1 files changed, 19 insertions, 0 deletions
diff --git a/source/blender/blenkernel/BKE_paint.h b/source/blender/blenkernel/BKE_paint.h
index 21195566179..c36e9f6961f 100644
--- a/source/blender/blenkernel/BKE_paint.h
+++ b/source/blender/blenkernel/BKE_paint.h
@@ -289,6 +289,22 @@ typedef struct SculptLayerPersistentBase {
   float disp;
 } SculptLayerPersistentBase;
 
+typedef struct SculptVertexInfo {
+  /* Idexed by vertex, stores and ID of its topologycally connected component. */
+  int *connected_component;
+} SculptVertexInfo;
+
+typedef struct SculptFakeNeighbors {
+  bool use_fake_neighbors;
+
+  /* Max distance used to calculate neighborhood information. */
+  float current_max_distance;
+
+  /* Idexed by vertex, stores the vertex index of its fake neighbor if available. */
+  int *fake_neighbor_index;
+
+} SculptFakeNeighbors;
+
 /* Session data (mode-specific) */
 
 typedef struct SculptSession {
@@ -380,6 +396,9 @@ typedef struct SculptSession {
   /* This is freed with the PBVH, so it is always in sync with the mesh. */
   SculptLayerPersistentBase *layer_base;
 
+  SculptVertexInfo vertex_info;
+  SculptFakeNeighbors fake_neighbors;
+
   /* Transform operator */
   float pivot_pos[3];
   float pivot_rot[4];