Open Project: Voronoi

Started by Volker Harun, October 24, 2007, 06:03:08 AM

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Volker Harun

I would like to open a new Open Project: Voronoi

It has been said that Voronois could be used to create good rocks. I haven't yet.
But there are quite some amazing things to do.

So go for those, put a Babelfish into your ear and try to understand Voronis, so we all might have some insight ,-)

For a startoff I have attached a Clip, a Node-View and a Preview.

Volker Harun Bruhn

P.S.: One thing for sure, Voronoi are much slower to render than Perlin

Will

http://babelfish.altavista.com/

a Babelfish is available here.  ;)

interesting project, I'll take a look but probably won't get very far.
The world is round... so you have to use spherical projection.

Volker Harun

Okay ... it is getting difficult.

The Voronoi is scaled antiproportional to the distance to the origin.

Sitting close to 0|20|0 gives you large voronois, i.e. 10.000|20|10.000 is giving small voronois.
So first of all we need a function that disables this.

Any ideas?

cyphyr

Off the top of my addled head, could you use a transform node to move the origin to your new desired location?
Just a maybe...
Richard
www.richardfraservfx.com
https://www.facebook.com/RichardFraserVFX/
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Ryzen 9 5950X OC@4Ghz, 64Gb (TG4 benchmark 4:13)

Volker Harun

Hi Richard, this is a very good idea. And it would make it possible to adjust the appearance to your needs.

One drawback would be an animation, another one a full planetary landscape ,-)

Volker Harun

Okay,

a workaround that needs finetuning:
The Constant scalar that is connected with the Voronois' scales gets multiplied with the position.
See attached Node-image.

It is not perfect, yet.

Volker

Volker Harun

Well,

I give up. The Voroni function seems to be useless for now. It is impossible for me to get the default heightfield area filled with even sized voronoi.

Maybe some time later.

mhaze

Here's a first go hope someone can use

Volker Harun


j meyer

Most likely i don't understand what you are after,but if it's a main
goal to get evenly sized cells one could generate an image based
terrain with a hexagonal grid,for instance,and go from there.
Just a thought of a mathematical stoopey :).

Volker Harun

I do not know what I am after, either ... so I try to be lucky again.

Or to put it in other words, I would like to see what can be done with the voronois - after that I might know what I am after.

An image map does work for low scale images - one thing that I am sure with is that the result should fit planetary scale ,-)

cyphyr

Wow this is great it looks very muck like the Giants Causeway.http://www.risingroadtours.com/toursaints.htm
Richard
www.richardfraservfx.com
https://www.facebook.com/RichardFraserVFX/
/|\

Ryzen 9 5950X OC@4Ghz, 64Gb (TG4 benchmark 4:13)

dhavalmistry

want this is file sharing section???
"His blood-terragen level is 99.99%...he is definitely drunk on Terragen!"

Volker Harun

I have no finished file to share - it is just a very open project ,-)

Volker Harun

Restarting with the Voronoi-Vector noises which look promising.