Automatically adding collision to models in library | Godot Café | Page 1

swift widget Feb 21, 2026, 6:42 PM

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Hello!
Bit new to Godot and switched over from Unity. While I'm comfortable with coding I am not quite used to how godot handles their scripts.
I have a simple scene here with tiles in a gridmap, the models are of the GLB file type.
What I wish to do is that in my node3D library of all the models, I wish to add collision to all of them using code so I don't need to manually add this to each of them since I plan to make this very convenient for mods in the future.

I tried running a script inside the library main node, but it doesn't start up in the main scene since the library main node is not present there, so I added a GameManager scripts that runs the library nodes ready function in the main scene.
But what I am suspecting is that the library is not at all loaded with all their children when this happens, is there a way to preemptively load this library and all it's children or am I going about this the wrong way?

It's all static objects right now and none of them will have animation.

fallow locust Feb 21, 2026, 6:47 PM

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why not add collision shape to each asset piece.
since all of them are individual scene, you can just create collision shape for them in their individual scene.

swift widget Feb 21, 2026, 6:52 PM

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They are not all in an individual scene, they are all in one library scene.
currently I only have 6 tiles for testing, but by the end of this project we will have over 100 tiles and maybe about 200 objects that will get placed by the gridmap, so I would rather not have moders and myself do that manually if I could avoid it.

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I might split it up into category libraries later and have each category library contain some models, but right now, it's just one scene.

fallow locust Feb 21, 2026, 7:01 PM

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how are you creation those tiles? blender?

swift widget Feb 21, 2026, 7:01 PM

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ye

fallow locust Feb 21, 2026, 7:02 PM

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in the mesh of every tile, just add '-col' at the end, it should automatically create a collision shape while importing the glb file

swift widget Feb 21, 2026, 7:02 PM

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oh, inside blender?

fallow locust Feb 21, 2026, 7:02 PM

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yes

swift widget Feb 21, 2026, 7:03 PM

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you mean like at the name of each mesh? "corner_Plane_002-col" for example

fallow locust Feb 21, 2026, 7:05 PM

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https://docs.godotengine.org/en/4.1/tutorials/assets_pipeline/importing_scenes.html#import-hints

Godot Engine documentation

Importing 3D scenes

Godot scene importer: When dealing with 3D assets, Godot has a flexible and configurable importer. Godot works with scenes. This means that the entire scene being worked on in your favorite 3D mode...

swift widget Feb 21, 2026, 7:05 PM

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testing this out

fallow locust Feb 21, 2026, 7:05 PM

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swift widget you mean like at the name of each mesh? "corner_Plane_002-col" for example

yes

swift widget Feb 21, 2026, 7:08 PM

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hm...I tried just double clicking and adding physics to the object, but this is not the same thing as the collider?

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this is within the model and then I reimported the model

fallow locust Feb 21, 2026, 7:11 PM

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you can also open the model as a scene

fallow locust Feb 21, 2026, 7:12 PM

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swift widget hm...I tried just double clicking and adding physics to the object, but this is ...

This will create every mesh as StaticBody3d, collison shapes in godot themselves don't do anything, they are child of eiher staticbody or rigidbody

fallow locust Feb 21, 2026, 7:13 PM

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swift widget this is within the model and then I reimported the model

collision should work now

#Automatically adding collision to models in library