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Hello,

I've been trying to make a procedural system that generates closed leaf venation patterns, based on this paper: http://algorithmicbotany.org/papers/venation.sig2005.pdf

images?q=tbn:ANd9GcTi0pI7dOUjSfNa35txmSe

 

An example of what I'm trying to achieve.


I thought I would try to extend Entagma's space colonization algorithm, since all leaf venation really is is an extension of space colonization. And I've been banging my head against this wall for months, to the point of desperation. I need help. Attached is the HIP file, if anyone wants to look at it. Has anyone of you successfully implemented this before, and if so...please help! What am I doing wrong, any ideas, any tips, etc.

Thank you so much!

closed leaf venation.hiplc

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This is an interesting challenge which i have seen something yet posted here . I dont' have access to houdini now, but here's a good starting point for you.

Looking forward this thread

 

https://www.academia.edu/25999349/Modeling_and_visualization_of_leaf_venation_patterns

 

 

 
________________________________________________________________

Vincent Thomas   (VFX and Art since 1998)
Senior Env artist & Lighting & MattePainter & Creative Concepts

 http://fr.linkedin.com/in/vincentthomas

* Available : Febrary 2020

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Thanks everyone!
 

8 minutes ago, Librarian said:

You can achieve fine results with riches files :wub:.

https://richardlord.tumblr.com/

Thanks a lot for the link! This guy's work is amazing!

The main issue though is achieving specifically the closed venation patterns. The open ones I've found fairly straightforward, personally. But I haven't found anyone online who's implemented the closed ones before in Houdini.

Edited by charlesnyiha

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Just need to connect randomly but i get it:wub:

list8_0077.jpg

14256.gif

1425.gif

cmm2002.pdf

 

liyst1402_0077.jpg

ptr1147410_0077.jpg

Edited by Librarian
  • Like 5

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15 hours ago, Librarian said:

Just need to connect randomly but i get it:wub:

list8_0077.jpg

14256.gif

1425.gif

cmm2002.pdf

 

Nice results here you have. Still not in front of Houdini to check, are you using the same setup that is richard using here?

  • Like 1

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@vinyvince No ..Just that leaf, fuse(power of 2 grids ), poly offset and sliding points on the line, than just finding those patterns.:wub:

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@Librarian Sorry for taking ages to reply. I've been working on it based on what you sent here and also your amazing 'nature fun' thread. Here's what I came up with.
It's not what I had originally intended but I decided to try something different so that I could move forward.

 

 

002.jpg

001.jpg

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@Librarian Thanks! Although after looking at it the next morning it feels more like a feather than a leaf. I think I'll try what you did and see if I can incorporate L-systems into the setup

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