Sculpt: Sculpt Filter Orientation Options

Previously, the XYZ deform axis of the Mesh Filter were limited to
object space (which is the default for sculpt mode). Now it is possible
to limit the XYZ displacement in Local, Global or View space.

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D8582

1 files changed, 18 insertions, 1 deletions

diff --git a/source/blender/editors/sculpt_paint/sculpt_intern.h b/source/blender/editors/sculpt_paint/sculpt_intern.h
index 14928ba933a..65006031bb3 100644
--- a/source/blender/editors/sculpt_paint/sculpt_intern.h
+++ b/source/blender/editors/sculpt_paint/sculpt_intern.h
@@ -337,7 +337,7 @@ float *SCULPT_boundary_automasking_init(Object *ob,
                                         float *automask_factor);
 
 /* Filters. */
-void SCULPT_filter_cache_init(Object *ob, Sculpt *sd, const int undo_type);
+void SCULPT_filter_cache_init(struct bContext *C, Object *ob, Sculpt *sd, const int undo_type);
 void SCULPT_filter_cache_free(SculptSession *ss);
 
 void SCULPT_mask_filter_smooth_apply(
@@ -944,6 +944,16 @@ typedef struct StrokeCache {
 
 } StrokeCache;
 
+/* Sculpt Filters */
+typedef enum SculptFilterOrientation {
+  SCULPT_FILTER_ORIENTATION_LOCAL = 0,
+  SCULPT_FILTER_ORIENTATION_WORLD = 1,
+  SCULPT_FILTER_ORIENTATION_VIEW = 2,
+} SculptFilterOrientation;
+
+void SCULPT_filter_to_orientation_space(float r_v[3], struct FilterCache *filter_cache);
+void SCULPT_filter_to_object_space(float r_v[3], struct FilterCache *filter_cache);
+
 typedef struct FilterCache {
   bool enabled_axis[3];
   bool enabled_force_axis[3];
@@ -965,6 +975,13 @@ typedef struct FilterCache {
   float *sharpen_factor;
   float (*sharpen_detail_directions)[3];
 
+  /* Filter orientaiton. */
+  SculptFilterOrientation orientation;
+  float obmat[4][4];
+  float obmat_inv[4][4];
+  float viewmat[4][4];
+  float viewmat_inv[4][4];
+
   /* unmasked nodes */
   PBVHNode **nodes;
   int totnode;