Edit product


Volume Preserving Smoothing

Addon for Blender  2.8 and 2.9 for smoothing mesh surfaces without too much of volume loss.

Video guide

Volume Preserving Smoothing  takes also into account sharp edges - they will be treated as rails for verts to slide on. This can help to maintain main shapes of smoothed object.

To access the smoothing menu use W key in mesh edit mode -> Mesh Smoothing:

  • Inflate smoothing
  • Laplacian HC smoothing
  • Volume smoothing

Additional parameters are available after executing operator with F6 hotkey.

Since 2.3 update here is now smoothing brush Tool located at the bottom of left Toolbar (N).

To make edge into rail edge - just mark edge loop as sharp. Now verts belonging to this edge,  will move only along edge.


  • smooth mesh while maintaining main object shape
  • border mesh vertices will slide along border edges, without shrinking (or they can be frozen)
  • center vertices wont move away from symmetry X axis line
  • works with shapekeys
  • ability to define sliding rail edges (marked as sharp) - they will limit sliding of geometry when smoothing mesh
  • three edge tension methods (Uniform, Proportional to edge length, Inverse to edge length)
  • optimized with NUMPY

Update 1.1 + 1.2 + 1.3:

* improved speed around 60%, plus bug fix.

Update 1.4:

  • you can increase iterations amount above 20 (by manually entering bigger value)

Update 2.0 (08.12.2018):

  • Added support for blender 2.8 in version 2.0 of addon.

Update 2.1 (blender 2.8) (14.03.2019):

  • Support for symmetrical smoothing when using 'mirror' option in mesh edit mode.
  • bugfixes for latest daily blender builds

Update 2.2 (blender 2.8) (27.03.2019):

  • bugfixes for latest daily blender builds

Update 2.3 (blender 2.8) (31.12.2019):

  • fix verts on symmetry not being smoothed correctly
  • added smooth brush for mesh edit mode

Update 2.4 (blender 2.8) (03.01.2020):

  • better algorithm for brush size adjusting from F key
  • fix bad smoothing radius influence when object has no scale applied

You've purchased this product

See it in your library

View in Library
Sorry, this item is not available in your location.
Sold out, please go back and pick another option.

Name a fair price:

0 ratings


Volume Preserving Smoothing

Enter your info to complete your purchase


···· ···· ···· 4242
Test card



Use a different card?


pp paypal

or pay with

We do not keep any of your sensitive credit card information on file with us unless you ask us to after this purchase is complete.

or pay with

You'll be charged US$7.

Your purchase was successful!

We charged your card and sent you a receipt

    Gumroad Library

    Download from the App Store or text yourself a link to the app

    Good news! Since you already have a Gumroad account, it's also been added to your library.

    Powered by Gumroad