CGAL users discussion list

[Wonwoo Lee <>]

Hi, developers.

Using polyhedron and Nef_3 for visual hull reconstruction is not a  
good idea because it takes too much time.
According to my experience, it takes almost 1 hour with 16 silhouettes.
If the shape of the silhouettes becomes more complex, it takes more  
time.

In my opinion, the boolean operations among complex viewing volumes  
is one of problems and another is converting polyhedron to nef_3.
( Currently, my code creates viewing volumes of the silhouettes using  
Polyhedron_3 and converts them to the Nef_3 for boolean operation.)

So, I'd like to accelerate the process.
I think if we do the boolean operations among volumes with multi- 
threads, we can do it faster.
My question is that whether there are libraries, such as OpenMP, that  
is compatible with CGAL.

Or, is there any other way to speed up the two process I mentioned  
above ?

Regards.
Wonwoo.