Simple import script for importing meshes with custom collision as RigidBody3D with CollisionShape3D

[nutlike4693]

GitHub - DustStock/RigidBody3D-with-Custom-Collision-Import-Script-for-Godot-4

The built in import functions (with import hints) do not support creating RigidBody3Ds with custom collision (only StaticBody3D).

I also happened to want to figure out how to make and use import scripts.

This was a simple enough task. I am sharing my results here.

[nikefootbag]

This is interesting.

I’m working on a plugin in a similar vein, except importing meshes and setting a primitive CollisionShape (cube, sphere etc) sized and centered per the mesh, or multiple mesh’s AABB.

[nutlike4693]

There is a blender script I updated as a sister to this one to decompose meshes into convex hulls.

Blender 4 add on for creating custom collision meshes and GDScript to import them

The blender script is forked from another project to update to Blender 4 and add GLTF export. It provides to separate algorithms for decomposing a mesh into convex meshes. V-HCD and CoACD (you need to download these executables from their respective repos). CoACD does a much better job with anything that has a hole or concave area that is important to preserve. The GDScript is made for importing the resulting GLB file. It imports the mesh, creates a rigidbody3d for it and creates and attache…

I am currently updating it and adding some functionality.

With it you can use V-HACD (which godot uses) or CoACD (which I prefer). But you can tweak their settings to get better results.

In Godot, I found that writing an import script was easier than making import plugin (although I will try that again sometime).

Anyway, please feel free to make the script your own if there is anything useful to you in it.

[nikefootbag]

Thanks i’ll check it out as I use blender also.