b408d8af31
In addition to D319, this patch updates the parameter editor, the UI of Freestyle. Using new API functionality and experience gained in making D319, this patch provides a quite noticable speedup for commonly-used Freestyle linestyle modifiers. As this patch touches a lot of code (and mainly the foundations) it is likely that mistakes are made. The patch has been tested with a regression suite for Freestyle (https://github.com/folkertdev/freestyle-regression-tests/tree/master), but testing with scenes used in production is very much appreciated. Differential revision: https://developer.blender.org/D623 Author: flokkievids (Folkert de Vries) Reviewed by: kjym3 (Tamito Kajiyama)
1182 lines
45 KiB
Python
1182 lines
45 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# ##### END GPL LICENSE BLOCK #####
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# Filename : parameter_editor.py
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# Authors : Tamito Kajiyama
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# Date : 26/07/2010
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# Purpose : Interactive manipulation of stylization parameters
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from freestyle.types import (
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BinaryPredicate1D,
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IntegrationType,
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Interface0DIterator,
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Nature,
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Noise,
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Operators,
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StrokeAttribute,
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UnaryPredicate0D,
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UnaryPredicate1D,
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TVertex,
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Material,
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ViewEdge,
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)
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from freestyle.chainingiterators import (
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ChainPredicateIterator,
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ChainSilhouetteIterator,
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pySketchyChainSilhouetteIterator,
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pySketchyChainingIterator,
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)
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from freestyle.functions import (
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Curvature2DAngleF0D,
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Normal2DF0D,
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QuantitativeInvisibilityF1D,
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VertexOrientation2DF0D,
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CurveMaterialF0D,
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)
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from freestyle.predicates import (
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AndUP1D,
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ContourUP1D,
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ExternalContourUP1D,
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FalseBP1D,
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FalseUP1D,
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Length2DBP1D,
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NotBP1D,
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NotUP1D,
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OrUP1D,
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QuantitativeInvisibilityUP1D,
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TrueBP1D,
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TrueUP1D,
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WithinImageBoundaryUP1D,
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pyNatureUP1D,
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pyZBP1D,
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)
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from freestyle.shaders import (
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BackboneStretcherShader,
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BezierCurveShader,
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BlenderTextureShader,
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ConstantColorShader,
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GuidingLinesShader,
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PolygonalizationShader,
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SamplingShader,
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SpatialNoiseShader,
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StrokeShader,
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StrokeTextureStepShader,
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TipRemoverShader,
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pyBluePrintCirclesShader,
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pyBluePrintEllipsesShader,
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pyBluePrintSquaresShader,
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RoundCapShader,
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SquareCapShader,
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)
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from freestyle.utils import (
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ContextFunctions,
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getCurrentScene,
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iter_distance_along_stroke,
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iter_t2d_along_stroke,
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iter_distance_from_camera,
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iter_distance_from_object,
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iter_material_value,
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stroke_normal,
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bound,
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pairwise,
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BoundedProperty
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)
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from _freestyle import (
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blendRamp,
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evaluateColorRamp,
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evaluateCurveMappingF,
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)
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import time
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from mathutils import Vector
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from math import pi, sin, cos, acos, radians
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from itertools import cycle, tee
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class ColorRampModifier(StrokeShader):
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"""Primitive for the color modifiers """
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def __init__(self, blend, influence, ramp):
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StrokeShader.__init__(self)
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self.blend = blend
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self.influence = influence
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self.ramp = ramp
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def evaluate(self, t):
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col = evaluateColorRamp(self.ramp, t)
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return col.xyz # omit alpha
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def blend_ramp(self, a, b):
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return blendRamp(self.blend, a, self.influence, b)
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class ScalarBlendModifier(StrokeShader):
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"""Primitive for alpha and thickness modifiers """
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def __init__(self, blend_type, influence):
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StrokeShader.__init__(self)
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self.blend_type = blend_type
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self.influence = influence
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def blend(self, v1, v2):
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fac = self.influence
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facm = 1.0 - fac
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if self.blend_type == 'MIX':
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v1 = facm * v1 + fac * v2
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elif self.blend_type == 'ADD':
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v1 += fac * v2
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elif self.blend_type == 'MULTIPLY':
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v1 *= facm + fac * v2
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elif self.blend_type == 'SUBTRACT':
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v1 -= fac * v2
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elif self.blend_type == 'DIVIDE':
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v1 = facm * v1 + fac * v1 / v2 if v2 != 0.0 else v1
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elif self.blend_type == 'DIFFERENCE':
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v1 = facm * v1 + fac * abs(v1 - v2)
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elif self.blend_type == 'MININUM':
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v1 = min(fac * v2, v1)
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elif self.blend_type == 'MAXIMUM':
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v1 = max(fac * v2, v1)
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else:
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raise ValueError("unknown curve blend type: " + self.blend_type)
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return v1
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class CurveMappingModifier(ScalarBlendModifier):
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def __init__(self, blend, influence, mapping, invert, curve):
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ScalarBlendModifier.__init__(self, blend, influence)
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assert mapping in {'LINEAR', 'CURVE'}
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self.evaluate = getattr(self, mapping)
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self.invert = invert
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self.curve = curve
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def LINEAR(self, t):
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return (1.0 - t) if self.invert else t
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def CURVE(self, t):
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return evaluateCurveMappingF(self.curve, 0, t)
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class ThicknessModifierMixIn:
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def __init__(self):
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scene = getCurrentScene()
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self.persp_camera = (scene.camera.data.type == 'PERSP')
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def set_thickness(self, sv, outer, inner):
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fe = sv.fedge
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nature = fe.nature
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if (nature & Nature.BORDER):
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if self.persp_camera:
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point = -sv.point_3d.normalized()
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dir = point.dot(fe.normal_left)
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else:
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dir = fe.normal_left.z
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if dir < 0.0: # the back side is visible
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outer, inner = inner, outer
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elif (nature & Nature.SILHOUETTE):
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if fe.is_smooth: # TODO more tests needed
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outer, inner = inner, outer
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else:
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outer = inner = (outer + inner) / 2
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sv.attribute.thickness = (outer, inner)
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class ThicknessBlenderMixIn(ThicknessModifierMixIn):
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def __init__(self, position, ratio):
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ThicknessModifierMixIn.__init__(self)
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self.position = position
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self.ratio = ratio
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def blend_thickness(self, svert, v):
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""" Blends and sets the thickness."""
