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blender-archive/scripts/freestyle/styles/sequentialsplit_sketchy.py

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# SPDX-License-Identifier: GPL-2.0-or-later
# Filename : sequentialsplit_sketchy.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Use the sequential split with two different
# predicates to specify respectively the starting and
2017-07-25 01:27:43 +10:00
# the stopping extremities for strokes
from freestyle.chainingiterators import ChainSilhouetteIterator
from freestyle.predicates import (
NotUP1D,
QuantitativeInvisibilityUP1D,
TrueUP1D,
pyBackTVertexUP0D,
pyVertexNatureUP0D,
)
from freestyle.shaders import (
ConstantColorShader,
IncreasingThicknessShader,
SpatialNoiseShader,
)
from freestyle.types import Nature, Operators
upred = QuantitativeInvisibilityUP1D(0)
Operators.select(upred)
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
# starting and stopping predicates:
start = pyVertexNatureUP0D(Nature.NON_T_VERTEX)
stop = pyBackTVertexUP0D()
Operators.sequential_split(start, stop, 10)
shaders_list = [
SpatialNoiseShader(7, 120, 2, True, True),
IncreasingThicknessShader(5, 8),
ConstantColorShader(0.2, 0.2, 0.2, 1),
]
Operators.create(TrueUP1D(), shaders_list)