need help with colisions

[ghostrider6969698]

ive got a car and ive tried everything from double collision the chassis to getting all collisions off a gta base car and nothing seems to work as ive got this happening to my car in video but also when i open dors it works fine with impacts and shooting doors just when closed doesnt except the front left door works open and closed and cant seem to figure out why that does but rest doesnt and why in some places shoots through car and other places doesn't

video : https://youtu.be/RvKmMw2ZYjc

[Oleg]

does your chassis collision have "VOID" polygons at doors area? the "PHYSICS_VOID" type on polygons is used to let the game perform hit-test on other objects even if it detects hit on current collision volume's polygon.

[ghostrider6969698]

no whole chassis is set to default with shoot through and see through flags

[ghostrider6969698]

but when you say this how would i check this

[Oleg]

That's what I'm talking about: chassis' collision should have "void" physics ID on polygons where doors and windows are:

[ghostrider6969698]

ok did that but still not working is it because i have double collision it as evetime i convert the chassis has to be double collision i dont know why though

[ghostrider6969698]

tried everything like setting the void stuff and putting rest as default and then trying maybe metal on all rest of car except the void parts and still nothing just the first left door is only one to work when closed is all like dont get it and also on newer version fo zmodeler there isnt any flag and options part in there is there so im on 1231 build cause of that could that be why

[Oleg]

no, this is not related. There is no longer Node or Flags in user-defined options, this have been moved to node's GTA5 options window. You toggle axes constrains boxes (like Position X, Position Y, Position Z) and these options automatically create proper node type on export.

I suggest to take collisions from vanilla vehicle (even if they don't match in shape) and put them onto chassis, doors and windows. Then start converting them to double-collisions one by one (from chassis and down to hierarchy). You might get a working setup at some point. From this point, refine collision volumes shape to match your geometry and keep testing.

P.S. the child collision bug can cause problems on parent collision. So your door collision might be OK, but the bugged door's window collision can cause problems.