Creating a Rapier collider from a mesh

[vernal flame]

Hello y'all,

I've been trying to make a collider from a mesh inside the following bevy bundle:

`
(
PbrBundle {
mesh: body_mesh,
material: materials.add(Color::rgb(0.8, 0.7, 0.6).into()),
transform: Transform::from_xyz(0.0, 20.0, 0.0),
..default()
},
//physics properties
RigidBody::Dynamic, // set this object to be a dynamic rigid body
Collider::from_bevy_mesh(body_mesh, ???),
Restitution::coefficient(0.0),

    )

`

but "from_bev_mesh" wants a reference to a reference to &ComputedColliderShape which is either a Trimesh or a ConvexDecomposition.

How would I make a trimesh/convexdecomposition from my mesh to fill the second field?

[novel galleon]

You probably just want Collider::from_bevy_mesh(mesh, &ComputedColliderShape::TriMesh).unwrap(). At least that's what I'm using in my game.

The ComputedColliderShape is just an enum that instructs from_bevy_mesh how to represent the geometry (as far as I know).

[vernal flame]

ah thats the second part. I just realized though that the "body_mesh" I was refering to was a Handle<Mesh> and not a <Mesh> it self. How do I get the Mesh out of the Handle<>?

[wooden prairie]

It's much more convenient to add the AsyncCollider component instead which will handle that for you by grabbing the mesh used in the PbrBundle

[vernal flame]

how do I figure out how to use that? I can't tell from the wiki. https://docs.rs/bevy_rapier3d/latest/bevy_rapier3d/geometry/struct.AsyncCollider.html

[wooden prairie]

Add AsyncCollider(ComputedColliderShape::TriMesh) as a component

[vernal flame]

That seemed to work!

[vernal flame]

however, I made a plugin to spawn rectangular prisms with the AsyncCollider ontop of each-other and they seem to sometimes phase through each-other? Usually they collide, but sometimes the falling rectangular prism phases through the still prisms?