Forums Houdini Lounge How to scale linearly with Sop Solver?

How to scale linearly with Sop Solver?

   3796   6   1
User Avatar
RodTebisx
Member
126 posts
Joined: Feb. 2015
Offline
 
Hello guys!

I have a math problem, i need scale circles with sop solver, but i need scales linearly, but for each iteraction (frame) scaling acts exponentially.

i tried use some formulation on transform inside sop solver with “log()” but with no sucess…

what i need is circles scaling equidistantly, so i need some trick to scale linearly.
and yes, need reside inside a sop solver.

any ideas?

attached a image showing above the problem, and below (manually made) what i need output…

thanks in advance.

Attachments:
SOP_Solver_01.png (32.4 KB)

Rod Tebisx | Senior Creature FX TD | London
 Report
User Avatar
vusta
Member
555 posts
Joined: Feb. 2017
Offline
 
posted solution on odforce.
 Report
User Avatar
RodTebisx
Member
126 posts
Joined: Feb. 2015
Offline
 
vusta
posted solution on odforce.
thanks! but for my user case i can't use polyextrude inset, i really need scale linearly the incoming geometry… (a oscillating waveform circle)
Rod Tebisx | Senior Creature FX TD | London
 Report
User Avatar
mestela
Member
1853 posts
Joined: May 2006
Offline
 
Like this?

Attachments:
solver_circle_linear_scale.hip (77.6 KB)
circle_scale_linaer.gif (127.2 KB)

http://www.tokeru.com/cgwiki [www.tokeru.com]
https://www.patreon.com/mattestela [www.patreon.com]
 Report
User Avatar
jsmack
Member
8177 posts
Joined: Sept. 2011
Offline
 
mestela
Like this?
that's practically cheating
 Report
User Avatar
RodTebisx
Member
126 posts
Joined: Feb. 2015
Offline
 
mestela
Like this?
exacly!!!

very simple! now understood the node location makes all difference!!
wow. perfect!

thanks man!
Rod Tebisx | Senior Creature FX TD | London
 Report
User Avatar
anon_user_37409885
Member
4189 posts
Joined: June 2012
Offline
 
with loops fwiw.

Attachments:
CircleLoops.hiplc (75.2 KB)

 Report
  • Quick Links