Add V-HACD compression to Ammo js

Feature requests
1

@Cedric @MackeyK24 @Deltakosh Can we add the various commits to the one of the Babylon-Ammo.js builds necessary to enable V-HACD mesh compression? This is pretty amazing:

https://enable3d.io/examples/compare-physics-body-shapes.html

2

Adding @Cedric and @RaananW who are taking great care of this area :slight_smile:

1 Like
3

I think I can update to the master upstream and that should pick up the latest ammo.js

Let me look into that

1 Like
4

Are these commits in the kripken repo ?

5

Are these commits in the kripken repo ?

No they are not, it is forked, but kripken did comment/review them.

6

@RaananW are you one of the physics guys? For the longest time I thought it was just @Cedric so I kept tagging only him

1 Like
7

You can tag both of us.
For now, I focus on Plugin V2 with improved performances with instances and more things to come.
V-HACD is interesting but unless it gets merged in main ammojs repo, it will be some time before we see it happen in bjs.

3 Likes
8

I have added an example to use V-HACD using an external library. It is provided as an WASM file and runs in a WebWorker.

In the example I spin up two WebWorker instances to create the two V-HACD shapes in parallel. After the shapes are computed, I terminate both WebWorker instances.

Have a look: https://enable3d.io/examples/threejs/vhacd-shape-webworker.html

3 Likes
9

That is so awesome.

Very nice display of the differences by showing the vertex edges.

Have you used this setup in any serious collision test scenarios? I would love to see what you’ve done so far.

Btw, have you tried using the havok physics engine yet?