diff options
Diffstat (limited to 'source/blender/blenlib/intern/mesh_intersect.cc')
| -rw-r--r-- | source/blender/blenlib/intern/mesh_intersect.cc | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/source/blender/blenlib/intern/mesh_intersect.cc b/source/blender/blenlib/intern/mesh_intersect.cc index 32f0216951a..a9c725d4adf 100644 --- a/source/blender/blenlib/intern/mesh_intersect.cc +++ b/source/blender/blenlib/intern/mesh_intersect.cc @@ -1998,6 +1998,10 @@ static Array<Face *> polyfill_triangulate_poly(Face *f, IMeshArena *arena) * If this happens, we use the polyfill triangulator instead. We don't * use the polyfill triangulator by default because it can create degenerate * triangles (which we can handle but they'll create non-manifold meshes). + * + * While it is tempting to handle quadrilaterals specially, since that + * is by far the usual case, we need to know if the quad is convex when + * projected before doing so, and that takes a fair amount of computation by itself. */ static Array<Face *> triangulate_poly(Face *f, IMeshArena *arena) { @@ -2099,20 +2103,6 @@ IMesh triangulate_polymesh(IMesh &imesh, IMeshArena *arena) if (flen == 3) { face_tris.append(f); } - else if (flen == 4) { - const Vert *v0 = (*f)[0]; - const Vert *v1 = (*f)[1]; - const Vert *v2 = (*f)[2]; - const Vert *v3 = (*f)[3]; - int eo_01 = f->edge_orig[0]; - int eo_12 = f->edge_orig[1]; - int eo_23 = f->edge_orig[2]; - int eo_30 = f->edge_orig[3]; - Face *f0 = arena->add_face({v0, v1, v2}, f->orig, {eo_01, eo_12, -1}, {false, false, false}); - Face *f1 = arena->add_face({v0, v2, v3}, f->orig, {-1, eo_23, eo_30}, {false, false, false}); - face_tris.append(f0); - face_tris.append(f1); - } else { Array<Face *> tris = triangulate_poly(f, arena); for (Face *tri : tris) { |