diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Slic3r/Print/Object.pm | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/Slic3r/Print/Object.pm b/lib/Slic3r/Print/Object.pm index 6ab3b40de..9c639bce7 100644 --- a/lib/Slic3r/Print/Object.pm +++ b/lib/Slic3r/Print/Object.pm @@ -603,7 +603,14 @@ sub discover_horizontal_shells { # find intersection between neighbor and current layer's surfaces # intersections have contours and holes - my $new_internal_solid = intersection_ex( + # we update $solid so that we limit the next neighbor layer to the areas that were + # found on this one - in other words, solid shells on one layer (for a given external surface) + # are always a subset of the shells found on the previous shell layer + # this approach allows for DWIM in hollow sloping vases, where we want bottom + # shells to be generated in the base but not in the walls (where there are many + # narrow bottom surfaces): reassigning $solid will consider the 'shadow' of the + # upper perimeter as an obstacle and shell will not be propagated to more upper layers + my $new_internal_solid = $solid = intersection_ex( [ map @$_, @$solid ], [ map $_->p, grep { $_->surface_type == S_TYPE_INTERNAL || $_->surface_type == S_TYPE_INTERNALSOLID } @neighbor_fill_surfaces ], undef, 1, |