1 files changed, 9 insertions, 0 deletions
diff --git a/source/blender/blenkernel/BKE_subdiv_mesh.h b/source/blender/blenkernel/BKE_subdiv_mesh.h
index ede7ae60dc9..b24db517143 100644
--- a/source/blender/blenkernel/BKE_subdiv_mesh.h
+++ b/source/blender/blenkernel/BKE_subdiv_mesh.h
@@ -14,6 +14,7 @@ extern "C" {
 #endif
 
 struct Mesh;
+struct MEdge;
 struct Subdiv;
 
 typedef struct SubdivToMeshSettings {
@@ -33,6 +34,14 @@ struct Mesh *BKE_subdiv_to_mesh(struct Subdiv *subdiv,
                                 const SubdivToMeshSettings *settings,
                                 const struct Mesh *coarse_mesh);
 
+/* Interpolate a position along the `coarse_edge` at the relative `u` coordinate. If `is_simple` is
+ * false, this will perform a B-Spline interpolation using the edge neighbors, otherwise a linear
+ * interpolation will be done base on the edge vertices. */
+void BKE_subdiv_mesh_interpolate_position_on_edge(const struct Mesh *coarse_mesh,
+                                                  const struct MEdge *coarse_edge,
+                                                  bool is_simple,
+                                                  float u,
+                                                  float pos_r[3]);
 #ifdef __cplusplus
 }
 #endif