1 files changed, 15 insertions, 5 deletions
diff --git a/source/blender/blenkernel/BKE_editmesh_cache.h b/source/blender/blenkernel/BKE_editmesh_cache.h
index 2640356ccf6..454a07be4e3 100644
--- a/source/blender/blenkernel/BKE_editmesh_cache.h
+++ b/source/blender/blenkernel/BKE_editmesh_cache.h
@@ -11,15 +11,25 @@ extern "C" {
 #endif
 
 struct BMEditMesh;
-struct EditMeshData;
 
-void BKE_editmesh_cache_ensure_poly_normals(struct BMEditMesh *em, struct EditMeshData *emd);
-void BKE_editmesh_cache_ensure_vert_normals(struct BMEditMesh *em, struct EditMeshData *emd);
+typedef struct EditMeshData {
+  /** when set, \a vertexNos, polyNos are lazy initialized */
+  const float (*vertexCos)[3];
 
-void BKE_editmesh_cache_ensure_poly_centers(struct BMEditMesh *em, struct EditMeshData *emd);
+  /** lazy initialize (when \a vertexCos is set) */
+  float const (*vertexNos)[3];
+  float const (*polyNos)[3];
+  /** also lazy init but don't depend on \a vertexCos */
+  const float (*polyCos)[3];
+} EditMeshData;
+
+void BKE_editmesh_cache_ensure_poly_normals(struct BMEditMesh *em, EditMeshData *emd);
+void BKE_editmesh_cache_ensure_vert_normals(struct BMEditMesh *em, EditMeshData *emd);
+
+void BKE_editmesh_cache_ensure_poly_centers(struct BMEditMesh *em, EditMeshData *emd);
 
 bool BKE_editmesh_cache_calc_minmax(struct BMEditMesh *em,
-                                    struct EditMeshData *emd,
+                                    EditMeshData *emd,
                                     float min[3],
                                     float max[3]);