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outer, inner = svert.attribute.thickness
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fe = svert.fedge
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v = self.blend(outer + inner, v)
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# Part 1: blend
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if self.position == "CENTER":
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outer = inner = v * 0.5
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elif self.position == "INSIDE":
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outer, inner = 0, v
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elif self.position == "OUTSIDE":
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outer, inner = v, 0
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elif self.position == "RELATIVE":
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outer, inner = v * self.ratio, v - (v * self.ratio)
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else:
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raise ValueError("unknown thickness position: " + position)
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# Part 2: set
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if (fe.nature & Nature.BORDER):
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if self.persp_camera:
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point = -svert.point_3d.normalized()
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dir = point.dot(fe.normal_left)
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else:
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dir = fe.normal_left.z
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if dir < 0.0: # the back side is visible
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outer, inner = inner, outer
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elif (fe.nature & Nature.SILHOUETTE):
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if fe.is_smooth: # TODO more tests needed
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outer, inner = inner, outer
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else:
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outer = inner = (outer + inner) / 2
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svert.attribute.thickness = (outer, inner)
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class BaseThicknessShader(StrokeShader, ThicknessModifierMixIn):
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def __init__(self, thickness, position, ratio):
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StrokeShader.__init__(self)
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ThicknessModifierMixIn.__init__(self)
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if position == 'CENTER':
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self.outer = thickness * 0.5
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self.inner = thickness - self.outer
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elif position == 'INSIDE':
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self.outer = 0
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self.inner = thickness
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elif position == 'OUTSIDE':
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self.outer = thickness
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self.inner = 0
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elif position == 'RELATIVE':
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self.outer = thickness * ratio
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self.inner = thickness - self.outer
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else:
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raise ValueError("unknown thickness position: " + position)
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def shade(self, stroke):
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for svert in stroke:
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self.set_thickness(svert, self.outer, self.inner)
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# Along Stroke modifiers
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class ColorAlongStrokeShader(ColorRampModifier):
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"""Maps a ramp to the color of the stroke, using the curvilinear abscissa (t) """
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def shade(self, stroke):
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for svert, t in zip(stroke, iter_t2d_along_stroke(stroke)):
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a = svert.attribute.color
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b = self.evaluate(t)
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svert.attribute.color = self.blend_ramp(a, b)
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class AlphaAlongStrokeShader(CurveMappingModifier):
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"""Maps a curve to the alpha/transparancy of the stroke, using the curvilinear abscissa (t) """
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def shade(self, stroke):
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for svert, t in zip(stroke, iter_t2d_along_stroke(stroke)):
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a = svert.attribute.alpha
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b = self.evaluate(t)
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svert.attribute.alpha = self.blend(a, b)
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class ThicknessAlongStrokeShader(ThicknessBlenderMixIn, CurveMappingModifier):
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"""Maps a curve to the thickness of the stroke, using the curvilinear abscissa (t) """
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def __init__(self, thickness_position, thickness_ratio,
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blend, influence, mapping, invert, curve, value_min, value_max):
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ThicknessBlenderMixIn.__init__(self, thickness_position, thickness_ratio)
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CurveMappingModifier.__init__(self, blend, influence, mapping, invert, curve)
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self.value = BoundedProperty(value_min, value_max, value_max - value_min)
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def shade(self, stroke):
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for svert, t in zip(stroke, iter_t2d_along_stroke(stroke)):
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b = self.value.min + self.evaluate(t) * self.value.delta
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self.blend_thickness(svert, b)
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# -- Distance from Camera modifiers -- #
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class ColorDistanceFromCameraShader(ColorRampModifier):
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"""Picks a color value from a ramp based on the vertex' distance from the camera """
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def __init__(self, blend, influence, ramp, range_min, range_max):
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ColorRampModifier.__init__(self, blend, influence, ramp)
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self.range = BoundedProperty(range_min, range_max, range_max - range_min)
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def shade(self, stroke):
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it = iter_distance_from_camera(stroke, *self.range)
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for svert, t in it:
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a = svert.attribute.color
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b = self.evaluate(t)
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svert.attribute.color = self.blend_ramp(a, b)
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class AlphaDistanceFromCameraShader(CurveMappingModifier):
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"""Picks an alpha value from a curve based on the vertex' distance from the camera """
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def __init__(self, blend, influence, mapping, invert, curve, range_min, range_max):
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CurveMappingModifier.__init__(self, blend, influence, mapping, invert, curve)
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self.range = BoundedProperty(range_min, range_max, range_max - range_min)
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def shade(self, stroke):
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it = iter_distance_from_camera(stroke, *self.range)
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for svert, t in it:
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a = svert.attribute.alpha
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b = self.evaluate(t)
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svert.attribute.alpha = self.blend(a, b)
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class ThicknessDistanceFromCameraShader(ThicknessBlenderMixIn, CurveMappingModifier):
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"""Picks a thickness value from a curve based on the vertex' distance from the camera """
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def __init__(self, thickness_position, thickness_ratio,
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blend, influence, mapping, invert, curve, range_min, range_max, value_min, value_max):
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ThicknessBlenderMixIn.__init__(self, thickness_position, thickness_ratio)
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CurveMappingModifier.__init__(self, blend, influence, mapping, invert, curve)
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self.range = BoundedProperty(range_min, range_max, range_max - range_min)
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self.value = BoundedProperty(value_min, value_max, value_max - value_min)
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def shade(self, stroke):
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for (svert, t) in iter_distance_from_camera(stroke, *self.range):
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b = self.value.min + self.evaluate(t) * self.value.delta
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self.blend_thickness(svert, b)
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# Distance from Object modifiers
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class ColorDistanceFromObjectShader(ColorRampModifier):
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"""Picks a color value from a ramp based on the vertex' distance from a given object """
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def __init__(self, blend, influence, ramp, target, range_min, range_max):
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ColorRampModifier.__init__(self, blend, influence, ramp)
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if target is None:
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raise ValueError("ColorDistanceFromObjectShader: target can't be None ")
