Created
October 21, 2022 08:18
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Lorenz Attractor in Blender
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# as explained by QuantitativeBytes | |
# https://youtu.be/iDHWyt1v4T8 | |
import bpy | |
class Lorenz: | |
def __init__(self, sceneRef, objName, color, initX, initY, initZ): | |
self.X, self.Y, self.Z = initX, initY, initZ | |
self.dt = 0.005 | |
self.a, self.b, self.c = 10, 28, 8/3 | |
self.color = color | |
self.objName = objName | |
self.sceneRef = sceneRef | |
def Step(self): | |
self.X = self.X + (self.dt * self.a * (self.Y - self.X)) | |
self.Y = self.Y + (self.dt * (self.X * (self.b - self.Z) - self.Y)) | |
self.Z = self.Z + (self.dt * (self.X * self.Y - self.c * self.Z)) | |
def Generate(self): | |
numPoints = 10000 | |
self.curve = bpy.data.curves.new("LorenzCurve", type='CURVE') | |
self.curve.dimensions = '3D' | |
self.curve.bevel_depth = 0.1 | |
attractorPoly = self.curve.splines.new('POLY') | |
attractorPoly.points.add(numPoints - 1) | |
for i in range(0, numPoints): | |
attractorPoly.points[i].co = (self.X, self.Y, self.Z, 1) | |
self.Step() | |
self.body = bpy.data.objects.new('curve', self.curve) | |
self.body.name = self.objName | |
self.sceneRef.collection.objects.link(self.body) | |
scene = bpy.context.scene | |
attractor1 = Lorenz(scene, "attractor1", (0.4, 0.1, 0.1, 1.0), 0.1,0.0,0.0) | |
attractor1.Generate() |
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