# PostProcessing on left eye only
**URL:** https://discussions.unity.com/t/postprocessing-on-left-eye-only/908288
**Category:** XR
**Tags:** XR, Meta-Quest, Question
**Created:** [February 5, 2023, 8:27pm UTC](https://discussions.unity.com/t/postprocessing-on-left-eye-only/908288 "2023-02-05T20:27:04Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@gilamran](https://discussions.unity.com/u/gilamran)
#### Post date: [February 5, 2023, 8:27pm UTC](https://discussions.unity.com/t/postprocessing-on-left-eye-only/908288/1 "2023-02-05T20:27:04Z")
Hi,
I’m investigating some eye correction software using Unity.
I want to add a post-processing filter to only one of the eyes…
On my tests I’ve created two cameras targeting the left and the right eye respectively. I’ve added post processing Layer and a profile for each, but when I look at it on the VR I see that both cameras are getting the post processing… Just added Bloom to the left eye profile… but both are getting it, what am I doing wrong?
Any help would be appreciated!
Thanks
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### Author:  [@nilagard](https://discussions.unity.com/u/nilagard)
#### Post date: [February 5, 2023, 8:50pm UTC](https://discussions.unity.com/t/postprocessing-on-left-eye-only/908288/2 "2023-02-05T20:50:55Z")
This is how Unity handles shaders. If you take a dive into the VR section in the Unity Documentation you will get a better understanding of how a VR headset is rendered and how the engine handles it and how you can get around this “problem” of yours. Mainly your question is about the SinglePass and Multipass I believe.
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### Author:  [@josefgrunig](https://discussions.unity.com/u/josefgrunig)
#### Post date: [March 24, 2025, 8:48am UTC](https://discussions.unity.com/t/postprocessing-on-left-eye-only/908288/3 "2025-03-24T08:48:40Z")
Hi @gilamran,
did you find a solution to your question? I have a similar problem.