Is there any precise answer on this question? I found this piece of code which does generate collision, but I can’t make my character actually collide with the collision.
staticMesh->CreateBodySetup();
auto* BS = staticMesh->GetBodySetup();
// This part is to remove the generated simple collisions
BS->AggGeom.BoxElems.Empty();
BS->AggGeom.SphereElems.Empty();
BS->AggGeom.SphylElems.Empty();
BS->AggGeom.ConvexElems.Empty();
BS->CollisionTraceFlag = ECollisionTraceFlag::CTF_UseComplexAsSimple;
BS->InvalidatePhysicsData();
BS->CreatePhysicsMeshes();