# New decimation methods added: quadric and fast quadric

**URL:** https://discourse.slicer.org/t/new-decimation-methods-added-quadric-and-fast-quadric/12729
**Category:** Support
**Tags:** feature
**Created:** [July 25, 2020, 3:43am UTC](https://discourse.slicer.org/t/new-decimation-methods-added-quadric-and-fast-quadric/12729 "2020-07-25T03:43:10Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [July 25, 2020, 3:43am UTC](https://discourse.slicer.org/t/new-decimation-methods-added-quadric-and-fast-quadric/12729/1 "2020-07-25T03:43:10Z")

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Recently new surface simplification (reduction of ) methods were added to Decimation module in Slicer. Quadric and its approximate but faster version, FastQuadric methods provide much higher quality meshes than the previous DecimatePro method.

Example:

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/9/49b6251df3e6d4a887c11b4658e157cdcfbc2115.jpeg)

The feature is available in recent Slicer Preview Releases.