Fix T65986: Inaccurate center of mass, calculating mesh center

Use a median center of polygons as an initial value for volume center
calculation since the volume accumulation quickly generates very large
numbers that become inaccurate if the geometry is too far
from it's current center.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_mesh.h b/source/blender/blenkernel/BKE_mesh.h
index 46c6f68384e..7d989bfcf69 100644
--- a/source/blender/blenkernel/BKE_mesh.h
+++ b/source/blender/blenkernel/BKE_mesh.h
@@ -484,6 +484,7 @@ void BKE_mesh_poly_edgebitmap_insert(unsigned int *edge_bitmap,
                                      const struct MLoop *mloop);
 
 bool BKE_mesh_center_median(const struct Mesh *me, float r_cent[3]);
+bool BKE_mesh_center_median_from_polys(const struct Mesh *me, float r_cent[3]);
 bool BKE_mesh_center_bounds(const struct Mesh *me, float r_cent[3]);
 bool BKE_mesh_center_of_surface(const struct Mesh *me, float r_cent[3]);
 bool BKE_mesh_center_of_volume(const struct Mesh *me, float r_cent[3]);