Blender Addon – Volume Preserving Smoothing

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Description

Tutorial To Install Blender Addon Using Rar File

Addon for Blender 2.93 and 3.0 – smoothing mesh surfaces without volume loss. Since ver 2.3 update there is also ‘Volume smooth brush’ tool (has geometry sliding option) available in edit mode.

Video guide – bit old – there was no smooth brush yet.

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 operator (works on whole mesh or selection): open mesh context menu with W key in mesh edit mode, then select Mesh Smoothing visible at the very bottom, and pick mode:

  • Inflate smoothing – good for round surfaces
  • Laplacian HC smoothing – fast but sometimes give artifacts
  • Volume smoothing – slower but best quality

To use smooth brush: open left tools sidebar (T – key in 3d view), enable ‘Volume smooth tool’ icon.

Features:

  • smooth mesh while maintaining main object shape (operator and brush)
  • border mesh vertices will slide along border edges, this prevents shrinking of mesh outline
  • smooth brush support pulling/sliding of geometry along surface of mesh
  • X axis symmetry is supported
  • works with shape-keys
  • you have ability to define sliding rail edges (edges marked as sharp) – they constrain sliding of geometry
  • three edge tension methods (Uniform, Proportional to edge length, Inverse to edge length)
  • optimized with NUMPY

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

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 2.3 (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

Update 2.5 (blender 2.93) (28.01.2020):

  • added option for pulling/sliding geometry
  • exposed more parameters in smooth tool – bacface mask, locking border, smoothing face proportions

Update 2.5.1 (02.07.2021)

  •  tweak behavior of freeze selection border – in brush mode

Update 2.5.2 (17.01.2022)

  • nicer brush outline for smooth tool
  • fixed smoothing behavior when brush moved outside of mesh
  • fixed smooth brush not working in some cases

Update 2.5.3 (16.05.2022)

  • fix brush outline for scaled objects
  • added auto-updater in add-on preferences

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