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self.range = BoundedProperty(range_min, range_max, range_max - range_min)
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# construct a model-view matrix
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matrix = getCurrentScene().camera.matrix_world.inverted()
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# get the object location in the camera coordinate
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self.loc = matrix * target.location
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def shade(self, stroke):
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it = iter_distance_from_object(stroke, self.loc, *self.range)
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for svert, t in it:
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a = svert.attribute.color
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b = self.evaluate(t)
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svert.attribute.color = self.blend_ramp(a, b)
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class AlphaDistanceFromObjectShader(CurveMappingModifier):
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"""Picks an alpha value from a curve based on the vertex' distance from a given object """
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def __init__(self, blend, influence, mapping, invert, curve, target, range_min, range_max):
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CurveMappingModifier.__init__(self, blend, influence, mapping, invert, curve)
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if target is None:
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raise ValueError("AlphaDistanceFromObjectShader: target can't be None ")
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self.range = BoundedProperty(range_min, range_max, range_max - range_min)
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# construct a model-view matrix
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matrix = getCurrentScene().camera.matrix_world.inverted()
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# get the object location in the camera coordinate
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self.loc = matrix * target.location
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def shade(self, stroke):
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it = iter_distance_from_object(stroke, self.loc, *self.range)
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for svert, t in it:
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a = svert.attribute.alpha
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b = self.evaluate(t)
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svert.attribute.alpha = self.blend(a, b)
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class ThicknessDistanceFromObjectShader(ThicknessBlenderMixIn, CurveMappingModifier):
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"""Picks a thickness value from a curve based on the vertex' distance from a given object """
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def __init__(self, thickness_position, thickness_ratio,
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blend, influence, mapping, invert, curve, target, range_min, range_max, value_min, value_max):
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ThicknessBlenderMixIn.__init__(self, thickness_position, thickness_ratio)
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CurveMappingModifier.__init__(self, blend, influence, mapping, invert, curve)
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if target is None:
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raise ValueError("ThicknessDistanceFromObjectShader: target can't be None ")
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self.range = BoundedProperty(range_min, range_max, range_max - range_min)
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self.value = BoundedProperty(value_min, value_max, value_max - value_min)
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# construct a model-view matrix
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matrix = getCurrentScene().camera.matrix_world.inverted()
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# get the object location in the camera coordinate
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self.loc = matrix * target.location
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def shade(self, stroke):
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it = iter_distance_from_object(stroke, self.loc, *self.range)
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for svert, t in it:
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b = self.value.min + self.evaluate(t) * self.value.delta
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self.blend_thickness(svert, b)
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# Material modifiers
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class ColorMaterialShader(ColorRampModifier):
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""" Assigns a color to the vertices based on their underlying material """
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def __init__(self, blend, influence, ramp, material_attribute, use_ramp):
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ColorRampModifier.__init__(self, blend, influence, ramp)
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self.attribute = material_attribute
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self.use_ramp = use_ramp
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self.func = CurveMaterialF0D()
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def shade(self, stroke, attributes={'DIFF', 'SPEC', 'LINE'}):
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it = Interface0DIterator(stroke)
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if not self.use_ramp and self.attribute in attributes:
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for svert in it:
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material = self.func(it)
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if self.attribute == 'DIFF':
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b = material.diffuse[0:3]
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elif self.attribute == 'LINE':
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b = material.line[0:3]
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else:
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b = material.specular[0:3]
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a = svert.attribute.color
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svert.attribute.color = self.blend_ramp(a, b)
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else:
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for svert, value in iter_material_value(stroke, self.func, self.attribute):
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a = svert.attribute.color
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b = self.evaluate(value)
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svert.attribute.color = self.blend_ramp(a, b)
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class AlphaMaterialShader(CurveMappingModifier):
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""" Assigns an alpha value to the vertices based on their underlying material """
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def __init__(self, blend, influence, mapping, invert, curve, material_attribute):
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CurveMappingModifier.__init__(self, blend, influence, mapping, invert, curve)
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self.attribute = material_attribute
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self.func = CurveMaterialF0D()
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def shade(self, stroke):
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for svert, value in iter_material_value(stroke, self.func, self.attribute):
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a = svert.attribute.alpha
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b = self.evaluate(value)
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svert.attribute.alpha = self.blend(a, b)
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class ThicknessMaterialShader(ThicknessBlenderMixIn, CurveMappingModifier):
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""" Assigns a thickness value to the vertices based on their underlying material """
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def __init__(self, thickness_position, thickness_ratio,
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blend, influence, mapping, invert, curve, material_attribute, value_min, value_max):
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ThicknessBlenderMixIn.__init__(self, thickness_position, thickness_ratio)
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CurveMappingModifier.__init__(self, blend, influence, mapping, invert, curve)
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self.attribute = material_attribute
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self.value = BoundedProperty(value_min, value_max, value_max - value_min)
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self.func = CurveMaterialF0D()
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def shade(self, stroke):
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for svert, value in iter_material_value(stroke, self.func, self.attribute):
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b = self.value.min + self.evaluate(value) * self.value.delta
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self.blend_thickness(svert, b)
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# Calligraphic thickness modifier
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class CalligraphicThicknessShader(ThicknessBlenderMixIn, ScalarBlendModifier):
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"""Thickness modifier for achieving a calligraphy-like effect """
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def __init__(self, thickness_position, thickness_ratio,
|
|
blend_type, influence, orientation, thickness_min, thickness_max):
|
|
ThicknessBlenderMixIn.__init__(self, thickness_position, thickness_ratio)
|
|
ScalarBlendModifier.__init__(self, blend_type, influence)
|
|
self.orientation = Vector((cos(orientation), sin(orientation)))
|
|
self.thickness = BoundedProperty(thickness_min, thickness_max, thickness_max - thickness_min)
|
|
self.func = VertexOrientation2DF0D()
|
|
|
|
def shade(self, stroke):
|
|
it = Interface0DIterator(stroke)
|
|
for svert in it:
|
|
dir = self.func(it)
|
|
if dir.length != 0.0:
|
|
dir.normalize()
|
|
fac = abs(dir.orthogonal() * self.orientation)
|
|
b = self.thickness.min + fac * self.thickness.delta
|
|
else:
|
|
b = self.thickness.min
|
|
self.blend_thickness(svert, b)
|
|
|
|
|
|
# Geometry modifiers
|
|
|
|
class SinusDisplacementShader(StrokeShader):
|
|
"""Displaces the stroke in a sinewave-like shape """
|
|
def __init__(self, wavelength, amplitude, phase):
|
|
StrokeShader.__init__(self)
|
|
self.wavelength = wavelength
|
|
self.amplitude = amplitude
|
|
self.phase = phase / wavelength * 2 * pi
|
|
|
|
def shade(self, stroke):
