bulletphysics / bullet3

Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.
http://bulletphysics.org
Other
12.21k stars 2.85k forks source link

Simulation of very small objects #4542

Open animaone opened 8 months ago

animaone commented 8 months ago

I would like to use bullet to simulate very small objects (in the order of centimeters of size) Since small objects have different inertia, I suppose I can't scale them, unless I want inaccurate results. Would bullet be able to do that(considering I change the correct parameters), or should I go to another simulation package such as mbdyn? Which parameters should I change?

animaone commented 1 month ago

An addendum: The correct name for what I was searching for is physics for engineering, or mechanical solver. I suspect that the only thing that differs bullet from the other solvers is the accuracy and being able to assign materials like iron with an already defined density. Bullet may be able to do this but have to be "tuned" using multiple tests of comparison with other engineering software. It is all about accuracy(measured similarity to a predefined world) and tuning I guess.