charlesnyiha 1 Posted January 17, 2020 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 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 Share this post Link to post Share on other sites
vinyvince 44 Posted January 21, 2020 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 Share this post Link to post Share on other sites
Librarian 533 Posted January 21, 2020 You can achieve fine results with riches files . https://richardlord.tumblr.com/ Share this post Link to post Share on other sites
charlesnyiha 1 Posted January 21, 2020 (edited) Thanks everyone! 8 minutes ago, Librarian said: You can achieve fine results with riches files . 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 January 21, 2020 by charlesnyiha Share this post Link to post Share on other sites
Librarian 533 Posted January 21, 2020 @charlesnyiha this Share this post Link to post Share on other sites
Librarian 533 Posted January 21, 2020 (edited) Just need to connect randomly but i get it cmm2002.pdf Edited January 22, 2020 by Librarian 6 Share this post Link to post Share on other sites
vinyvince 44 Posted January 22, 2020 Great post and link, thanks for this Share this post Link to post Share on other sites
vinyvince 44 Posted January 22, 2020 15 hours ago, Librarian said: Just need to connect randomly but i get it 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? 2 Share this post Link to post Share on other sites
Librarian 533 Posted January 22, 2020 @vinyvince No ..Just that leaf, fuse(power of 2 grids ), poly offset and sliding points on the line, than just finding those patterns. Share this post Link to post Share on other sites
ftaswin 13 Posted January 22, 2020 @Librarian Great result! I'd loved to know how you use the rules and where it is plugged to Thanks Share this post Link to post Share on other sites
Librarian 533 Posted January 23, 2020 (edited) @charlesnyiha Its this OK Edited January 23, 2020 by Librarian Share this post Link to post Share on other sites
charlesnyiha 1 Posted February 13, 2020 @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. 1 Share this post Link to post Share on other sites
Librarian 533 Posted February 13, 2020 I like it @charlesnyiha Share this post Link to post Share on other sites
charlesnyiha 1 Posted February 14, 2020 @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 Share this post Link to post Share on other sites
Librarian 533 Posted November 24, 2020 @ftaswin Its Just Leaf and this File and Playing with Normals Share this post Link to post Share on other sites
