Bullets physics questions, Area or KinematicBody, tunneling

[dmaz]

I think I'll end up replacing a lot of my particle systems with this... one bullet question though: this seems to all be area2d and not kinematic right?

[samdze]

Exactly. more precisely, each bullet is a shape of a shared area.
More shared areas are created depending on how you configure your collision layer/mask on your BulletKits.

[dmaz]

Ok good to know. so then though, fast bullets could be susceptible to tunneling? any ideas there or would we just use a different solution when we need to?

[samdze]

Yes, they are susceptible to tunneling.
A way to fix this would be to add a feature to enable shape casting with motion on BulletKits you wish to turn tunneling-safe.
But I expect that it will decrease performance a lot.