This results in approximately 4-5% speedup in collision detection for particle.xml.
PiperOrigin-RevId: 562526634
Change-Id: Ia6487b1908618064d858bac484fe6861ed37a402
mj_contactFilter removed geom pairs where their bodies share the same weldid, but this check can be applied at broadphase instead of at geom-geom level.
PiperOrigin-RevId: 507435848
Change-Id: Ia37c741071dc5e1c26686dd319f42c9bd334d305