Mandelbulb like sub-divisions possible?

Replies to This Discussion

Permalink Reply by Nick Tyrer on April 30, 2011 at 7:17am

To create a fractal you need to perform the same operation many times over, to the 'nth' generation/iteration. If you wanted to create fractals in grasshopper you would either need to use V.B.script to create a loop, or copy and paste the components to imitate a loop

 

You can get some of the basic fractal definitions from the mcneel website:

http://wiki.mcneel.com/labs/grasshoppergallery

 

I only have a very basic knowledge of fractals, so i apologise if i cant be anymore help.

 

Also without trying to sound pessimistic, i dont belive grasshopper is the right tool to create those columns or the mandelbulb

Permalink Reply by Gwyll on April 30, 2011 at 7:08pm

Nick is probably right, grasshopper isn't the best tool to do this at the moment. It might be a bit sacrilegious to post this on the grasshopper forum, but take a look at processing and toxiclibs. http://toxiclibs.org/ There are some fantastic mesh classes there.

Permalink Reply by xirja on May 1, 2011 at 9:26pm

Found Fractal_Curves and Sierpinski at the grasshoppergallery to be likely options for getting something going, thanks Nick.  I need a refresher course on the difference between recursion and iteration among other things I guess.

 

I'm hopeful that you use "at the moment" Gwyll, nice.

 

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Permalink Reply by Nick Tyrer on May 2, 2011 at 5:20am

I messed around with some fractals a while ago, nothing major just killing some time. I just uploaded some of it to my blog if its any help

 

http://tyrertecture.tumblr.com/

and ive attached the definitions to the 'cheating' method of creating fractals in grasshopper. I tried the Koch Snowflake and Sierpinski Triangle

 

Attachments:

• koch snowflake.ghx, 785 KB
• SIERPINSKI GH.ghx, 376 KB

Permalink Reply by xirja on May 9, 2011 at 5:14am

Yeah, the Koch curve might be helpful to do this.  I ended up using a lofted Z axis modulated
spirograph rose curve to make this as a first attempt in Grasshopper.  Something similar to M.
Hansmeyer's columns perhaps:

Permalink Reply by Nick Tyrer on May 9, 2011 at 5:41pm

Seriously dude, that is pretty sweet. can definitly see the resemblance to Hansmeyers.

 

How memory hungry was it? Do you think you will be able to up the ante of complexity?

Permalink Reply by xirja on May 10, 2011 at 6:20am

Still a little specialized to share the definition at this point, but basically it is what Nick pointed to: Spirograph Rose Curves 1 plus varying parameters of the curve as a function of the z axis and then lofting with a new profile.

 

The complexity does need a serious bump up.  Fractal waffling might be a good start forward.  I'll post any improvement if I find a way.  Just wanted to show that Grasshopper IS capable of this at least.

Permalink Reply by RWNB on May 11, 2011 at 2:09am

many thanks, will look at it.

Permalink Reply by Jay on February 10, 2017 at 5:13pm

Can you share the definition please? No matter how specialized I would like to take a look. 

Permalink Reply by Kim hauer on February 11, 2017 at 5:04pm

If your interested in producing Fractals, I would not bother with the Rhino/GH combination.

My i7 with 32GB ram might still be trying to calculate an image like this a year from now.

GH is not designed to directly apply Fractal equations.

Permalink Reply by Abel Geressu on September 25, 2019 at 3:38am

Kim hauer when it comes to fractal in 3d modelling application like rhino it depends on the number of iteration in you definition .while is much more easier in  shader based renderer like mandlebulb that  render just to your  current level in  the screen. That said i found fractal plugin a good starting point but  chimpanzee for grasshopper  has everything you need for different type of fractals from iterative, complex (mandlebulb and julia sets) to random fractals.