Relaxation patch

Feb 16, 2011

Hi guys 🙂

As you may know, recently I have being working on several relaxation
algorithm that prove to be useful for mesh editing to extend functionality of the current smoothing algorithm implemented in Blender. Well, I have made a patch (link to the patch) with the two best relaxation algorithm I have being working on, the Improved Laplacian relaxation, with no shape shrinkage and the HC relaxation with low shape shrinkage.

The feature is fairly easy to use and it has toggable shape border
preservation.

Hope you like this
Farsthary

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36 responses to “Relaxation patch”

SamCameron

February 16, 2011 at 10:14 pm

Thanks mate.

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Moolah

February 16, 2011 at 10:47 pm

Awesome! Thanks a lot, Raul!

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Oliver Villar

February 16, 2011 at 11:04 pm

It’s great!! Thanks a lot for your hard work, Raul! 😉

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loopduplicate

February 16, 2011 at 11:05 pm

I’ve uploaded a build for 64 bit Linux that’s optimzed (Nocona), and also contains all contributed addons as of svn v34918.

http://rowdyrabbit.com/blender/Blender2.56 With Farsthary Relaxation Patch and Contributed Addons.tar.gz

Thank you Farsthary!

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loopduplicate

February 16, 2011 at 11:07 pm

Sorry about the bad link above. This Blog doesn’t like URLs with spaces. Here’s an updated link.

http://rowdyrabbit.com/blender/Blender2.56_With_Farsthary_Relaxation_Patch_and_Contributed_Addons.tar.gz

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macromanjr

February 17, 2011 at 1:16 am

That sounds great! Thank you!

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Blendiac

February 17, 2011 at 1:53 am

Beautiful! Thanks, Farsthary! Great to see the improvements keep rolling in! This will really help keep my meshes sane. I’m looking forward to tryin Loopduplicate’s build and seeing this patch in trunk!

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Max Puliero

February 17, 2011 at 5:26 am

you are king!

we want you on Bmesh Farsthary! 😀

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Mat

February 17, 2011 at 7:27 am

TY man, this is really great!

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zeauro

February 17, 2011 at 2:09 pm

Relaxation is really impressive.
Preserve border option is really cool.

Will you submit patch to trunk, soon or will you still improve it during Unlimited Clay development ?

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Peter

February 17, 2011 at 10:40 pm

That is what I expected from some time now! but can you tell to us, noncoders how to install a patch? or maybe give a link to a tutorial or document that explains that?!

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1. farsthary
  
  February 18, 2011 at 3:22 pm
  
  In windows install TortoiseSVN, rigth click on the source forlder and select apply patch, that easy, but more easy is just download a precompiled build from Graphicall 🙂
  
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kilikoro

February 18, 2011 at 3:52 pm

Hi, if I understand you said that UC stay the same but you just improve some relaxation codes that are more suitable with UC.
If someone apply the patch and the old UC, would we see big difference with the original UC??
sorry for my english

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1. farsthary
  
  February 18, 2011 at 10:04 pm
  
  No, they are no needed for UC, a basic relaxation will work, they will be more suited for mesh tools 🙂
  
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Tweets that mention Relaxation patch « Tinker Code — Topsy.com

February 19, 2011 at 4:37 am

[…] This post was mentioned on Twitter by ynotgo Travel Desk, 八田和磨. 八田和磨 said: 明日コード読む：　RT @tksg8086 Farstharyさんがmesh relaxationのパッチを公開してる。明日試す – https://farsthary.wordpress.com/2011/02/16/relaxation-patch/ […]

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kike sanz

February 20, 2011 at 2:18 am

hey raul exactly what does uc mean 2 you?
is uc just dynamic tessellation or will it be like the tessellation in nvidia demos.
in the nvidia demos when an object is far away object will be have simple geometry
but as camera gets close up to a house for example you get complex geometry.
i have not experience using sculptris,3dcoat like software but will uc let me create
extreme detailed model but apply topology to use for animation without worrying aboutbad deformations because of the triangles.
sorry if my question does not have anything to due with post.
keep up the good work farsthary.

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1. FreeMind
  
  February 20, 2011 at 12:48 pm
  
  UC is nothing more but an automatic topology editor. It edits the topology while you sculpt, so you never run out of polygons for more details. It has nothing to do with the distance from the camera.
  try out sculptris, it’s free. You will see exactly what it does.
  
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2. vitos1k
  
  February 20, 2011 at 2:05 pm
  
  this feature called dynamic subdivision for displacement and it used in Renderman compilant renders like Aqsis and 3Delight. But you can’t displace mesh without displace information, so actualy you should define displacement information with you shader. UC gives you ability to model your mesh with as much detail as you want without bothering subdiv levels
  
  vitos1k
  
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vitos1k

February 20, 2011 at 2:07 pm

<—————–
Farsthary, are this icons(avatars) procedural?

very clever and nice )

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kike sanz

February 23, 2011 at 7:38 am

tried out sculptris its incredible now i cant wait for uc in blender.
will uc use any of that voxel stuff? when using sculptris even at a couple of million triangles i felt almost no lag time.

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mobile samsung

May 2, 2011 at 4:40 am

The nicest of all things is relaxation

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Peter

May 4, 2011 at 4:47 pm

Hey, Farsthary, can you update the Laplacian patch for the new builds, it doesnt seem to work with them right now, seemed some files in the Blender changed paths … now there is a build with the ability to sculpt on shapekeys and the mirror and subdiv modifiers are enabled again in sculpt mode, so the only operator we need for seamless character/shapekey modeling and sculpting is your great laplacian smooth algoritm! I really cant live without it nowadays! Thank you for your great work.

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Psy-Fi

August 5, 2011 at 10:18 pm

Hi Raul, working on relax brushes for uvs for blender right now (GSOC 2011 onion branch) and I will use your code (with attribution of course 🙂 ). One thing I noticed: line 101 you need not zero out the Temp_VertexData variables, since you allocated the memory with calloc. Other stuff: apparently mirror modifier detection will kick in for any position of the mirror modifier within the stack, which may not work(Or it may work with derived mesh vert tagging using original vertex custom data layer for the check and perhaps some non-constructive modifiers pre-mirror). That’s all for now, thank you for your great work 🙂

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1. Farsthary
  
  August 6, 2011 at 7:05 pm
  
  Thanks a lot! Is an honour to me 🙂
  Cheers
  
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  1. Peter
    
    October 19, 2011 at 6:32 pm
    
    omg xi http://www.visori.info/uploads/dl.php?usr745album13-Photo80.JPG
    
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  2. Peter
    
    December 5, 2011 at 1:27 pm
    
    OH, I am so sorry about the posts I made earlier – it was a virus, so please, delete it! it was posted automatically so I wasnt able to control it! I wanted to ask you to update your laplacian algorithm for the bat3a builds(from graphicall), please! I am currently making a special model system for Blender that is awesome, and, if everything goes well I will post it for a free download in the new ears eve! But my system can be greatly benefitted from your smooth algorithm, in fact, it is the only missing function that actually is a superior times saver when it comes to character modeling
    
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Peter

October 19, 2011 at 6:37 pm

haha tg http://www.visori.info/uploads/dl.php?usr547album11-Photo63.JPG

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