Godot Version
v4.5.1.stable.nixpkgs [f62fdbde1]
Question
Hi, I’m fairly new to Godot, so this might be something obvious I’m missing.
I’m generating world chunks at runtime (similar to Minecraft).
Each chunk contains:
-
a floor
-
several procedurally generated obstacles (walls / pillars)
All objects of a chunk are added to a unique group, and when the chunk loads I create a NavigationRegion3D and bake a NavigationMesh from that group.
The problem is that some obstacles correctly cut holes into the navmesh while others are ignored, even though they use the same scene and colliders.
Note: I tried using one nav-region for all chunks, and it worked but recalculating every new chunk although it already existed whilst moving generated stutters
Here is the relevant code and pictures:
func load():
var floor = floor_scene.instantiate()
floor.add_to_group(nav_group_name)
add_child(floor)
for child in children:
child.add_to_group(nav_group_name)
add_child(child)
await get_tree().process_frame
generate_navigation_region()
func generate_navigation_region():
var nav_region := NavigationRegion3D.new()
add_child(nav_region)
await get_tree().physics_frame
var nav_mesh := NavigationMesh.new()
nav_mesh.agent_height = 2.0
nav_mesh.agent_radius = 0.4
nav_mesh.geometry_parsed_geometry_type = NavigationMesh.PARSED_GEOMETRY_STATIC_COLLIDERS
nav_mesh.geometry_source_geometry_mode = NavigationMesh.SOURCE_GEOMETRY_GROUPS_WITH_CHILDREN
nav_mesh.geometry_source_group_name = nav_group_name
nav_region.navigation_mesh = nav_mesh
nav_region.bake_navigation_mesh(true)
await nav_region.bake_finished
Obstacle scene structure:
Node3D
└─ StaticBody3D
├─ MeshInstance3D
└─ CollisionShape3D
Thanks for your help, Tom.