# ParticleTracking reinjection and general enquiry

**URL:** https://discourse.paraview.org/t/particletracking-reinjection-and-general-enquiry/10612
**Category:** ParaView Support
**Created:** [October 27, 2022, 4:19am UTC](https://discourse.paraview.org/t/particletracking-reinjection-and-general-enquiry/10612 "2022-10-27T04:19:06Z")
**Posts on this page:** 1
**Showing post:** 16

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### Author: ![Ouxid](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/o/c2a13f/32.png) [@Ouxid](https://discourse.paraview.org/u/Ouxid)
#### Post date: [November 14, 2022, 3:43am UTC](https://discourse.paraview.org/t/particletracking-reinjection-and-general-enquiry/10612/16 "2022-11-14T03:43:40Z")

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Hi!

I am reverting after a while.  
I have been trying but can not find a way to solve my issue of generating timesteps.  
If I apply the particle tracer on the particle generator, they go everywhere randomly, I guess from the bug you noticed. But if I generate a time generator but still apply the particle tracer on the original field, I get this weird bug:

https://player.vimeo.com/video/769811163?h=fc23450eff&app_id=122963

The workaround of saving on disk is not successful, since the loadtime of each timestep is quite slow.  
Finally, I tried to create a programmable filter creating time-step, with no success since the particle tracer seems not to take into account the generated timesteps (maybe just because I can’t create a proper filter, raised another topic on that… [Create a programmable filter along timesteps](https://discourse.paraview.org/t/create-a-programmable-filter-along-timesteps/10723))

At this point I am not sure which route I should go. The only one working so far is the temporal interpolate, but the fact that for each time step it calculates a new field make it too slow…

If you have any clue on any of these issues, It’d be more than welcome! Thanks!

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