Speedup for usual non-manifold exact boolean case.

The commit rB6f63417b500d that made exact boolean work on meshes
with holes (like Suzanne) unfortunately dramatically slowed things
down on other non-manifold meshes that don't have holes and didn't
need the per-triangle insideness test.
This adds a hole_tolerant parameter, false by default, that the user
can enable to get good results on non-manifold meshes with holes.
Using false for this parameter speeds up the time from 90 seconds
to 10 seconds on an example with 1.2M triangles.

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/bmesh/tools/bmesh_boolean.h b/source/blender/bmesh/tools/bmesh_boolean.h
index 2cc32e143fc..ed77242e14c 100644
--- a/source/blender/bmesh/tools/bmesh_boolean.h
+++ b/source/blender/bmesh/tools/bmesh_boolean.h
@@ -32,6 +32,7 @@ bool BM_mesh_boolean(BMesh *bm,
                      const int nshapes,
                      const bool use_self,
                      const bool keep_hidden,
+                     const bool hole_tolerant,
                      const int boolean_mode);
 
 bool BM_mesh_boolean_knife(BMesh *bm,
@@ -42,6 +43,7 @@ bool BM_mesh_boolean_knife(BMesh *bm,
                            const int nshapes,
                            const bool use_self,
                            const bool use_separate_all,
+                           const bool hole_tolerant,
                            const bool keep_hidden);
 
 #ifdef __cplusplus