Use curve radius for paths

- use_radius option, off by default for 2.4x files, on by default on new curves.
- curve deform modifiers (think tentacles)
- follow path (parent mode and constraint)
- curve guides
- added back Alt+S to scale point radius
- Mat3Scale and Mat4Scale arithb.c functions to make a new uniform scale matrix.

- TODO, effectors, looks like they have no way to scale from the radius yet.

2 files changed, 5 insertions, 3 deletions

diff --git a/release/ui/buttons_data_curve.py b/release/ui/buttons_data_curve.py
index 010acd1479d..1a5e56b02a4 100644
--- a/release/ui/buttons_data_curve.py
+++ b/release/ui/buttons_data_curve.py
@@ -142,6 +142,7 @@ class DATA_PT_pathanim(DataButtonsPanelCurve):
 
 		col = split.column()
 		col.itemR(curve, "use_stretch")
+		col.itemR(curve, "use_radius")
 		col.itemR(curve, "use_time_offset", text="Offset Children")
 	
 class DATA_PT_active_spline(DataButtonsPanelActive):
diff --git a/release/ui/buttons_object_constraint.py b/release/ui/buttons_object_constraint.py
index ff3231a9d61..c8f7e467a18 100644
--- a/release/ui/buttons_object_constraint.py
+++ b/release/ui/buttons_object_constraint.py
@@ -124,11 +124,12 @@ class ConstraintButtonsPanel(bpy.types.Panel):
 		split = layout.split()
 		
 		col = split.column()
-		col.itemR(con, "curve_follow")
+		col.itemR(con, "use_curve_follow")
+		col.itemR(con, "use_curve_radius")
 		
 		col = split.column()
-		col.itemR(con, "fixed_position")
-		if con.fixed_position:
+		col.itemR(con, "use_fixed_position")
+		if con.use_fixed_position:
 			col.itemR(con, "offset_percentage", text="Offset")
 		else:
 			col.itemR(con, "offset")