|
|
# normals are stored in a tuple, so they don't update when we reposition vertices.
|
|
normals = tuple(stroke_normal(stroke))
|
|
distances = iter_distance_along_stroke(stroke)
|
|
coeff = 1 / self.wavelength * 2 * pi
|
|
for svert, distance, normal in zip(stroke, distances, normals):
|
|
n = normal * self.amplitude * cos(distance * coeff + self.phase)
|
|
svert.point += n
|
|
stroke.update_length()
|
|
|
|
|
|
class PerlinNoise1DShader(StrokeShader):
|
|
"""
|
|
Displaces the stroke using the curvilinear abscissa. This means
|
|
that lines with the same length and sampling interval will be
|
|
identically distorded
|
|
"""
|
|
def __init__(self, freq=10, amp=10, oct=4, angle=radians(45), seed=-1):
|
|
StrokeShader.__init__(self)
|
|
self.noise = Noise(seed)
|
|
self.freq = freq
|
|
self.amp = amp
|
|
self.oct = oct
|
|
self.dir = Vector((cos(angle), sin(angle)))
|
|
|
|
def shade(self, stroke):
|
|
length = stroke.length_2d
|
|
for svert in stroke:
|
|
nres = self.noise.turbulence1(length * svert.u, self.freq, self.amp, self.oct)
|
|
svert.point += nres * self.dir
|
|
stroke.update_length()
|
|
|
|
|
|
class PerlinNoise2DShader(StrokeShader):
|
|
"""
|
|
Displaces the stroke using the strokes coordinates. This means
|
|
that in a scene no strokes will be distorded identically
|
|
|
|
More information on the noise shaders can be found at
|
|
freestyleintegration.wordpress.com/2011/09/25/development-updates-on-september-25/
|
|
"""
|
|
def __init__(self, freq=10, amp=10, oct=4, angle=radians(45), seed=-1):
|
|
StrokeShader.__init__(self)
|
|
self.noise = Noise(seed)
|
|
self.freq = freq
|
|
self.amp = amp
|
|
self.oct = oct
|
|
self.dir = Vector((cos(angle), sin(angle)))
|
|
|
|
def shade(self, stroke):
|
|
for svert in stroke:
|
|
projected = Vector((svert.projected_x, svert.projected_y))
|
|
nres = self.noise.turbulence2(projected, self.freq, self.amp, self.oct)
|
|
svert.point += nres * self.dir
|
|
stroke.update_length()
|
|
|
|
|
|
class Offset2DShader(StrokeShader):
|
|
"""Offsets the stroke by a given amount """
|
|
def __init__(self, start, end, x, y):
|
|
StrokeShader.__init__(self)
|
|
self.start = start
|
|
self.end = end
|
|
self.xy = Vector((x, y))
|
|
|
|
def shade(self, stroke):
|
|
# normals are stored in a tuple, so they don't update when we reposition vertices.
|
|
normals = tuple(stroke_normal(stroke))
|
|
for svert, normal in zip(stroke, normals):
|
|
a = self.start + svert.u * (self.end - self.start)
|
|
svert.point += (normal * a) + self.xy
|
|
stroke.update_length()
|
|
|
|
|
|
class Transform2DShader(StrokeShader):
|
|
"""Transforms the stroke (scale, rotation, location) around a given pivot point """
|
|
def __init__(self, pivot, scale_x, scale_y, angle, pivot_u, pivot_x, pivot_y):
|
|
StrokeShader.__init__(self)
|
|
self.pivot = pivot
|
|
self.scale = Vector((scale_x, scale_y))
|
|
self.cos_theta = cos(angle)
|
|
self.sin_theta = sin(angle)
|
|
self.pivot_u = pivot_u
|
|
self.pivot_x = pivot_x
|
|
self.pivot_y = pivot_y
|
|
if pivot not in {'START', 'END', 'CENTER', 'ABSOLUTE', 'PARAM'}:
|
|
raise ValueError("expected pivot in {'START', 'END', 'CENTER', 'ABSOLUTE', 'PARAM'}, not" + pivot)
|
|
|
|
def shade(self, stroke):
|
|
# determine the pivot of scaling and rotation operations
|
|
if self.pivot == 'START':
|
|
pivot = stroke[0].point
|
|
elif self.pivot == 'END':
|
|
pivot = stroke[-1].point
|
|
elif self.pivot == 'CENTER':
|
|
# minor rounding errors here, because
|
|
# given v = Vector(a, b), then (v / n) != Vector(v.x / n, v.y / n)
|
|
pivot = (1 / len(stroke)) * sum((svert.point for svert in stroke), Vector((0.0, 0.0)))
|
|
elif self.pivot == 'ABSOLUTE':
|
|
pivot = Vector((self.pivot_x, self.pivot_y))
|
|
elif self.pivot == 'PARAM':
|
|
if self.pivot_u < stroke[0].u:
|
|
pivot = stroke[0].point
|
|
else:
|
|
for prev, svert in pairwise(stroke):
|
|
if self.pivot_u < svert.u:
|
|
break
|
|
pivot = svert.point + (svert.u - self.pivot_u) * (prev.point - svert.point)
|
|
|
|
# apply scaling and rotation operations
|
|
for svert in stroke:
|
|
p = (svert.point - pivot)
|
|
x = p.x * self.scale.x
|
|
y = p.y * self.scale.y
|
|
p.x = x * self.cos_theta - y * self.sin_theta
|
|
p.y = x * self.sin_theta + y * self.cos_theta
|
|
svert.point = p + pivot
|
|
stroke.update_length()
|
|
|
|
|
|
# Predicates and helper functions
|
|
|
|
class QuantitativeInvisibilityRangeUP1D(UnaryPredicate1D):
|
|
def __init__(self, qi_start, qi_end):
|
|
UnaryPredicate1D.__init__(self)
|
|
self.getQI = QuantitativeInvisibilityF1D()
|
|
self.qi_start = qi_start
|
|
self.qi_end = qi_end
|
|
|
|
def __call__(self, inter):
|
|
qi = self.getQI(inter)
|
|
return self.qi_start <= qi <= self.qi_end
|
|
|
|
|
|
class ObjectNamesUP1D(UnaryPredicate1D):
|
|
def __init__(self, names, negative):
|
|
UnaryPredicate1D.__init__(self)
|
|
self.names = names
|
|
self.negative = negative
|
|
|
|
def __call__(self, viewEdge):
|
|
found = viewEdge.viewshape.name in self.names
|
|
if self.negative:
|
|
return not found
|
