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Controls plant density, draw distance, animation and sometimes foliage shadows.
FPS
High
Visual
High
VRAM
Low
CPU
High
Latency
None
What it does
Dense foliage can stress geometry, transparency, shadows and the CPU at the same time.
Games may also call it: Vegetation Quality, Foliage Density
Decision guide
Lower it when
Lower it in forests or grass-heavy scenes that create repeatable frame drops.
Keep it high when
Keep it higher when low values cause obvious bare terrain or aggressive pop-in.
Handheld advice
Medium usually preserves the world better than low while cutting a meaningful cost.
Restart
Usually not required
Some games still apply changes only after reloading a scene or restarting.
Do not overread the meter
Grass density and foliage distance may be separate settings.