Clean Intersecting Paths

Forums Houdini Indie and Apprentice Clean Intersecting Paths

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vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

Feb. 12, 2014 8:05 p.m.

Is there a way to create clean intersection path from multiple curves?

I have tried many different things but I'm running out of ideas.
Also tried some VDB solutions but but when converting back to poly's I cant get clean geometry.. :'(

Please check the attached file and thanks in advance!

Attachments:
intersections.hipnc (65.9 KB)


vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

Feb. 13, 2014 4:40 p.m.

I've got a solution now.. but I'm not sure this is the best solution.
Please check my file..

Any feedback is welcome!

Attachments:
intersections_cleanish.hipnc (74.9 KB)


freaq: Member; 300 posts; Joined: March 2011; Offline

Feb. 14, 2014 4:55 p.m.

here is a quick test:
hope it helps

edit: another file with more controls
refining faster and smoothing of angles if desired.

version 3 with sidewalks and stuff

Attachments:
roadtest_metaball2.hip (132.4 KB)
roads screenshot.png (284.0 KB)


vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

Feb. 14, 2014 5:25 p.m.

Wow mindblowing techniques!
Thank you very much


vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

Feb. 14, 2014 7:29 p.m.

I found another way for clean intersections, it also works with very complex shapes!

Attachments:
intersections_new.hipnc (152.6 KB)


vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

Feb. 14, 2014 9:09 p.m.

I've also added some procedural uv's for the road, now the last thing to do is generate useable uv's for the crossings.. :

Attachments:
clean_uv's.png (243.1 KB)


Sadjad Rabiee: Member; 1391 posts; Joined: Dec. 2010; Offline

Feb. 16, 2014 1:59 p.m.

That's Clever Way for Intersection

I saw some Tutorials about “Procedural Roads” from cmiVFX ,Maybe you can find some different Tips on it :?

https://www.youtube.com/c/sadjadrabiee [www.youtube.com]
Rabiee.Sadjad@Gmail.Com


vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

Feb. 16, 2014 2:53 p.m.

I have better intersections now, now its indestructable!

Look at the file..

Attachments:
intersections_01.hipnc (114.6 KB)


vbk!!!: Member; 383 posts; Joined:; Offline

May 27, 2014 6:33 a.m.

Very nice technic !

I wonder if you would like to share your method to get propet UV. It seems it's not implement in youre last hip file.

thx aniway for the stuff you made Johnny. it rocks.

http://vimeo.com/vbkstudio [vimeo.com]


vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

May 27, 2014 3:52 p.m.

Hi there, thanks for your response.
Also a fan of your work btw!

Anyways I've got the file on my harddisk on school, I will upload it tomorrow as soon as I arrive at school!


vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

Aug. 30, 2014 9:41 a.m.

Hey man, sorry for my extremely late response!
I had been very busy lately..

Anyways, I had a few days off so I decided to tackle this issue once more and it is a but more rock solid now! Still not perfect, dont do funny weird stuff.. :wink:

I've also supplied some texxtures to this system.

The file is a bit messy and very complex so beware..

Attachments:
intersection.zip (397.0 KB)


vbk!!!: Member; 383 posts; Joined:; Offline

Sept. 1, 2014 4:03 a.m.

Thanks a lot Johnny !
For the moment, I have a lot of work but I will check your hip ASAP.

http://vimeo.com/vbkstudio [vimeo.com]


vleermeneer: Member; 245 posts; Joined: Sept. 2011; Offline

Sept. 1, 2014 3:17 p.m.

Cool man, take your time!

File is not going anywhere..


jephyr: Member; 2 posts; Joined: Sept. 2015; Offline

April 2, 2017 5:19 a.m.

Hello!

Tried to open this file for research in H16 Indie. But alas.. It crashes.


neil_math_comp: Member; 1743 posts; Joined: March 2012; Offline

April 3, 2017 6:05 p.m.

George Bigiakis
Tried to open this file for research in H16 Indie. But alas.. It crashes.

Thanks for pointing this out! I think I've fixed the crash for tomorrow's build, Houdini 16.0.568, though I'm not 100% sure. It crashed for me before I fixed a bug that could have crashed in the Curvesect SOP, and it doesn't seem to crash for me now, so I'm hoping that was the bug.

Writing code for fun and profit since... 2005? Wow, I'm getting old.
https://www.youtube.com/channel/UC_HFmdvpe9U2G3OMNViKMEQ [www.youtube.com]


jephyr: Member; 2 posts; Joined: Sept. 2015; Offline

April 8, 2017 12:28 p.m.

ndickson
Thanks for pointing this out! I think I've fixed the crash for tomorrow's build, Houdini 16.0.568, though I'm not 100% sure. It crashed for me before I fixed a bug that could have crashed in the Curvesect SOP, and it doesn't seem to crash for me now, so I'm hoping that was the bug.

OK! I tried loading it in 16.0.571 and it works! Whatever you did, a big thanks! Was stuck for ideas on this one in a looong time, still a complete newbie

Now I can hopefully get my river geometry far better for the flow maps


sajadalavi: Member; 30 posts; Joined: May 2017; Offline

March 6, 2018 3 p.m.

jephyr
Hello!

Tried to open this file for research in H16 Indie. But alas.. It crashes.

hello vleermeneer
I use this project thank you very much.

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