|
return found
|
|
|
|
|
|
# -- Split by dashed line pattern -- #
|
|
|
|
class SplitPatternStartingUP0D(UnaryPredicate0D):
|
|
def __init__(self, controller):
|
|
UnaryPredicate0D.__init__(self)
|
|
self.controller = controller
|
|
|
|
def __call__(self, inter):
|
|
return self.controller.start()
|
|
|
|
|
|
class SplitPatternStoppingUP0D(UnaryPredicate0D):
|
|
def __init__(self, controller):
|
|
UnaryPredicate0D.__init__(self)
|
|
self.controller = controller
|
|
|
|
def __call__(self, inter):
|
|
return self.controller.stop()
|
|
|
|
|
|
class SplitPatternController:
|
|
def __init__(self, pattern, sampling):
|
|
self.sampling = float(sampling)
|
|
k = len(pattern) // 2
|
|
n = k * 2
|
|
self.start_pos = [pattern[i] + pattern[i + 1] for i in range(0, n, 2)]
|
|
self.stop_pos = [pattern[i] for i in range(0, n, 2)]
|
|
self.init()
|
|
|
|
def init(self):
|
|
self.start_len = 0.0
|
|
self.start_idx = 0
|
|
self.stop_len = self.sampling
|
|
self.stop_idx = 0
|
|
|
|
def start(self):
|
|
self.start_len += self.sampling
|
|
if abs(self.start_len - self.start_pos[self.start_idx]) < self.sampling / 2.0:
|
|
self.start_len = 0.0
|
|
self.start_idx = (self.start_idx + 1) % len(self.start_pos)
|
|
return True
|
|
return False
|
|
|
|
def stop(self):
|
|
if self.start_len > 0.0:
|
|
self.init()
|
|
self.stop_len += self.sampling
|
|
if abs(self.stop_len - self.stop_pos[self.stop_idx]) < self.sampling / 2.0:
|
|
self.stop_len = self.sampling
|
|
self.stop_idx = (self.stop_idx + 1) % len(self.stop_pos)
|
|
return True
|
|
return False
|
|
|
|
|
|
# Dashed line
|
|
|
|
class DashedLineShader(StrokeShader):
|
|
def __init__(self, pattern):
|
|
StrokeShader.__init__(self)
|
|
self.pattern = pattern
|
|
|
|
def shade(self, stroke):
|
|
start = 0.0 # 2D curvilinear length
|
|
visible = True
|
|
""" The extra 'sampling' term is added below, because the
|
|
visibility attribute of the i-th vertex refers to the
|
|
visibility of the stroke segment between the i-th and
|
|
(i+1)-th vertices. """
|
|
sampling = 1.0
|
|
it = stroke.stroke_vertices_begin(sampling)
|
|
pattern_cycle = cycle(self.pattern)
|
|
pattern = next(pattern_cycle)
|
|
for svert in it:
|
|
pos = it.t # curvilinear abscissa
|
|
|
|
if pos - start + sampling > pattern:
|
|
start = pos
|
|
pattern = next(pattern_cycle)
|
|
visible = not visible
|
|
|
|
if not visible:
|
|
it.object.attribute.visible = False
|
|
|
|
|
|
# predicates for chaining
|
|
|
|
class AngleLargerThanBP1D(BinaryPredicate1D):
|
|
def __init__(self, angle):
|
|
BinaryPredicate1D.__init__(self)
|
|
self.angle = angle
|
|
|
|
def __call__(self, i1, i2):
|
|
sv1a = i1.first_fedge.first_svertex.point_2d
|
|
sv1b = i1.last_fedge.second_svertex.point_2d
|
|
sv2a = i2.first_fedge.first_svertex.point_2d
|
|
sv2b = i2.last_fedge.second_svertex.point_2d
|
|
if (sv1a - sv2a).length < 1e-6:
|
|
dir1 = sv1a - sv1b
|
|
dir2 = sv2b - sv2a
|
|
elif (sv1b - sv2b).length < 1e-6:
|
|
dir1 = sv1b - sv1a
|
|
dir2 = sv2a - sv2b
|
|
elif (sv1a - sv2b).length < 1e-6:
|
|
dir1 = sv1a - sv1b
|
|
dir2 = sv2a - sv2b
|
|
elif (sv1b - sv2a).length < 1e-6:
|
|
dir1 = sv1b - sv1a
|
|
dir2 = sv2b - sv2a
|
|
else:
|
|
return False
|
|
denom = dir1.length * dir2.length
|
|
if denom < 1e-6:
|
|
return False
|
|
x = (dir1 * dir2) / denom
|
|
return acos(bound(-1.0, x, 1.0)) > self.angle
|
|
|
|
# predicates for selection
|
|
|
|
|
|
class LengthThresholdUP1D(UnaryPredicate1D):
|
|
def __init__(self, length_min=None, length_max=None):
|
|
UnaryPredicate1D.__init__(self)
|
|
self.length_min = length_min
|
|
self.length_max = length_max
|
|
|
|
def __call__(self, inter):
|
|
length = inter.length_2d
|
|
if self.length_min is not None and length < self.length_min:
|
|
return False
|
|
if self.length_max is not None and length > self.length_max:
|
|
return False
|
|
return True
|
|
|
|
|
|
class FaceMarkBothUP1D(UnaryPredicate1D):
|
|
def __call__(self, inter: ViewEdge):
|
|
fe = inter.first_fedge
|
|
while fe is not None:
|
|
if fe.is_smooth:
|
|
if fe.face_mark:
|
|
return True
|
|
elif (fe.nature & Nature.BORDER):
|
|
if fe.face_mark_left:
|
|
return True
|
|
else:
|
|
if fe.face_mark_right and fe.face_mark_left:
|
|
return True
|
|
fe = fe.next_fedge
|
|
return False
|
|
|
|
|
|
class FaceMarkOneUP1D(UnaryPredicate1D):
|
|
def __call__(self, inter: ViewEdge):
|
|
fe = inter.first_fedge
|
|
while fe is not None:
|
|
if fe.is_smooth:
|
|
if fe.face_mark:
|
|
return True
|
|
elif (fe.nature & Nature.BORDER):
|
|
if fe.face_mark_left:
|
|
return True
|
|
else:
|
|
if fe.face_mark_right or fe.face_mark_left:
|
|
return True
|
|
fe = fe.next_fedge
|
|
return False
|
|
|
|
|
|
# predicates for splitting
|
|
|
|
class MaterialBoundaryUP0D(UnaryPredicate0D):
|
|
def __call__(self, it):
|
|
if (it.is_begin or it.is_end):
|
|
return False
|
|
else:
|
|
it.decrement()
|
|
prev = it.object
|
|
svert = next(it)
|
|
succ = next(it)
|
|
|
|
fe = svert.get_fedge(prev)
|
|
idx1 = fe.material_index if fe.is_smooth else fe.material_index_left
|
|
