Sculpt: Transform tool

The sculpt mode transform tool applies the sculpt pivot transformation to all vertices, taking XYZ symmetry into account.
This commit also includes an operator to set the pivot point initial position.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D5717

1 files changed, 9 insertions, 2 deletions

diff --git a/source/blender/blenkernel/BKE_paint.h b/source/blender/blenkernel/BKE_paint.h
index ed4bcee3541..5ce16e8b906 100644
--- a/source/blender/blenkernel/BKE_paint.h
+++ b/source/blender/blenkernel/BKE_paint.h
@@ -267,12 +267,19 @@ typedef struct SculptSession {
   float cursor_view_normal[3];
   struct RegionView3D *rv3d;
 
-  float pivot_pos[3];
-
   /* Dynamic mesh preview */
   int *preview_vert_index_list;
   int preview_vert_index_count;
 
+  /* Transform operator */
+  float pivot_pos[3];
+  float pivot_rot[4];
+  float pivot_scale[3];
+
+  float init_pivot_pos[3];
+  float init_pivot_rot[4];
+  float init_pivot_scale[3];
+
   union {
     struct {
       struct SculptVertexPaintGeomMap gmap;