# Upstreaming GPU Lightmass fork by Yujiang Wang 

**URL:** <https://forums.unrealengine.com/t/upstreaming-gpu-lightmass-fork-by-yujiang-wang/2763900>\
**Category:** Rendering\
**Tags:** unreal-engine, Epic-Pro-Support, question\
**Created:** [August 3, 2026, 7:10am UTC](https://forums.unrealengine.com/t/upstreaming-gpu-lightmass-fork-by-yujiang-wang/2763900 "2026-08-03T07:10:40Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![Jimbohalo10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jimbohalo10/32/961440_2.png) [@Jimbohalo10](https://forums.unrealengine.com/u/Jimbohalo10)\
**Post date:** [September 9, 2026, 3:18pm UTC](https://forums.unrealengine.com/t/upstreaming-gpu-lightmass-fork-by-yujiang-wang/2763900/3 "2026-09-09T15:18:47Z")

</div>

hi @anonymous-edc , @AleksJN

Firstly you must use the correct posting in the Conference/thread

[Update to the Epic GPULightmass for 5.8.2 current 8th September 2026 - Development / Rendering - Epic Developer Community Forums](https://forums.unrealengine.com/t/epics-gpulightmass/139357/667)

This post is regularly updated.

This uses the original update method from **[Luoshuang’s GPULightmass Unreal Engine 5.4.3](https://forums.unrealengine.com/t/luoshuang-s-gpulightmass-unreal-engine-5-4-3-and-5-4-4-patch/1905932)**

This overwrite the original 5.\* Production Binary in both cases.

**[Luoshuang’s GPULightmass Unreal Engine 5.4.3](https://forums.unrealengine.com/t/luoshuang-s-gpulightmass-unreal-engine-5-4-3-and-5-4-4-patch/1905932) was the last update for the original baking method. Due to severe technical problems causing corruption of projects in later versions**

In my case work stopped and as the Unreal Engine 6.\* (UE5/UEFN) scheduled Q4 2027 wont be any updates as the only version is to build from source which is little interest to developers.

---

_[View the full topic](https://forums.unrealengine.com/t/upstreaming-gpu-lightmass-fork-by-yujiang-wang/2763900)._