fe = svert.get_fedge(succ)
|
|
idx2 = fe.material_index if fe.is_smooth else fe.material_index_left
|
|
return idx1 != idx2
|
|
|
|
|
|
class Curvature2DAngleThresholdUP0D(UnaryPredicate0D):
|
|
def __init__(self, angle_min=None, angle_max=None):
|
|
UnaryPredicate0D.__init__(self)
|
|
self.angle_min = angle_min
|
|
self.angle_max = angle_max
|
|
self.func = Curvature2DAngleF0D()
|
|
|
|
def __call__(self, inter):
|
|
angle = pi - self.func(inter)
|
|
if self.angle_min is not None and angle < self.angle_min:
|
|
return True
|
|
if self.angle_max is not None and angle > self.angle_max:
|
|
return True
|
|
return False
|
|
|
|
|
|
class Length2DThresholdUP0D(UnaryPredicate0D):
|
|
def __init__(self, length_limit):
|
|
UnaryPredicate0D.__init__(self)
|
|
self.length_limit = length_limit
|
|
self.t = 0.0
|
|
|
|
def __call__(self, inter):
|
|
t = inter.t # curvilinear abscissa
|
|
if t < self.t:
|
|
self.t = 0.0
|
|
return False
|
|
if t - self.t < self.length_limit:
|
|
return False
|
|
self.t = t
|
|
return True
|
|
|
|
|
|
# Seed for random number generation
|
|
|
|
class Seed:
|
|
def __init__(self):
|
|
self.t_max = 2 ** 15
|
|
self.t = int(time.time()) % self.t_max
|
|
|
|
def get(self, seed):
|
|
if seed < 0:
|
|
self.t = (self.t + 1) % self.t_max
|
|
return self.t
|
|
return seed
|
|
|
|
_seed = Seed()
|
|
|
|
|
|
integration_types = {
|
|
'MEAN': IntegrationType.MEAN,
|
|
'MIN': IntegrationType.MIN,
|
|
'MAX': IntegrationType.MAX,
|
|
'FIRST': IntegrationType.FIRST,
|
|
'LAST': IntegrationType.LAST}
|
|
|
|
|
|
# main function for parameter processing
|
|
|
|
def process(layer_name, lineset_name):
|
|
scene = getCurrentScene()
|
|
layer = scene.render.layers[layer_name]
|
|
lineset = layer.freestyle_settings.linesets[lineset_name]
|
|
linestyle = lineset.linestyle
|
|
|
|
selection_criteria = []
|
|
# prepare selection criteria by visibility
|
|
if lineset.select_by_visibility:
|
|
if lineset.visibility == 'VISIBLE':
|
|
selection_criteria.append(
|
|
QuantitativeInvisibilityUP1D(0))
|
|
elif lineset.visibility == 'HIDDEN':
|
|
selection_criteria.append(
|
|
NotUP1D(QuantitativeInvisibilityUP1D(0)))
|
|
elif lineset.visibility == 'RANGE':
|
|
selection_criteria.append(
|
|
QuantitativeInvisibilityRangeUP1D(lineset.qi_start, lineset.qi_end))
|
|
# prepare selection criteria by edge types
|
|
if lineset.select_by_edge_types:
|
|
edge_type_criteria = []
|
|
if lineset.select_silhouette:
|
|
upred = pyNatureUP1D(Nature.SILHOUETTE)
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_silhouette else upred)
|
|
if lineset.select_border:
|
|
upred = pyNatureUP1D(Nature.BORDER)
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_border else upred)
|
|
if lineset.select_crease:
|
|
upred = pyNatureUP1D(Nature.CREASE)
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_crease else upred)
|
|
if lineset.select_ridge_valley:
|
|
upred = pyNatureUP1D(Nature.RIDGE)
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_ridge_valley else upred)
|
|
if lineset.select_suggestive_contour:
|
|
upred = pyNatureUP1D(Nature.SUGGESTIVE_CONTOUR)
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_suggestive_contour else upred)
|
|
if lineset.select_material_boundary:
|
|
upred = pyNatureUP1D(Nature.MATERIAL_BOUNDARY)
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_material_boundary else upred)
|
|
if lineset.select_edge_mark:
|
|
upred = pyNatureUP1D(Nature.EDGE_MARK)
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_edge_mark else upred)
|
|
if lineset.select_contour:
|
|
upred = ContourUP1D()
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_contour else upred)
|
|
if lineset.select_external_contour:
|
|
upred = ExternalContourUP1D()
|
|
edge_type_criteria.append(NotUP1D(upred) if lineset.exclude_external_contour else upred)
|
|
if lineset.edge_type_combination == 'OR':
|
|
upred = OrUP1D(*edge_type_criteria)
|
|
else:
|
|
upred = AndUP1D(*edge_type_criteria)
|
|
if upred is not None:
|
|
if lineset.edge_type_negation == 'EXCLUSIVE':
|
|
upred = NotUP1D(upred)
|
|
selection_criteria.append(upred)
|
|
# prepare selection criteria by face marks
|
|
if lineset.select_by_face_marks:
|
|
if lineset.face_mark_condition == 'BOTH':
|
|
upred = FaceMarkBothUP1D()
|
|
else:
|
|
upred = FaceMarkOneUP1D()
|
|
|
|
if lineset.face_mark_negation == 'EXCLUSIVE':
|
|
upred = NotUP1D(upred)
|
|
selection_criteria.append(upred)
|
|
# prepare selection criteria by group of objects
|
|
if lineset.select_by_group:
|
|
if lineset.group is not None:
|
|
names = {ob.name: True for ob in lineset.group.objects}
|
|
upred = ObjectNamesUP1D(names, lineset.group_negation == 'EXCLUSIVE')
|
|
selection_criteria.append(upred)
|
|
# prepare selection criteria by image border
|
|
if lineset.select_by_image_border:
|
|
upred = WithinImageBoundaryUP1D(*ContextFunctions.get_border())
|
|
selection_criteria.append(upred)
|
|
# select feature edges
|
|
upred = AndUP1D(*selection_criteria)
|
|
if upred is None:
|
|
upred = TrueUP1D()
|
|
