Fix wrong coordinates being read when using the sculpt API

The coordinates should be read from the PBVH when using deform modifiers.
This is needed for the cloth brush to work with subdivisions, as it reads the
vertex coordinates using this function when building and updating the
constraints.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D6967

2 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_pbvh.h b/source/blender/blenkernel/BKE_pbvh.h
index a26148d11bf..3971b248a2e 100644
--- a/source/blender/blenkernel/BKE_pbvh.h
+++ b/source/blender/blenkernel/BKE_pbvh.h
@@ -470,6 +470,8 @@ void BKE_pbvh_parallel_range(const int start,
                              PBVHParallelRangeFunc func,
                              const struct PBVHParallelSettings *settings);
 
+struct MVert *BKE_pbvh_get_verts(const PBVH *bvh);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/blender/blenkernel/intern/pbvh.c b/source/blender/blenkernel/intern/pbvh.c
index efe13fc8817..95e7218a920 100644
--- a/source/blender/blenkernel/intern/pbvh.c
+++ b/source/blender/blenkernel/intern/pbvh.c
@@ -2885,3 +2885,9 @@ void BKE_pbvh_parallel_range_settings(PBVHParallelSettings *settings,
   memset(settings, 0, sizeof(*settings));
   settings->use_threading = use_threading && totnode > 1;
 }
+
+MVert *BKE_pbvh_get_verts(const PBVH *bvh)
+{
+  BLI_assert(bvh->type == PBVH_FACES);
+  return bvh->verts;
+}