# How to enable quad buffer stereo rendering?

**URL:** <https://forums.unrealengine.com/t/how-to-enable-quad-buffer-stereo-rendering/420136>\
**Category:** Rendering\
**Tags:** stereo-rendering, unreal-engine, Rendering, question\
**Created:** [March 18, 2018, 2:03am UTC](https://forums.unrealengine.com/t/how-to-enable-quad-buffer-stereo-rendering/420136 "2018-03-18T02:03:07Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![alonezhby](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@alonezhby](https://forums.unrealengine.com/u/alonezhby)\
**Post date:** [March 18, 2018, 2:03am UTC](https://forums.unrealengine.com/t/how-to-enable-quad-buffer-stereo-rendering/420136/1 "2018-03-18T02:03:07Z")

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Hi,

4.19 release note mentioned this new feature:

\*\> New: Support for DX11 quad buffer stereo rendering.

Anybody know how to enable/use it?

Thanks!

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**Author:** ![Sephiroth\_FF](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sephiroth\_FF](https://forums.unrealengine.com/u/Sephiroth_FF)\
**Post date:** [May 7, 2018, 4:53am UTC](https://forums.unrealengine.com/t/how-to-enable-quad-buffer-stereo-rendering/420136/2 "2018-05-07T04:53:17Z")

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I am also very interested in having native stereoscopic 3d support in UE4 and I have been looking into the “DX11 quad buffer stereo rendering” feature and it seems these are the commits (only acessible if you have a GitHub account linked to Epic [https://github.com/EpicGames/UnrealEngine/commit/18d253cb04840b0e39325d471fbf60b5bbb4acef](https://github.com/EpicGames/UnrealEngine/commit/18d253cb04840b0e39325d471fbf60b5bbb4acef) and [https://github.com/EpicGames/UnrealEngine/commit/a779783c06e1ddec39bbc3c870e56ad5b1fdeff0](https://github.com/EpicGames/UnrealEngine/commit/a779783c06e1ddec39bbc3c870e56ad5b1fdeff0+)) and from what I seem to understand it seems to add compatibility with Microsoft’s official Stereo 3D API introduced in DXGI 1.2 (more detail here [https://docs.microsoft.com/en-us/windows-hardware/drivers/display/stereoscopic-3d](https://docs.microsoft.com/en-us/windows-hardware/drivers/display/stereoscopic-3d)) but, it only creates stereo buffers and I doesn’t seem to do any actual stereo rendering but I might be wrong. Still, this is a very big step for Stereo 3D support in UE4. Maybe the goal is for plugins such as [https://github.com/fweidner/UE4-Plugin-SideBySide](https://github.com/fweidner/UE4-Plugin-SideBySide) to be used to render each eye and they will simply have to fill these buffers with what they rendered.

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**Author:** ![alonezhby](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@alonezhby](https://forums.unrealengine.com/u/alonezhby)\
**Post date:** [May 11, 2018, 3:54am UTC](https://forums.unrealengine.com/t/how-to-enable-quad-buffer-stereo-rendering/420136/3 "2018-05-11T03:54:05Z")

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Thanks for your reply. I’ll do some research on it.

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**Author:** ![mike8852](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@mike8852](https://forums.unrealengine.com/u/mike8852)\
**Post date:** [May 22, 2018, 1:21pm UTC](https://forums.unrealengine.com/t/how-to-enable-quad-buffer-stereo-rendering/420136/4 "2018-05-22T13:21:44Z")

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did you find something? I am working on this too.

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**Author:** ![anonymous\_user\_5d4ad115](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_5d4ad115](https://forums.unrealengine.com/u/anonymous_user_5d4ad115)\
**Post date:** [October 28, 2018, 9:31pm UTC](https://forums.unrealengine.com/t/how-to-enable-quad-buffer-stereo-rendering/420136/5 "2018-10-28T21:31:13Z")

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Use the ‘-quad\_buffer\_stereo’ command line argument (this is obvious from the commit).  
Unfortunately, this is not enough, by default the right buffer is not being written to and is left completely black (Engine v4.20.3)

Note: According to the commit it should work with Windows 8.1, but for me it only worked with Windows 10 (tested both an AMD and an nVidia GPU).