Operators.select(upred)
|
|
# join feature edges to form chains
|
|
if linestyle.use_chaining:
|
|
if linestyle.chaining == 'PLAIN':
|
|
if linestyle.use_same_object:
|
|
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
|
|
else:
|
|
Operators.bidirectional_chain(ChainPredicateIterator(upred, TrueBP1D()), NotUP1D(upred))
|
|
elif linestyle.chaining == 'SKETCHY':
|
|
if linestyle.use_same_object:
|
|
Operators.bidirectional_chain(pySketchyChainSilhouetteIterator(linestyle.rounds))
|
|
else:
|
|
Operators.bidirectional_chain(pySketchyChainingIterator(linestyle.rounds))
|
|
else:
|
|
Operators.chain(ChainPredicateIterator(FalseUP1D(), FalseBP1D()), NotUP1D(upred))
|
|
# split chains
|
|
if linestyle.material_boundary:
|
|
Operators.sequential_split(MaterialBoundaryUP0D())
|
|
if linestyle.use_angle_min or linestyle.use_angle_max:
|
|
angle_min = linestyle.angle_min if linestyle.use_angle_min else None
|
|
angle_max = linestyle.angle_max if linestyle.use_angle_max else None
|
|
Operators.sequential_split(Curvature2DAngleThresholdUP0D(angle_min, angle_max))
|
|
if linestyle.use_split_length:
|
|
Operators.sequential_split(Length2DThresholdUP0D(linestyle.split_length), 1.0)
|
|
if linestyle.use_split_pattern:
|
|
pattern = []
|
|
if linestyle.split_dash1 > 0 and linestyle.split_gap1 > 0:
|
|
pattern.append(linestyle.split_dash1)
|
|
pattern.append(linestyle.split_gap1)
|
|
if linestyle.split_dash2 > 0 and linestyle.split_gap2 > 0:
|
|
pattern.append(linestyle.split_dash2)
|
|
pattern.append(linestyle.split_gap2)
|
|
if linestyle.split_dash3 > 0 and linestyle.split_gap3 > 0:
|
|
pattern.append(linestyle.split_dash3)
|
|
pattern.append(linestyle.split_gap3)
|
|
if len(pattern) > 0:
|
|
sampling = 1.0
|
|
controller = SplitPatternController(pattern, sampling)
|
|
Operators.sequential_split(SplitPatternStartingUP0D(controller),
|
|
SplitPatternStoppingUP0D(controller),
|
|
sampling)
|
|
# select chains
|
|
if linestyle.use_length_min or linestyle.use_length_max:
|
|
length_min = linestyle.length_min if linestyle.use_length_min else None
|
|
length_max = linestyle.length_max if linestyle.use_length_max else None
|
|
Operators.select(LengthThresholdUP1D(length_min, length_max))
|
|
# sort selected chains
|
|
if linestyle.use_sorting:
|
|
integration = integration_types.get(linestyle.integration_type, IntegrationType.MEAN)
|
|
if linestyle.sort_key == 'DISTANCE_FROM_CAMERA':
|
|
bpred = pyZBP1D(integration)
|
|
elif linestyle.sort_key == '2D_LENGTH':
|
|
bpred = Length2DBP1D()
|
|
if linestyle.sort_order == 'REVERSE':
|
|
bpred = NotBP1D(bpred)
|
|
Operators.sort(bpred)
|
|
# prepare a list of stroke shaders
|
|
shaders_list = []
|
|
for m in linestyle.geometry_modifiers:
|
|
if not m.use:
|
|
continue
|
|
if m.type == 'SAMPLING':
|
|
shaders_list.append(SamplingShader(
|
|
m.sampling))
|
|
elif m.type == 'BEZIER_CURVE':
|
|
shaders_list.append(BezierCurveShader(
|
|
m.error))
|
|
elif m.type == 'SINUS_DISPLACEMENT':
|
|
shaders_list.append(SinusDisplacementShader(
|
|
m.wavelength, m.amplitude, m.phase))
|
|
elif m.type == 'SPATIAL_NOISE':
|
|
shaders_list.append(SpatialNoiseShader(
|
|
m.amplitude, m.scale, m.octaves, m.smooth, m.use_pure_random))
|
|
elif m.type == 'PERLIN_NOISE_1D':
|
|
shaders_list.append(PerlinNoise1DShader(
|
|
m.frequency, m.amplitude, m.octaves, m.angle, _seed.get(m.seed)))
|
|
elif m.type == 'PERLIN_NOISE_2D':
|
|
shaders_list.append(PerlinNoise2DShader(
|
|
m.frequency, m.amplitude, m.octaves, m.angle, _seed.get(m.seed)))
|
|
elif m.type == 'BACKBONE_STRETCHER':
|
|
shaders_list.append(BackboneStretcherShader(
|
|
m.backbone_length))
|
|
elif m.type == 'TIP_REMOVER':
|
|
shaders_list.append(TipRemoverShader(
|
|
m.tip_length))
|
|
elif m.type == 'POLYGONIZATION':
|
|
shaders_list.append(PolygonalizationShader(
|
|
m.error))
|
|
elif m.type == 'GUIDING_LINES':
|
|
shaders_list.append(GuidingLinesShader(
|
|
m.offset))
|
|
elif m.type == 'BLUEPRINT':
|
|
if m.shape == 'CIRCLES':
|
|
shaders_list.append(pyBluePrintCirclesShader(
|
|
m.rounds, m.random_radius, m.random_center))
|
|
elif m.shape == 'ELLIPSES':
|
|
shaders_list.append(pyBluePrintEllipsesShader(
|
|
m.rounds, m.random_radius, m.random_center))
|
|
elif m.shape == 'SQUARES':
|
|
shaders_list.append(pyBluePrintSquaresShader(
|
|
m.rounds, m.backbone_length, m.random_backbone))
|
|
elif m.type == '2D_OFFSET':
|
|
shaders_list.append(Offset2DShader(
|
|
m.start, m.end, m.x, m.y))
|
|
elif m.type == '2D_TRANSFORM':
|
|
shaders_list.append(Transform2DShader(
|
|
m.pivot, m.scale_x, m.scale_y, m.angle, m.pivot_u, m.pivot_x, m.pivot_y))
|
|
|
|
if (not linestyle.use_chaining) or (linestyle.chaining == 'PLAIN' and linestyle.use_same_object):
|
|
thickness_position = linestyle.thickness_position
|
|
else:
|
|
thickness_position = 'CENTER'
|
|
import bpy
|
|
if bpy.app.debug_freestyle:
|
|
print("Warning: Thickness position options are applied when chaining is disabled\n"
|
|
" or the Plain chaining is used with the Same Object option enabled.")
