# VR Post Process only rendering in left eye

**URL:** <https://forums.unrealengine.com/t/vr-post-process-only-rendering-in-left-eye/486331>\
**Category:** XR Development\
**Tags:** Post-Processing, unreal-engine, Post-Process, question\
**Created:** [July 18, 2021, 2:53am UTC](https://forums.unrealengine.com/t/vr-post-process-only-rendering-in-left-eye/486331 "2021-07-18T02:53:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Coolrooman](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Coolrooman](https://forums.unrealengine.com/u/Coolrooman)\
**Post date:** [July 18, 2021, 2:53am UTC](https://forums.unrealengine.com/t/vr-post-process-only-rendering-in-left-eye/486331/1 "2021-07-18T02:53:00Z")

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Hey There, I am working with mod tools for a VR game, I’ve created a post process material (From this tutorial [UE4 Tutorial: Radial Blur (Request) - YouTube](https://www.youtube.com/watch?v=4ccBjlAFt0s))

The problem is when I enable the post process in game it only renders in the left eye leaving the right eye completely black (I am using an HTC Vive), does anyone know if this is a known issue or how to fix it? Here is a picture of the material I am using

 ![344366-image-2021-07-17-235203.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/9/8/d98652c37ae581b998191df7a7603a5d56dad9a2.png)

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**Author:** ![RafigRzayev](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@RafigRzayev](https://forums.unrealengine.com/u/RafigRzayev)\
**Post date:** [August 28, 2023, 12:41pm UTC](https://forums.unrealengine.com/t/vr-post-process-only-rendering-in-left-eye/486331/2 "2023-08-28T12:41:59Z")

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I have same issue. There is guide for which effects are supported. I tried vignetteintensity, which is listed as supported, but effect happens just on left eye, right eye is completely blank.

This is the guide: [Post Process Effects on Mobile Platforms | Unreal Engine 4.27 Documentation](https://docs.unrealengine.com/4.27/en-US/SharingAndReleasing/Mobile/PostProcessEffects/)

I guess solution is here: [Quest 2 Mobile HDR - left eye black / not rendering - #5 by roushenzo](https://forums.unrealengine.com/t/quest-2-mobile-hdr-left-eye-black-not-rendering/615972/5)