[Solved] Convex hull generation broken (UE 5.4+)

[Andy_rst]

Hi,

I’ve been trying to generate a convex hull collision for the Physics Asset of my skeletal mesh, but it seems the convex generator is broken — it doesn’t generate any convex shapes for the bones. I’ve attached the FBX, and maybe someone from Epic can explain what the issue might be?

SK_TestConvex.FBX (398.5 KB)

[Andy_rst]

The weights are correctly assigned to each bone, but generator (in Physic Asset) won’t generate Single Convex hull:

[Andy_rst]

Solved. Improper vertices coordinates, seems like issue due export from Blender:

Convex generator exit on checking by bound box size:

[Andy_rst]

Here is solution:

Tutorial: skeletal mesh blender to unreal engine(scale and bone rotation)

1)Before skin weight paint but after parenting mesh to armature you need to scale both armature and the model by 100 → apply scale and then scale it down 0.01 without applying transform.(This is needed for the proper bone scale in unreal engine) [scale_settings] 2)If your model is facing -y axis(it’s looking at you when you press 1 in blender) [fbx_importsettings] I’ve tried different options and found that these work well. In case that image didn’t upload: in fbx export settings: in ‘tra…