Hi everyone,
I’ve been working on a large open world project using Unreal Engine 5.3 and running into some performance issues related to dynamic lighting. I’m using Lumen for global illumination, which looks amazing, but my frame rate drops significantly when the player moves through heavily forested or shadowed areas.
I’ve tried a few things so far:
- Reduced foliage density
- Limited dynamic lights to key areas
- Switched some meshes to Nanite (which helped a bit)
Still, the lighting seems to be the major bottleneck. I’m considering baking some lights or adjusting the post-process settings, but I’d love to hear what others are doing for similar projects.
Questions:
- Has anyone found a sweet spot between visual quality and performance when using Lumen in open environments?
- Is there a reliable way to profile which lights or settings are causing the biggest drain?
- Are there community-favorite plugins/tools for optimizing lighting setups?
Any suggestions or best practices would be greatly appreciated!
Thanks in advance,
Dev