PDA

View Full Version : World Gravity



rlmergeuser
03-07-2013, 12:07 AM
Does anyone know the exact gravity (number) the world pulls down on the bike? It would really help to know for the track I am building!

rlmergeuser
03-07-2013, 02:49 PM
Does anyone know the exact gravity (number) the world pulls down on the bike? It would really help to know for the track I am building!

g = 9.81 m/sec˛
G = 6.67384 x 10^(-11)
m1 = Your mass + bike mass = ~300 KG
m2 = earth mass = 5.972 E 24
radius = 6,371,000 m

FG = G * m1 * m2 / (r)˛
= 2945.788987 N

EDIT: dont forget that its not just the world pulling on the bike but the bike pulling on the earth.

rlmergeuser
03-07-2013, 05:11 PM
Does anyone know the exact gravity (number) the world pulls down on the bike? It would really help to know for the track I am building!

g = 9.81 m/sec˛
G = 6.67384 x 10^(-11)
m1 = Your mass + bike mass = ~300 KG
m2 = earth mass = 5.972 E 24
radius = 6,371,000 m

FG = G * m1 * m2 / (r)˛
= 2945.788987 N

EDIT: dont forget that its not just the world pulling on the bike but the bike pulling on the earth.
While this is how things work in reality, it's way too specific for a game.
They are probably using a single constant force.

@Nickrev:
If you're playing around with forces, just use whatever value feels right.

rlmergeuser
03-07-2013, 11:07 PM
Well What I am trying to do is make it so that if I have a force push the bike against the wall and you stop moving it stays there rather then falling down the wall, unless someone knows how to toggle world gravity on the bike/rider when it is in other force fields

BlastergamerX
03-08-2013, 10:51 AM
hi,
why not try to use area affectors?

rlmergeuser
03-08-2013, 08:42 PM
Well What I am trying to do is make it so that if I have a force push the bike against the wall and you stop moving it stays there rather then falling down the wall, unless someone knows how to toggle world gravity on the bike/rider when it is in other force fields
Go into the advanced physics for both the bike and rider, and disable world gravity.
You can also bind this value to a variable data source, and set that variable to either 1 or 0 depending on when you want to turn it on or off.

rlmergeuser
07-27-2013, 03:29 AM
It around 940. In the past I have tried to make a track that turned upside down. hope that help