|
|
|
|
shaders_list.append(ConstantColorShader(*(linestyle.color), alpha=linestyle.alpha))
|
|
shaders_list.append(BaseThicknessShader(linestyle.thickness, thickness_position,
|
|
linestyle.thickness_ratio))
|
|
# -- Modifiers and textures -- #
|
|
for m in linestyle.color_modifiers:
|
|
if not m.use:
|
|
continue
|
|
if m.type == 'ALONG_STROKE':
|
|
shaders_list.append(ColorAlongStrokeShader(
|
|
m.blend, m.influence, m.color_ramp))
|
|
elif m.type == 'DISTANCE_FROM_CAMERA':
|
|
shaders_list.append(ColorDistanceFromCameraShader(
|
|
m.blend, m.influence, m.color_ramp,
|
|
m.range_min, m.range_max))
|
|
elif m.type == 'DISTANCE_FROM_OBJECT' and m.target is not None:
|
|
shaders_list.append(ColorDistanceFromObjectShader(
|
|
m.blend, m.influence, m.color_ramp, m.target,
|
|
m.range_min, m.range_max))
|
|
elif m.type == 'MATERIAL':
|
|
shaders_list.append(ColorMaterialShader(
|
|
m.blend, m.influence, m.color_ramp, m.material_attribute,
|
|
m.use_ramp))
|
|
for m in linestyle.alpha_modifiers:
|
|
if not m.use:
|
|
continue
|
|
if m.type == 'ALONG_STROKE':
|
|
shaders_list.append(AlphaAlongStrokeShader(
|
|
m.blend, m.influence, m.mapping, m.invert, m.curve))
|
|
elif m.type == 'DISTANCE_FROM_CAMERA':
|
|
shaders_list.append(AlphaDistanceFromCameraShader(
|
|
m.blend, m.influence, m.mapping, m.invert, m.curve,
|
|
m.range_min, m.range_max))
|
|
elif m.type == 'DISTANCE_FROM_OBJECT' and m.target is not None:
|
|
shaders_list.append(AlphaDistanceFromObjectShader(
|
|
m.blend, m.influence, m.mapping, m.invert, m.curve, m.target,
|
|
m.range_min, m.range_max))
|
|
elif m.type == 'MATERIAL':
|
|
shaders_list.append(AlphaMaterialShader(
|
|
m.blend, m.influence, m.mapping, m.invert, m.curve,
|
|
m.material_attribute))
|
|
for m in linestyle.thickness_modifiers:
|
|
if not m.use:
|
|
continue
|
|
if m.type == 'ALONG_STROKE':
|
|
shaders_list.append(ThicknessAlongStrokeShader(
|
|
thickness_position, linestyle.thickness_ratio,
|
|
m.blend, m.influence, m.mapping, m.invert, m.curve,
|
|
m.value_min, m.value_max))
|
|
elif m.type == 'DISTANCE_FROM_CAMERA':
|
|
shaders_list.append(ThicknessDistanceFromCameraShader(
|
|
thickness_position, linestyle.thickness_ratio,
|
|
m.blend, m.influence, m.mapping, m.invert, m.curve,
|
|
m.range_min, m.range_max, m.value_min, m.value_max))
|
|
elif m.type == 'DISTANCE_FROM_OBJECT' and m.target is not None:
|
|
shaders_list.append(ThicknessDistanceFromObjectShader(
|
|
thickness_position, linestyle.thickness_ratio,
|
|
m.blend, m.influence, m.mapping, m.invert, m.curve, m.target,
|
|
m.range_min, m.range_max, m.value_min, m.value_max))
|
|
elif m.type == 'MATERIAL':
|
|
shaders_list.append(ThicknessMaterialShader(
|
|
thickness_position, linestyle.thickness_ratio,
|
|
m.blend, m.influence, m.mapping, m.invert, m.curve,
|
|
m.material_attribute, m.value_min, m.value_max))
|
|
elif m.type == 'CALLIGRAPHY':
|
|
shaders_list.append(CalligraphicThicknessShader(
|
|
thickness_position, linestyle.thickness_ratio,
|
|
m.blend, m.influence,
|
|
m.orientation, m.thickness_min, m.thickness_max))
|
|
if linestyle.use_texture:
|
|
textures = tuple(BlenderTextureShader(slot) for slot in linestyle.texture_slots if slot is not None)
|
|
if textures:
|
|
shaders_list.extend(textures)
|
|
shaders_list.append(StrokeTextureStepShader(linestyle.texture_spacing))
|
|
# -- Stroke caps -- #
|
|
if linestyle.caps == 'ROUND':
|
|
shaders_list.append(RoundCapShader())
|
|
elif linestyle.caps == 'SQUARE':
|
|
shaders_list.append(SquareCapShader())
|
|
# -- Dashed line -- #
|
|
if linestyle.use_dashed_line:
|
|
pattern = []
|
|
if linestyle.dash1 > 0 and linestyle.gap1 > 0:
|
|
pattern.append(linestyle.dash1)
|
|
pattern.append(linestyle.gap1)
|
|
if linestyle.dash2 > 0 and linestyle.gap2 > 0:
|
|
pattern.append(linestyle.dash2)
|
|
pattern.append(linestyle.gap2)
|
|
if linestyle.dash3 > 0 and linestyle.gap3 > 0:
|
|
pattern.append(linestyle.dash3)
|
|
pattern.append(linestyle.gap3)
|
|
if len(pattern) > 0:
|
|
shaders_list.append(DashedLineShader(pattern))
|
|
# create strokes using the shaders list
|
|
Operators.create(TrueUP1D(), shaders_list)
|