# Smooth and Fast Animation of .bp folders

**URL:** https://discourse.paraview.org/t/smooth-and-fast-animation-of-bp-folders/14007
**Category:** ParaView Support
**Created:** [February 24, 2024, 5:35pm UTC](https://discourse.paraview.org/t/smooth-and-fast-animation-of-bp-folders/14007 "2024-02-24T17:35:22Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![evdkmv](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/e/ecc23a/32.png) [@evdkmv](https://discourse.paraview.org/u/evdkmv)
#### Post date: [February 24, 2024, 5:35pm UTC](https://discourse.paraview.org/t/smooth-and-fast-animation-of-bp-folders/14007/1 "2024-02-24T17:35:22Z")

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Dear ParaView Community,

I am looking for advice on how to obtain a smooth animation in Paraview for .bp folders. An example file can be found [here](https://drive.google.com/drive/folders/1Nh5MJgRW2Yl7NHEf2d0PufeJ1pTWRhRO?usp=sharing). When I open this diffusion.bp folder in ParaView (ParaView-5.12.0-RC3 on Mac M2 downloaded from [here](https://www.paraview.org/download/)) using FidesReader and click on the play button, the animation is slow (step change is slow).

I can resave it as “VTK PartitionedDataSetCollection Files(\*.vtpc )” and then when I open .vtpc the animation is fast and smooth. The animation is also fast if I save my results during simulation using .xdmf +.h5 and then use Xdmf3ReaderT. The xdmf + h5 files for comparison can be found [here](https://drive.google.com/drive/folders/1TuZTb9tZRZZfdDMGiyfogfWnMdF3dXKj?usp=sharing).

Since .xdmf is not properly maintained anymore and resaving data before visualization does not seem to be a very good approach, I am trying to find a solution to have a smooth animation working with .bp folders directly. Any help would be very appreciated.

Thanks!

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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: [February 26, 2024, 12:55pm UTC](https://discourse.paraview.org/t/smooth-and-fast-animation-of-bp-folders/14007/2 "2024-02-26T12:55:00Z")

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I would suggest using VTKHDF format:

[https://docs.vtk.org/en/latest/design\_documents/VTKFileFormats.html#vtkhdf-file-format](https://docs.vtk.org/en/latest/design_documents/VTKFileFormats.html#vtkhdf-file-format)

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [February 26, 2024, 4:18pm UTC](https://discourse.paraview.org/t/smooth-and-fast-animation-of-bp-folders/14007/3 "2024-02-26T16:18:37Z")

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cc @caitlin.ross @berkgeveci

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### Author: ![evdkmv](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/e/ecc23a/32.png) [@evdkmv](https://discourse.paraview.org/u/evdkmv)
#### Post date: [March 5, 2024, 10:46am UTC](https://discourse.paraview.org/t/smooth-and-fast-animation-of-bp-folders/14007/4 "2024-03-05T10:46:31Z")

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Thanks a lot @mwestphal ,

I will take a look at it.