actors to avoid small dynamic objects during their movement local obstacle avoidance can be used. If the obstacle simulation is enabled the actor will try to choose direction which is free of collision with obstacles on each frame during execution of one of the steering behaviors.

Usage¶

To setup a navigation mesh access: Physics buttons and set the Physics Type to Navigation Mesh.

Now the following tools will be accessible.

NavMesh Copy Face Index
Copies the navigation polygon index from the active face to selected faces.
NavMesh New Face Index
Adds a new navigation polygon index to selected faces.
NavMesh Reset Index Values
Assigns a new index to every face.
NavMesh Clear Data
Removes the navigation data from the mesh.
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