# Using Nvidia Index

**URL:** https://discourse.paraview.org/t/using-nvidia-index/3760
**Category:** ParaView Support
**Created:** [March 6, 2020, 10:45am UTC](https://discourse.paraview.org/t/using-nvidia-index/3760 "2020-03-06T10:45:55Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Quefrency](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/q/e0b2c6/32.png) [@Quefrency](https://discourse.paraview.org/u/Quefrency)
#### Post date: [March 6, 2020, 10:45am UTC](https://discourse.paraview.org/t/using-nvidia-index/3760/1 "2020-03-06T10:45:55Z")

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Hello,

Has anyone tried to use Index to visualise the the openfoam motorBikeLES case?  
I tried visualise the velocity on a friends GTX1060 and I got an error message " main warning: Irregular volume data preperation: Topology issue, 283210 of 62490532 faces are used be more than 2 cells. Fixed topology, buth there will be rendering artifacts…"  
There are a lot of artifacts.

Does anyone know of a working around to fix this?

Thanks.

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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: [March 6, 2020, 2:20pm UTC](https://discourse.paraview.org/t/using-nvidia-index/3760/2 "2020-03-06T14:20:12Z")

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Hi,

If no one answers here, you can email [paraview-plugin-support@nvidia.com](mailto:paraview-plugin-support@nvidia.com) for index support.