physical objects in slow motion

[jbosch]

Hi there,

My physical objects seem to move in slow motion. I'ts because I'm doing something wrong, I'm sure about that. I tried to change the mass of the objects, but I think this is not the reason. Any idea?

http://www.youtube.com/watch?v=9OLHxcMFoiI

Thanks!

JB

[Norbo]

If the settings are still the same as the bowling demo provided earlier, the gravity was regular earth gravity assuming that units are meters (-9.81 meter/second/second).

Using that scale (unit == meter), the bowling ball is 10 meters across, or about 30 feet. The bowling pin is 50 meters tall, or about 150 feet (about half an american football field). Basically, they are the size of buildings. In real life, seeing a house fly through the air may appear to be in 'slow motion' because of the scale.

To address the issue, you can either increase gravity or make the involved entities dimensions match the gravity/size expectations. A regulation bowling pin, for example, is ~0.4 meters tall. When determining the scale of shapes, it's important to take into account floating point precision as well- very small or very large numbers can cause instability, see here for more information: http://www.bepu-games.com/forums/viewto ... ?f=4&t=853

The reason why changing mass does not affect the speed is that the acceleration of gravity is the same regardless of mass (think of a falling feather vs falling lead in a vacuum).

[jbosch]

Many thanks Norbo!! I was using the same scales, so yes, I'm trying to move huge masses and volumes jejeje, I'll reduce the scales.