# Filters not available !
**URL:** https://discourse.paraview.org/t/filters-not-available/16472
**Category:** ParaView Support
**Tags:** vtk
**Created:** [April 15, 2025, 1:38pm UTC](https://discourse.paraview.org/t/filters-not-available/16472 "2025-04-15T13:38:20Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Nour\_Touil](https://discourse.paraview.org/u/Nour_Touil)
#### Post date: [April 15, 2025, 1:38pm UTC](https://discourse.paraview.org/t/filters-not-available/16472/1 "2025-04-15T13:38:20Z")
Hi !
I’m about to use ParaView to visualize a julia simulation in order to make it more realistic (2D to 3D ) but the filters i need aren’t available ( like warp by scalar ) , i already convert the outputs to .vtu .
I’ll be thankfull to explain the situation because this is my first time here and i need the visaulization ASAP
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [April 15, 2025, 1:41pm UTC](https://discourse.paraview.org/t/filters-not-available/16472/2 "2025-04-15T13:41:45Z")
> [@I've just opened my dataset. I can't add filters, and everything is greyed out](https://discourse.paraview.org/t/ive-just-opened-my-dataset-i-cant-add-filters-and-everything-is-greyed-out/4511):
>
> Make sure your dataset is selected in the Pipeline Browser Click apply (in the Properties tab) if the apply button is green
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### Author:  [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)
#### Post date: [April 15, 2025, 1:47pm UTC](https://discourse.paraview.org/t/filters-not-available/16472/3 "2025-04-15T13:47:28Z")
If some filters are available but others are not, it could also be this.
> [@Visualization using streamlines and contours](https://discourse.paraview.org/t/visualization-using-streamlines-and-contours/10729/2):
>
> Use the Cell Data to Point Data filter to convert the PhiZ field to point data. Then the contour filter will be available to contour it.