Physics questions

[Ywa]

Hi guys,

 

Few short questions related to physics:

- What is the default gravity (the one used in the Editor)? Is it 0 , -9.80665*2 , 0 ?

- Do I need to use UpdateAppTime when using the framework?

- What is a good weight for a vehicle? I see 1.0 used a lot (viperscout/monstertruck). while an oildrum has a mass of 6.0.

 

I already tried to play around with values myself. But somehow I can't get it to work.

 

Thanks.

 

- Ywa

[Canardia]

yes, no, 1

[Ywa]

Thanks. But how come a vehicle is 1.0 and an oildrum is 6.0? Doesn't make a lot sense to be honest (and yes, I understand values don't always need to be realistic).

[Canardia]

I use 1 for oildrum also. 6 is too heavy as the player can't kick and shoot it to move it.

[Ending Credits]

Isn't it all relative anyway, so setting the barrell mass to 1 or 100 is fine as long as the player mass and forces are scaled by the same amount.

 

I'd decide on a standard for masses and stick to that.

[Canardia]

If you use much bigger masses than 1, then you need also huge forces to move them the same way, and when you have to use a force like 50000, then the 32-bit float barrier starts to kick in also and you get errors.