# no input scalars

**URL:** https://discourse.paraview.org/t/no-input-scalars/12102
**Category:** ParaView Support
**Tags:** vtk
**Created:** [May 16, 2023, 1:34am UTC](https://discourse.paraview.org/t/no-input-scalars/12102 "2023-05-16T01:34:58Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![fchu](https://discourse.paraview.org/user_avatar/discourse.paraview.org/fchu/32/12071_2.png) [@fchu](https://discourse.paraview.org/u/fchu)
#### Post date: [May 16, 2023, 1:34am UTC](https://discourse.paraview.org/t/no-input-scalars/12102/1 "2023-05-16T01:34:58Z")

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Dear all,

I have some troubles with rendering data. The initial time is normal however the data of next time is not normal.

Could you help me?  
the initial time:

 ![4d204460d081e0e3f12b0e3976c38ae](https://discourse.paraview.org/uploads/default/original/2X/c/c61cc1a9ce0954b2bca5f5798ab0377245ab5785.jpeg)  
the next time:  
 ![2316f328b1badfd410a6de489a20ab6](https://discourse.paraview.org/uploads/default/original/2X/1/1bb44a9cbe3c1ee912fec63abfa0b7b16b43f521.png)

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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: [May 16, 2023, 7:03am UTC](https://discourse.paraview.org/t/no-input-scalars/12102/2 "2023-05-16T07:03:18Z")

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Try adding a calculator in between ?

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<div class="post-metadata">

### Author: ![fchu](https://discourse.paraview.org/user_avatar/discourse.paraview.org/fchu/32/12071_2.png) [@fchu](https://discourse.paraview.org/u/fchu)
#### Post date: [May 16, 2023, 10:51am UTC](https://discourse.paraview.org/t/no-input-scalars/12102/3 "2023-05-16T10:51:05Z")

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Hi, I might find the problem. That is the fault during the reconstrucPar process, which results in the obliterated data.

 ![60082b0c37937a516629b93cc8aeb6d](https://discourse.paraview.org/uploads/default/original/2X/a/a1a40a99e364a4a36eb66504dbd2fbcd500ea8a7.png)

Could you help me to fix the problem?

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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: [May 17, 2023, 6:12am UTC](https://discourse.paraview.org/t/no-input-scalars/12102/4 "2023-05-17T06:12:58Z")

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What is this file ?

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<div class="post-metadata">

### Author: ![fchu](https://discourse.paraview.org/user_avatar/discourse.paraview.org/fchu/32/12071_2.png) [@fchu](https://discourse.paraview.org/u/fchu)
#### Post date: [May 17, 2023, 8:58am UTC](https://discourse.paraview.org/t/no-input-scalars/12102/5 "2023-05-17T08:58:01Z")

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Hi, Mathieu,  
I have solved this problem, which is attributed to my initial codes.  
“runTime.write();”  
Thank you for your attention and help.