# Scene turns black while meshes don't after baking lights using GPU Lightmass **URL:** \ **Category:** Rendering\ **Tags:** baked-lighting, baking, unreal-engine\ **Created:** [January 22, 2024, 10:07pm UTC](https://forums.unrealengine.com/t/scene-turns-black-while-meshes-dont-after-baking-lights-using-gpu-lightmass/1635290 "2024-01-22T22:07:44Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![KlageHM](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@KlageHM](https://forums.unrealengine.com/u/KlageHM)\ **Post date:** [January 22, 2024, 10:07pm UTC](https://forums.unrealengine.com/t/scene-turns-black-while-meshes-dont-after-baking-lights-using-gpu-lightmass/1635290/1 "2024-01-22T22:07:44Z")
![IMG_20240123_002003](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/a/5/4a55e454ac443d4213ca0ba01afe55cb5eeb5987.png) ![IMG_20240123_002039](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/0/c/f0c6c3465e56ccd58e064debdac56b69cb00cb74.png) Hello everyone. Trying to bake this simple scene with props but at the end doesn’t matter what method I use (GPU Lightmass or traditional Swarm) I get the result which is shown on one of the first picture (second picture shows how the scene looks before baking lighting). For lighting and reflections in this project I use ray tracing (engine version: 5.0.3). Every light source is static and post processing volume is set as extended (applied to an entire level). That’s the tutorial I watched to bake lighting on my scene using GPU Lightmass: [https://youtu.be/Tx-PNbKmLPU?si=t8Q0wobXjepGhiJe](https://youtu.be/Tx-PNbKmLPU?si=t8Q0wobXjepGhiJe) (and I have the settings set the same as in this video). What here could possibly go wrong and what can I try to fix this? This is a problem I must fix because it’s a showcase scene for my props pack and according to official UE Marketplace requirements - lighting must be built on every level. So I’m really hoping to your help