yade-users team mailing list archive

[Václav Šmilauer <eudoxos@xxxxxxxx>]

Anton Gladky píše v St 24. 06. 2009 v 10:27 +0200:
> I would like to know what is the main difference between Box and Facet
> geometry? And what is better and more reliable? 
> What is better interaction model Box-Sphere or Facet-Sphere?
> I appreciate any comments.

Boxes suck, sphere-box interaction is modeled as contact with fictive
sphere. For anything that is beyond simple elasticity, use Facets. You
can also make arbitrary triangulated surfaces with facets (especially
with GTS which I am integrating right now), which is not possible with
boxes. 

OTOH, Facets have no mass, therefore cannot be dynamic (they can move,
but not as a result of impacts etc).

Vaclav