The bigger the world, the less performance you get.
HLOD for Hierarchical Level of Detail is the native UE5 optimization technique that helps rebuild your world with simplified meshes that are loaded and displayed at a far distance from the player to save resources and gain back perfomance.
Building HLOD takes tremendous amount of time. Depending on your level size, complexity and HLOD settings, it can range from some minute to days.
Building HLOD for your level is simple.
– First, your level must be a world partition level, if not refer to this tutorial on how to convert your level into a world partition level.
– On the top left of the viewport, click on “Build”, scroll down to the “World Partition” section, and select “Build HLODs”.
– A pop-up will appear to select the appropriate button: “Build HLODs”, “Delete HLODs” or “Cancel”.
Note: in the “World Settings” panel, go to the “World Partition” tab. There you can set the HLOD asset to use to build the world.
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