# How to use volume option in presentation menu?

**URL:** https://discourse.paraview.org/t/how-to-use-volume-option-in-presentation-menu/2703
**Category:** ParaView Support
**Created:** [October 6, 2019, 6:45am UTC](https://discourse.paraview.org/t/how-to-use-volume-option-in-presentation-menu/2703 "2019-10-06T06:45:58Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![xilingchu](https://discourse.paraview.org/user_avatar/discourse.paraview.org/xilingchu/32/1644_2.png) [@xilingchu](https://discourse.paraview.org/u/xilingchu)
#### Post date: [October 6, 2019, 6:45am UTC](https://discourse.paraview.org/t/how-to-use-volume-option-in-presentation-menu/2703/1 "2019-10-06T06:45:58Z")

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Hi everyone,

I tried to use a package named pyevkt in python to generate a 3-D rectilinear grid fluid field. But when I tried to view this field in paraview, I found that I couldn’t find volume option in presentation menu. Could you please tell me what should I do if I want to use this option?

 ![Screenshot%20from%202019-10-06%2014-44-23](https://discourse.paraview.org/uploads/default/original/2X/d/dd6490a7787e16d8b7e12c6a9bf4f107338ed957.png)  
Thanks all!

Ben

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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: [October 7, 2019, 2:42am UTC](https://discourse.paraview.org/t/how-to-use-volume-option-in-presentation-menu/2703/2 "2019-10-07T02:42:33Z")

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Rectilinear Grid are not a heavilly used format in the ParaView community and misses a few key feature like this one.

An easy work around is to use the “Ressample to Image” filter for fast image volume representation rendering.  
Another is to use the “Append Datasets” filter, that will convert it to a Unstructured Grid, for a more exact but much more slow volume rendering solution.

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### Author: ![xilingchu](https://discourse.paraview.org/user_avatar/discourse.paraview.org/xilingchu/32/1644_2.png) [@xilingchu](https://discourse.paraview.org/u/xilingchu)
#### Post date: [October 7, 2019, 1:40pm UTC](https://discourse.paraview.org/t/how-to-use-volume-option-in-presentation-menu/2703/3 "2019-10-07T13:40:16Z")

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Hi Westphal,

Thank you very much! It works!

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### Author: ![Giray\_ALBAYRAK](https://discourse.paraview.org/user_avatar/discourse.paraview.org/giray_albayrak/32/10072_2.png) [@Giray\_ALBAYRAK](https://discourse.paraview.org/u/Giray_ALBAYRAK)
#### Post date: [November 15, 2022, 10:45am UTC](https://discourse.paraview.org/t/how-to-use-volume-option-in-presentation-menu/2703/4 "2022-11-15T10:45:49Z")

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Dear Westphal;

Thank you very much. It works.