Displace Modifier: add an option to displace along (averaged) custom normals, instead of vertex normals.

User suggestion/request from 'boby'.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_mesh.h b/source/blender/blenkernel/BKE_mesh.h
index 12330698131..41241988f2b 100644
--- a/source/blender/blenkernel/BKE_mesh.h
+++ b/source/blender/blenkernel/BKE_mesh.h
@@ -243,6 +243,10 @@ void BKE_mesh_normals_loop_custom_from_vertices_set(
         struct MPoly *mpolys, const float (*polynors)[3], const int numPolys,
         short (*r_clnors_data)[2]);
 
+void BKE_mesh_normals_loop_to_vertex(
+        const int numVerts, const struct MLoop *mloops, const int numLoops,
+        const float (*clnors)[3], float (*r_vert_clnors)[3]);
+
 void BKE_mesh_calc_poly_normal(
         const struct MPoly *mpoly, const struct MLoop *loopstart,
         const struct MVert *mvarray, float r_no[3]);