# How can I make use of interactive select points when I am using volume rendering in paraview?
**URL:** https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572
**Category:** ParaView Support
**Tags:** vtk, python
**Created:** [March 1, 2021, 1:14pm UTC](https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572 "2021-03-01T13:14:12Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Samanvith\_Sam](https://discourse.paraview.org/u/Samanvith_Sam)
#### Post date: [March 1, 2021, 1:14pm UTC](https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572/1 "2021-03-01T13:14:13Z")
I have a 3d data set and I have created a 3d volume render of the dataset. I want to display the values of the data when I hover the cursor over the 3d volume, but that is not happening. I have observed that "interactive select points " works fine when I use a surface render. So is it possible to make use of "interactive select points " when being in volume render or is there any different ways to do it?
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 1, 2021, 1:44pm UTC](https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572/2 "2021-03-01T13:44:25Z")
Not possible afaik. You could first convert your dataset into a point cloud, that would let you interactive select through all of it.
---
### Author:  [@Samanvith\_Sam](https://discourse.paraview.org/u/Samanvith_Sam)
#### Post date: [March 1, 2021, 1:59pm UTC](https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572/3 "2021-03-01T13:59:09Z")
@mwestphal Thank you for the response.
I would like to know how do I convert my dataset into point cloud ?
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 1, 2021, 2:01pm UTC](https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572/4 "2021-03-01T14:01:07Z")
The simplest way (currently) is to use FIndData to select all your points and the ExtractSelection filter.
---
### Author:  [@Samanvith\_Sam](https://discourse.paraview.org/u/Samanvith_Sam)
#### Post date: [March 1, 2021, 2:04pm UTC](https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572/5 "2021-03-01T14:04:32Z")
@mwestphal Thank you. I will look into it.
---
### Author:  [@Samanvith\_Sam](https://discourse.paraview.org/u/Samanvith_Sam)
#### Post date: [March 1, 2021, 3:57pm UTC](https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572/6 "2021-03-01T15:57:22Z")
@mwestphal I executed the steps that were suggested by you. But at the end in order to use the “interactive select points,” I have to represent my cube in the surface rendering. But I want the representation to stay in volume and use the interactive select points.
Here is my representation of my dataset for reference.
[21cm\_BT.pvsm](https://discourse.paraview.org/uploads/short-url/3CUDJqJlNgrAxx8sueylZLNBPfI.pvsm) (278.7 KB)
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 1, 2021, 4:00pm UTC](https://discourse.paraview.org/t/how-can-i-make-use-of-interactive-select-points-when-i-am-using-volume-rendering-in-paraview/6572/7 "2021-03-01T16:00:30Z")
Show both the volume and the result of the extraction.