Knitting in Houdini

[alican]

Hi all,  I had been doing a rnd project on how to generate knitted garments in Houdini lately. And one my inspiration was from a project which was done by Psyop using Fabric engine and the other one is done by my friend Burak Demirci. Here are the links of them.

http://fabricengine.com/case-studies/psyop-part-2/

https://www.artstation.com/artist/burakdemirci

Some people asked to share my hip file and I was going to do it sooner but things were little busy for me. Here it is, I also put some sticky notes to explain the process better, hope it helps. Also this hip file is the identical file of the one that I created this video except the rendering nodes https://vimeo.com/163676773 .I think there are still some things that can be improved and maybe done in a better way. I would love to see people developing this system further. Cheers!

Alican Görgeç

knitRnD.zip

[Saber]

Very cool, thanks for sharing

[fragredocroix]

Some of my coworkers and I were wondering how to do a such tool.
Impressive, thanks for the hip and explainations !

[alican]

Thanks! It would be great to see if you come up with a tool. I hope the hip file helps. Cheers!

[f1480187]

Awesome, thanks! Rare topic. Odforum is always good about examples, but there is only a few themes about production quality modeling networks made in Houdini.

[king4444]

Awesome, thanks for sharing!

[anto187]

this is really nice person, i admire it. sharing something that has drain energy to develop it. thanks alican to support person like me who want make visual fx in my country become more nicer.

big thanks for once more.

[pangzi2015]

Awesome! Thanks for sharing!!!

[Marc]

This is fantastic Alican! Thanks for sharing.

[hankk0722]

Awesome!!!!  Thanks for sharing!!

[subdproxy]

Thanks for sharing for the hip file!

[bretik]

Thanks Its great, I only dont know how to render this out? I can see just one part of cloth...  during "foreach" probably... How You render this please?

BK

[alican]

Hi bretik, I didn't include any of the the rendering or shading nodes. But it is very straightforward. I rendered the whole geometry as curves with width attribute and the render flag is set to the last node of the chain. Some things might change depending on which render engine you want use. That was it basically.  

[bretik]

Thanks alican,

bt when I set render flag on last node (attribwrangle2) I render just small part of geometry. I also ad hair material (Im usiing Mantra) but i think its not get UVs..

[kuimig]

well done~ alican ,thx share!

[alican]

Hey bretik, at some point in the network I just transfer the color from uv's to points. You might need to activate using point colors in the shader to get the colors and also check if the path to the texture is correct in your hip file=) And in your second  image it seems there is only one iteration of the for loop happening. Cheers!

[bretik]

Thanks Alican,

texture works for me as far as I disabled "attribdelete5" (uv)

but still cant get to render whole geometry, just one iteration as you mentioned...

B.

[alican]

I think it is just "Single Pass" option is ticked in the final for each loop. I can see it from the image "Gather: 73" it writes next the node. Just turn off the single pass option and it will generate every iteration but it will take some time around 30 seconds to minute. It might be heavy for your viewport so it is best to put the render flag to that node and visibility to a lighter node for the viewport.

[bretik]

Great, Right, Im blind...

so its working now. but still not get UVs ... 

they are deleted in "attribdelete5" ..but even when I disable it UVs disepeard after node "foreach_begin3" ...

 

[HGBarca]

Thanks for sharing!!!

Edited July 7, 2016 by HGBarca