The Powder Toy

BLISax

why does pressure "leak" while in solid wall? by that i mean if you pause, make max vac and unpause the vacume drops? why is this. can i stop it from leaking? without pump?

MasterMind555

@BLISax (View Post)
It can leak if there's a crack:

W
C W

W = Wall
C = Crack

Ryan123220

Actually there most likely isnt a crack, It seems that the game dosnt let you keep a vacuum, it always trys to bring the pressure back to 0. It might be a flaw but ive tried many times to create an absolute vacuum and it never works.

Edited by Ryan123220, 2011-06-16 01:26:45

jacksonmj

It's a deliberate effect (but don't ask me why TPT air physics was made like this, because I don't know...)

Every frame, pressure goes closer to zero by 0.01% of its current magnitude.

BLISax

if i get the source to compile (cross your fingers) can i change this?

dnerd

@BLISax (View Post)
yep, look in Air.c try to interperate how the code works, and find the line that does what jacksonmj said.

jacksonmj

Hint: AIR_PLOSS

Although for some reason, with that removed, pressure still decreases very slowly. Possibly due to numerical inaccuracies somewhere.

TheTempest

I know this is a deliberate effect, however I think TPT would greatly benefit from this being changed so that you can maintain more pressure, even if pressure still decreases at a slower rate.

Simon

If you mean removing the limit of 256, it just causes the simulation to become buggy ans unusable. (The whole simulation gets wrecked)

TheTempest

Hmm... what about raising the limit rather than removing?

pressure leak