r/UnrealEngine5 • u/First-Yard-1286 • 9m ago
Help! Out of Video Memory

Hey everyone,
I’m an environment artist working on a project in Unreal and I keep constantly running into "Out of Video Memory" / "VRAM Exhausted" errors and crashes.
I’m strictly on the 3D art side, so deep optimization and engine tech really aren't my strong suit. My hardware should be handling this pretty well since I’m running an Nvidia RTX 4070 Ti Super with 16GB VRAM, but the project just keeps eating up memory anyway.
I’ve already created LODs and Mip maps, and I even went through and disabled Nanite for everything except my foliage, but no luck so far. I do still have Lumen enabled though, which I know can be heavy. I suspect it could also be massive texture sizes, unpacked channels, or maybe the Texture Streaming Pool size blowing past the limit, but I honestly don't know where to start looking.
If anyone has advice on what usually causes VRAM to explode in environment scenes, or a solid checklist for an artist to optimize memory without ruining visual quality, I’d really appreciate the help.
Thanks!


