panee Posted December 22, 2023 Share Posted December 22, 2023 HI folks I'm trying to build a feather (yes I know there are proper node in houdini 20, but can't affort it now) I have created a line with other perpendicular line I put them together using vellum stich point but at the moment the simulation begins the perpendicular lines begin to rotate (as you can see in the video below) I would like to know if there is a way to control that rotation Thanks in advantage untitled.hip - Houdini FX 19.5.368 - Py3.9 2023-12-22 11-31-28.mp4 Quote Link to comment Share on other sites More sharing options...
hannes603 Posted December 22, 2023 Share Posted December 22, 2023 vellumfeather.mp4 vellumfeather.hip Quote Link to comment Share on other sites More sharing options...
panee Posted December 26, 2023 Author Share Posted December 26, 2023 (edited) hi hannes603 thanks for your help I tried your method with my model but it didn`t work. the kind of father I want to make is like the picture below the red part should be very hard and the green ones should be flexible that's why I asked for a way to lock the rotation of the contraints do you know any way to do that? thanks in advantage E. Edited December 26, 2023 by panee Quote Link to comment Share on other sites More sharing options...
Librarian Posted December 26, 2023 Share Posted December 26, 2023 @panee Can you please post your File ..I just want to check Something PF.hiplc Quote Link to comment Share on other sites More sharing options...
panee Posted December 26, 2023 Author Share Posted December 26, 2023 18 minutes ago, Librarian said: @panee Can you please post your File ..I just want to check Something PF.hiplc 125.2 kB · 1 download Hi here the file you asked for thanks for your help feather.hip Quote Link to comment Share on other sites More sharing options...
hannes603 Posted December 26, 2023 Share Posted December 26, 2023 Youuse the attatch to Geo constrain , and use stiffness Attribute. Quote Link to comment Share on other sites More sharing options...
panee Posted December 26, 2023 Author Share Posted December 26, 2023 20 minutes ago, hannes603 said: Youuse the attatch to Geo constrain , and use stiffness Attribute. points of the geometry are attached to the geo target and they dont follow the animation, 'cause the target geo is outside of the sim and it's stopped. that's why I used stich to points. Quote Link to comment Share on other sites More sharing options...
hannes603 Posted December 26, 2023 Share Posted December 26, 2023 You can Put it to calculate each frame . Quote Link to comment Share on other sites More sharing options...
panee Posted December 26, 2023 Author Share Posted December 26, 2023 1 hour ago, hannes603 said: You can Put it to calculate each frame . How can I do that? Quote Link to comment Share on other sites More sharing options...
hannes603 Posted January 8 Share Posted January 8 (edited) vellumfeather.mp4 vellum_feather_simple2.hip Edited January 8 by hannes603 Quote Link to comment Share on other sites More sharing options...
panee Posted January 23 Author Share Posted January 23 On 1/8/2024 at 11:48 AM, hannes603 said: vellumfeather.mp4 1.33 MB · 0 downloads vellum_feather_simple2.hip 705.54 kB · 5 downloads great!!! thanks man Quote Link to comment Share on other sites More sharing options...
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