Houdini procedural tree generator

[dD_ 32]

Hi, i'm working on procedural tree generator in houdini's environment. It's based on space colonisation algorithm, but in next version curve-based pipeline is will be include too, because SCA produces an unpredictable results sometimes.

Implemented by Vex, Python and standard nodes.

- Correct growth based on colonisation algorisms
- Module system for any kinds of vegetation
- Fast source and additional modules based only on vex and cvex
- Auto correction and smooth for geometry

Some days ago i make first demo video:

Here i will post some further steps in a workflow, hope for your advices and feedback

  Edited June 2, 2014 by NmN.Zeke

[ryew 46]

Nice work! I'll be curious to hear how you went about doing that, it looks great

[Mind Thrower 19]

Very nice, man! This is very demanded thing.

[paxsonsa 27]

Really Cool dude! Can wait to see how you did it!

[dD_ 32]

So, shrub-demo looks good, but, it has a lot of small and big bugs and they more noticeable in big tree case(next demo will be about growing trees). On some of them I'm currently working now.
- non-uniform leaf scatter, it produces overloaded area and defect in small branches
- post correction module works good, except that cases, when he try to fix more then 90 degrees turn. When he faces with area like that, he crushes all branch, totally restructuring it. So he work very slow, and make some parts of crown too curly
- Shading\lightning, in demo-video, it looks a really bad, in next demo i need good leaf and bark shaders and improved light.

- First problem was solved today solution was very simple - use resample sop instead scatter sop. May be in need some tweaks, because we still have overloaded areas, but small brunches look good, you can see it on screen
- I spend some time examining a correction module, add one small tweak - now he try to lift up hanging brunches, but i have no a simple solution, so continue to work on.
- Improve light setup(using hdri), fix uv on trunk

 

Illustrations:

Before tweaks
After tweaks

 

Edited June 6, 2014 by NmN.Zeke

[dD_ 32]

New step of work and new test render. Rebuild everything, make new leaf shader from scratch and a lot of test and tweaks with sca source setup. Full list of changes and improvements will publicate with a new

demo-video.

 

Edited June 26, 2014 by NmN.Zeke

[dD_ 32]

New demo video - creating small tree:

Edited July 11, 2014 by NmN.Zeke

[Skybar 352]

Great stuff!

[pelos 6]

you should show how the otl works, 

the trees have a nice look =)

[kgmcnamara 38]

Very cool!

[dD_ 32]

New demo, all new features lists in first frame. I'll post sources and setups from demo video in the near future. Edited December 15, 2014 by NmN.Zeke

[Mandrake0 59]

nice work.... enjoy the x-mas and don't drink too much vodka we need you next year!!! :-)

[dulo 12]

Very nice indeed !!

You pan on building an orbolt asset ?

[dD_ 32]

I promised, that i will publish some source files and here they are. Inside you can find some network from demovideo, from pre work to render. All assets are unlocked(i used its for git), don't pay attention to that. Happy x-mas.

Tree_generator_demoscene_unlocked.hipnc

[paxsonsa 27]

Thanks Dmitry! Can't wait to play with this!

[Pazuzu 283]

Thank you very much for the example file! Awesome Setup!!

[shareu 8]

Thank you very much !!! I really appreciate

[CrazyDraisey 2]

Thanks for sharing Dmitry!

[watermaid 1]

I know its 2018 now, but this is some nice stuff!

[JimmyChao90196 0]

And now it's 2021, it's still an awesome example!!