[pstricks] Solides3d: strange result to fusion

[Jean-Paul Vignault]

 > Hello,

Hello,

 > below you see an example handling the fusion of two hollow cones.
 > One cone is completely located within the other cone. The fused
 > object looks a little bit strange in case of having
 > ngrid = a b with a not equal 1. The result is the same for
 > a) conecreux without using hollow
 > b) cone with using hollow

I have no time to make tests, but I think it's not a bug : this is the
default of painter's algorithm : faces are sorted from farest to
nearest before draw. The distance is from face's center to point of
view.

Best regards

Jean-Paul