Sculpt: New Layer Brush

The Layer brush was in Blender before 2.81, when the sculpt API was
introduced. It had a huge amount of bugs and glitches which made it
almost unusable for anything but the most trivial cases. Also, it needed
some hacks in the code just to support the persistent base.

The brush was completely rewritten using the Sculpt API. It fulfills the
same use case as the old one, but it has:
- All previous artifacts fixed
- Simpler code
- Persistent base now works with multires thanks to the sculpt API
- Small cursor widget to preview the layer height
- More controllable and smoother strength and deformation
- More correct masking support
- More predictable invert support. When using persistent base, the brush invert mode resets to layer height 0, instead of jumping from +1 to -1. The brush can still be inverted in the brush direction property.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D7147

1 files changed, 0 insertions, 9 deletions

diff --git a/source/blender/blenkernel/BKE_pbvh.h b/source/blender/blenkernel/BKE_pbvh.h
index a59ce816e26..94f0e544a6b 100644
--- a/source/blender/blenkernel/BKE_pbvh.h
+++ b/source/blender/blenkernel/BKE_pbvh.h
@@ -122,7 +122,6 @@ void BKE_pbvh_build_bmesh(PBVH *bvh,
                           const int cd_vert_node_offset,
                           const int cd_face_node_offset);
 void BKE_pbvh_free(PBVH *bvh);
-void BKE_pbvh_free_layer_disp(PBVH *bvh);
 
 /* Hierarchical Search in the BVH, two methods:
  * - for each hit calling a callback
@@ -310,14 +309,6 @@ void BKE_pbvh_face_sets_set(PBVH *bvh, int *face_sets);
 
 void BKE_pbvh_face_sets_color_set(PBVH *bvh, int seed, int color_default);
 
-/* Layer displacement */
-
-/* Get the node's displacement layer, creating it if necessary */
-float *BKE_pbvh_node_layer_disp_get(PBVH *pbvh, PBVHNode *node);
-
-/* If the node has a displacement layer, free it and set to null */
-void BKE_pbvh_node_layer_disp_free(PBVHNode *node);
-
 /* vertex deformer */
 float (*BKE_pbvh_vert_coords_alloc(struct PBVH *pbvh))[3];
 void BKE_pbvh_vert_coords_apply(struct PBVH *pbvh, const float (*vertCos)[3], const int totvert);