class pyPerlinNoise2DShader(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, seed=-1):
StrokeShader.__init__(self)
self.__noise = Noise(seed)
self.__freq = freq
self.__amp = amp
self.__oct = oct
def shade(self, stroke):
for svert in stroke:
nres = self.__noise.turbulence2(svert.point_2d, self.__freq, self.__amp, self.__oct)
svert.point = (svert.projected_x + nres, svert.projected_y + nres)
stroke.update_length()
class pyPerlinNoise2DShader(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, seed=-1):
StrokeShader.__init__(self)
self.__noise = Noise(seed)
self.__freq = freq
self.__amp = amp
self.__oct = oct
def shade(self, stroke):
for svert in stroke:
nres = self.__noise.turbulence2(svert.point_2d, self.__freq, self.__amp, self.__oct)
svert.point = (svert.projected_x + nres, svert.projected_y + nres)
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 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()
