Added to the Parameter Editor mode new stroke geometry modifier `Blueprint'

that produces a blueprint using circular, elliptic, and square contour strokes.
Related changes and bug fixes were made as follows:

* The randomness in radius and center has been transformed into optional
parameters of the pyBluePrintCirclesShader and pyBluePrintEllipsesShader.
Also a new optional parameter to control the randomness of backbone
stretching has been added to the pyBluePrintSquaresShader.

* A bug in the pyBluePrintSquaresShader that invisible stroke vertices at
corners of rectangular contour strokes were not properly drawn.  The problem
was due to the changes of the / operator between Python 2.x to 3.x.  Even
when the two operands of the division operator are integers, Python 3.x
gives a floating-point number when the quotient is not an integer.  The fix
was just to replace the / operator by the // operator for integer division.

* An unpleasant discontinuity in circular and elliptical contour strokes
was fixed.

* The length parameter of the Backbone Stretcher geometry modifier has been
renamed to `backbone_length' in line with the parameter of the same name in
the pyBluePrintSquaresShader.

1 files changed, 11 insertions, 0 deletions

diff --git a/release/scripts/startup/bl_ui/properties_render.py b/release/scripts/startup/bl_ui/properties_render.py
index 71f207f6e5a..c6002a53023 100644
--- a/release/scripts/startup/bl_ui/properties_render.py
+++ b/release/scripts/startup/bl_ui/properties_render.py
@@ -550,6 +550,17 @@ class RENDER_PT_freestyle_linestyle(RenderButtonsPanel, Panel):
             elif modifier.type == "GUIDING_LINES":
                 box.prop(modifier, "offset")
 
+            elif modifier.type == "BLUEPRINT":
+                row = box.row()
+                row.prop(modifier, "shape", expand=True)
+                box.prop(modifier, "rounds")
+                if modifier.shape in ["CIRCLES", "ELLIPSES"]:
+                    box.prop(modifier, "random_radius")
+                    box.prop(modifier, "random_center")
+                elif modifier.shape == "SQUARES":
+                    box.prop(modifier, "backbone_length")
+                    box.prop(modifier, "random_backbone")
+
     def draw(self, context):
         layout = self.layout