Sculpt: Option to lock the rotation in the Pose Brush scale deform mode

The scale deform mode includes rotation by default, so when when scaling
down a part of the models it becomes harder to control as the effect of
the rotation less predictable (similar to using trackball rotation in a
very small radius). This locks the rotation of the segment, so parts of
the model can be scaled down in a more predictable way.

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D8465

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_brush.c b/source/blender/makesrna/intern/rna_brush.c
index 73ffff07c6c..7772912e261 100644
--- a/source/blender/makesrna/intern/rna_brush.c
+++ b/source/blender/makesrna/intern/rna_brush.c
@@ -2803,6 +2803,13 @@ static void rna_def_brush(BlenderRNA *brna)
       prop, "Keep Anchor Point", "Keep the position of the last segment in the IK chain fixed");
   RNA_def_property_update(prop, 0, "rna_Brush_update");
 
+  prop = RNA_def_property(srna, "use_pose_lock_rotation", PROP_BOOLEAN, PROP_NONE);
+  RNA_def_property_boolean_sdna(prop, NULL, "flag2", BRUSH_POSE_USE_LOCK_ROTATION);
+  RNA_def_property_ui_text(prop,
+                           "Lock Rotation When Scaling",
+                           "Do not rotate the segment when using the scale deform mode");
+  RNA_def_property_update(prop, 0, "rna_Brush_update");
+
   prop = RNA_def_property(srna, "use_connected_only", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(prop, NULL, "flag2", BRUSH_USE_CONNECTED_ONLY);
   RNA_def_property_ui_text(prop, "Connected Only", "Affect only topologically connected elements");