[ODE] Gravity

Nate W coding at natew.com
Tue May 13 13:05:02 2003


On Tue, 13 May 2003, Charles Ingalls wrote:

> If I set dWorldSetGravity (dWorldID, 0, 0, -9.8);
> with a timestep of 0.01,
> the objects are falling very slowly...(like on the moon).

How high are the objects when you "drop" them?

I'd wager that you're dropping them from way up high, and it takes a while
for them to fall.

> Could someone explain me why ???
> This -9.8 means 9.8 m/s/s isn't it ?

Yes, but it also means that your length dimensions must be in meters, and
if you drop something from, say, 100 meters, it will take a while to fall.

-- 

Nate Waddoups
Redmond WA USA
http://www.natew.com