# Problem with Gradient Filter in computing vorticity
**URL:** https://discourse.paraview.org/t/problem-with-gradient-filter-in-computing-vorticity/15168
**Category:** ParaView Support
**Created:** [August 5, 2024, 4:29am UTC](https://discourse.paraview.org/t/problem-with-gradient-filter-in-computing-vorticity/15168 "2024-08-05T04:29:13Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Gaurav\_Gupta](https://discourse.paraview.org/u/Gaurav_Gupta)
#### Post date: [August 5, 2024, 4:29am UTC](https://discourse.paraview.org/t/problem-with-gradient-filter-in-computing-vorticity/15168/1 "2024-08-05T04:29:13Z")
Hello,
I am analysing the vortices around my geometry using the Gradient Filter. The output looks boxy and discontinous near the geometry (See the reference image). How could I resolve this issue ? The mesh is finer then the boxes I get in the output, so it is probably not a mesh issue. I tried with a fine mesh but same output.
 
How can I resolve this issue ?
Thanks,
Gaurav
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### Author:  [@sherin.sugathan](https://discourse.paraview.org/u/sherin.sugathan)
#### Post date: [August 5, 2024, 10:51am UTC](https://discourse.paraview.org/t/problem-with-gradient-filter-in-computing-vorticity/15168/2 "2024-08-05T10:51:15Z")
Can you try resampling the data to a uniform grid and then compute the gradients? The **Resample to Image** filter can be used for this purpose. Not sure, but it may help in creating a grid where the gradient calculation might be more consistent. Remember to mark this as a solution if it works for you 🙂 If you arrive at a different solution, please write about your solution here so that it becomes useful for others as well. 🙂