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Volume Preserving Smoothing

Addon for Blender  2.8 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.

Features:

  • 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)
  • 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

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