# How to smooth data (and not the mesh)?

**URL:** https://discourse.paraview.org/t/how-to-smooth-data-and-not-the-mesh/8644
**Category:** ParaView Support
**Created:** [December 17, 2021, 10:11am UTC](https://discourse.paraview.org/t/how-to-smooth-data-and-not-the-mesh/8644 "2021-12-17T10:11:58Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![bmxam](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/b/b38774/32.png) [@bmxam](https://discourse.paraview.org/u/bmxam)
#### Post date: [December 17, 2021, 10:11am UTC](https://discourse.paraview.org/t/how-to-smooth-data-and-not-the-mesh/8644/1 "2021-12-17T10:11:58Z")

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Hi everyone,

I have a surfacic mesh with a scalar field (let’s say a temperature). I would like to apply some smoothing procedure on the temperature field, leaving the mesh unchanged. For instance a Laplacian smoothing.

I have looked at the `Smooth` filter but it is not clear to me if it smooths the mesh or the data. Furthermore, it has no effect on my case (even with big values for `Number of convergence`).

Is this possible with Paraview?

Thank you

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### Author: ![nicolas.vuaille](https://discourse.paraview.org/user_avatar/discourse.paraview.org/nicolas.vuaille/32/5873_2.png) [@nicolas.vuaille](https://discourse.paraview.org/u/nicolas.vuaille)
#### Post date: [December 21, 2021, 9:01am UTC](https://discourse.paraview.org/t/how-to-smooth-data-and-not-the-mesh/8644/2 "2021-12-21T09:01:50Z")

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With the TTK plugin that is shipped in the nightly and in the release starting to the really soon to come ParaView 5.10, you can use the `TTKScalarFieldSmoother` filter

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### Author: ![bmxam](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/b/b38774/32.png) [@bmxam](https://discourse.paraview.org/u/bmxam)
#### Post date: [December 21, 2021, 10:21am UTC](https://discourse.paraview.org/t/how-to-smooth-data-and-not-the-mesh/8644/3 "2021-12-21T10:21:06Z")

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Thank you Nicolas, I’ll try as soon as the pluging is shipped in the release.

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### Author: ![Frankx9](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/f/3e96dc/32.png) [@Frankx9](https://discourse.paraview.org/u/Frankx9)
#### Post date: [September 16, 2025, 9:39am UTC](https://discourse.paraview.org/t/how-to-smooth-data-and-not-the-mesh/8644/4 "2025-09-16T09:39:57Z")

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Hi,

is this still available in paraview 6.0? If so under which plugin?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [September 16, 2025, 2:44pm UTC](https://discourse.paraview.org/t/how-to-smooth-data-and-not-the-mesh/8644/5 "2025-09-16T14:44:43Z")

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Yes, TopologyToolkit plugin