Summary
If you open the Mesh Editor, you’ll see the Percent Triangles option under LOD 0 > Reduction Settings > Percent Triangles in the right panel.
I’ve always used this to optimize my maps — it reduces the triangle count of a mesh and simplifies the geometry, which also lowers file size and memory usage.
But after today’s update, memory calculation seems broken. Our map jumped from 60k to 141k, and I even saw someone else’s map go from 70k to 310k.
Maybe it’s related to this setting, because now when you change the Percent Triangles value (e.g., from 100 to 1), it doesn’t do anything — the triangle count and mesh geometry stay the same.
So now we’ve got two issues:
Everyone’s memory usage spiked for no reason.
You can’t use the Percent Triangles setting to reduce memory anymore.
This needs to be fixed.
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Assets
Steps to Reproduce
Just open a mesh in the Mesh Editor and change the Percent Triangles value on the right side.
This used to reduce triangle count and optimize the mesh.
Expected Result
The triangle count should change, and the shape of the asset should update accordingly.
In other words, setting it from 100 to 1 should turn it into a low-poly mesh.
Observed Result
You’ll notice nothing changes — the asset’s geometry stays the same, and the triangle count doesn’t update either.
Platform(s)
PC
