WildyLoopyThing

JeremieHornus

A simple little Perlin Noise animation thing

# Requires caseman perlin noise: clone and install > https://github.com/caseman/noise
import noise
import random
import math

points = []

size = 500
nthing = 60
baseSizeRatio = .2
ncircle = 5
for e in range(ncircle):  
    n = (e+1)/ncircle
    for i in range(nthing):
        phase = i / nthing
        x = size*.5 - n*baseSizeRatio*size * math.sin(2*math.pi*phase)
        y = size*.9 - .5*(1-n)*size - (1-n)*baseSizeRatio*size - .1*n*baseSizeRatio*size * math.cos(2*math.pi*phase)
        c = (0, 1, .5, .8*(y/size) )
        l = 10+ 10*random.random()
        t = 1
        points.append((x, y, c, l, t))

length = 10
frames = 100

for f in range(frames):
    
    newPage(size, size)
    frameDuration(1/15)
    fill(0) 
    rect(0, 0, size, size) 
    fill(None) 
    
    for p in points:
        strokeWidth(p[4])
        stroke(p[2][0], p[2][1], p[2][2], p[2][3])
        path = BezierPath()
        
        prev_x = p[0]
        prev_y = p[1]  + (p[1]/size)*50*math.sin(noise.pnoise2(.1*p[0]*.1*p[1], .1*abs(frames*.5-f)))
        path.moveTo((prev_x, prev_y))
        for l in range(length):
            dx = int(p[3]*math.sin(noise.pnoise2(.1*p[0], (abs(frames*.5-f)+l)*.1 )))
            dy = -int(p[3]*math.cos(noise.pnoise2(.1*p[1], (abs(frames*.5-f)+l)*.1 )))
            path.lineTo((prev_x, prev_y))
            prev_x += dx
            prev_y += dy
        drawPath(path)
        
saveImage("~/Desktop/wildyloopything.gif")

frederik

nice and hairy!!

ballio

This is really cool! I'd love to try it, but I couldn't figure out how to hook the noise module to drawbot. I got it to install in terminal, but drawbot still doesn't recognize it. Can you help a Python newbie out, please!?

frederik

Currently there are two version of DrawBot available a version with python2.7 and one with python3.6.

DrawBot can only access the external packages with the same python version. So if you have installed the package for py2.7, you should use DrawBotPy2.

The latest DrawBot uses internally python 3.6. If you want drawBot to access external packages, you need to install those packages locally with the same python, otherwise DrawBot will not find them.

I assume you haven't installed python 3.6 yet:

get python3.6 here
in terminal you should be able to install the external package with python3 setup.py install as instructed on https://github.com/caseman/noise

good luck

ballio

@frederik Got it! Installing it on Python3 did the trick. Thanks for the tip.

frederik

well done! achievement unlock!

guidoferreyra

This post is deleted!