Bevel Factor Mapping

Bevel Factor Mapping allows to control the relation between bevel factors
(number between 0 and 1) and the rendered start and end point of a beveled
spline.

There are three options: "Resolution", "Segments", "Spline". "Resolution"
option maps bevel factors as it was done < 2.71, "Spline" and "Segments"
are new.

* "Resolution“: Map the bevel factor to the number of subdivisions of a
  spline (U resolution).
* "Segments“: Map the bevel factor to the length of a segment and to the
  number of subdivisions of a segment.
* "Spline": Map the bevel factor to the length of a spline.

Reviewers: yakca, sergey, campbellbarton

CC: sanne

Differential Revision: https://developer.blender.org/D294

1 files changed, 14 insertions, 5 deletions

diff --git a/release/scripts/startup/bl_ui/properties_data_curve.py b/release/scripts/startup/bl_ui/properties_data_curve.py
index 8a3e31d8308..acfc4d1e263 100644
--- a/release/scripts/startup/bl_ui/properties_data_curve.py
+++ b/release/scripts/startup/bl_ui/properties_data_curve.py
@@ -183,13 +183,22 @@ class DATA_PT_geometry_curve(CurveButtonsPanelCurve, Panel):
         col.prop(curve, "bevel_object", text="")
 
         col = layout.column(align=True)
-        col.prop(curve, "bevel_factor_start")
-        col.prop(curve, "bevel_factor_end")
-
         row = col.row()
-        row.active = (curve.bevel_object is not None)
-        row.prop(curve, "use_fill_caps")
+        row.label(text="Bevel Factor:")
+
+        col = layout.column()
+        col.active = (curve.bevel_depth > 0 or curve.bevel_object is not None)
+        row = col.row(align=True)
+        row.prop(curve, "bevel_factor_mapping_start", text="")
+        row.prop(curve, "bevel_factor_start", text="Start")
+        row = col.row(align=True)
+        row.prop(curve, "bevel_factor_mapping_end", text="")
+        row.prop(curve, "bevel_factor_end", text="End")
+
+        row = layout.row()
+        row.active = curve.bevel_object is not None
         row.prop(curve, "use_map_taper")
+        row.prop(curve, "use_fill_caps")
 
 
 class DATA_PT_pathanim(CurveButtonsPanelCurve, Panel):