Collider made of geometry does not match mesh data(position, scale, ..etc) - three.js

Question

I wanted to load the spatial model using the gltfloader, and then create a collision with geometry data.
By the way, I’m trying to get help with a different result than I expected.
problem image
here is sample image
You can see that the collider is larger than the visible Mesh data.
Most of the spatial data has the above situation.
The example code used is as follows. (tsx on react)
function Space(props) {
const url = props.data?.spaceFileName ? `https://space-test.vrin.co.kr/files/${props.data.spaceFileName}` : null;
const model = useGLTF(url);
const clone = model.scene;
const getCollide = (child) => {
console.log(child);
const geometry = new Geometry().fromBufferGeometry(child.geometry);
const vertices = geometry.vertices.map((v) => new THREE.Vector3().copy(v));
const faces = geometry.faces.map((f) => [f.a, f.b, f.c]);
const normals = geometry.faces.map((f) => new THREE.Vector3().copy(f.normal));
return <Object key={child.uuid} clone={clone} args={[vertices, faces, normals]} model={model} />
};
const traverseObject = (child) => child.children.map((c) => {
if (c.type === 'Object3D' || c.type === 'Group') {
return traverseObject(c);
} if (c.type === 'Mesh') {
return getCollide(c);
}
});
const objects = traverseObject(model.scene)
return <group dispose={null}>{objects}</group>;
}
Some spatial data generate collisions properly, but some spatial data do not generate collisions properly.
make sample image
here is sample what i made on blender
As a result of watching the Blender program, it is expected that it does not seem to be able to properly load the Geometry layer at the top.
blender2
If you look at the collation in the image above, there is a group called Sketchfeb at the top.
If i erase that group layer,
blender2
It can be seen that it is very similar to the shape of the collision body shown in the first picture.
I don’t know if I wrote the recursive function incorrectly or if there is an internal problem with the module.
Does anyone know the solution?
I don’t know if I wrote the recursive function incorrectly or if there is an internal problem with the module.
Does anyone know the solution?