forked from bartvdbraak/blender
62 lines
2.3 KiB
Python
Executable File
62 lines
2.3 KiB
Python
Executable File
#
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# Filename : thickness_fof_depth_discontinuity.py
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# Author : Stephane Grabli
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# Date : 04/08/2005
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# Purpose : Assigns to strokes a thickness that depends on the depth discontinuity
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#
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#############################################################################
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#
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# Copyright (C) : Please refer to the COPYRIGHT file distributed
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# with this source distribution.
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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
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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#############################################################################
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from freestyle_init import *
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from logical_operators import *
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from ChainingIterators import *
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from shaders import *
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class pyDepthDiscontinuityThicknessShader(StrokeShader):
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def __init__(self, min, max):
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StrokeShader.__init__(self)
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self.__min = float(min)
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self.__max = float(max)
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self.__func = ZDiscontinuityF0D()
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def getName(self):
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return "pyDepthDiscontinuityThicknessShader"
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def shade(self, stroke):
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it = stroke.strokeVerticesBegin()
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z_min=0.0
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z_max=1.0
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a = (self.__max - self.__min)/(z_max-z_min)
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b = (self.__min*z_max-self.__max*z_min)/(z_max-z_min)
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it = stroke.strokeVerticesBegin()
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while it.isEnd() == 0:
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z = self.__func(it.castToInterface0DIterator())
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thickness = a*z+b
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it.getObject().attribute().setThickness(thickness, thickness)
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it.increment()
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Operators.select(QuantitativeInvisibilityUP1D(0))
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Operators.bidirectionalChain(ChainSilhouetteIterator(), NotUP1D(QuantitativeInvisibilityUP1D(0)))
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shaders_list = [
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SamplingShader(1),
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ConstantThicknessShader(3),
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ConstantColorShader(0.0,0.0,0.0),
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pyDepthDiscontinuityThicknessShader(0.8, 6)
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]
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Operators.create(TrueUP1D(), shaders_list) |