Density Settings

Controls how density-based culling is applied to instances.

This volume component provides two primary options:

• Global Density – Reduces the overall number of instances.

• Range-Based Density – Dynamically adjusts instance density based on screen coverage.

Attach this to a Volume to control instance density.

Properties

GlobalDensityEnabled

• Enables or disables global density culling.

  • When enabled, instance counts are reduced using GlobalDensity, but only for layers matching GlobalDensityMask and with a bounding size below GlobalDensitySizeThreshold.

GlobalDensityMask

• Specifies which instance layers are affected by global density culling.

GlobalDensity

• The fraction of instances to keep when global density is active.

  • 1.0 = Keep all instances.

  • 0.5 = Keep half.

  • 0.0 = Cull all matching instances.

GlobalDensitySizeThreshold

• Instances larger than this threshold (by bounding box diagonal) are exempt from global density culling.

RangeDensityEnabled

• Enables or disables range-based density culling.

  • Uses screen coverage to reduce instances that appear small on screen.

RangeDensityMask

• Specifies which layers are affected by range-based density culling.

RangeDensity

• The lowest density level to apply at the smallest screen coverage.

  • 0.1 = Only 10% of far-away/small instances remain.

RangeDensityFalloffPower

• Controls the sharpness of the density falloff curve.

  • Higher values = faster falloff.

  • Lower values = smoother transition.

RangeDensityScreenPercentage

• Screen coverage thresholds for applying range-based density.

  • Defined as a percentage of screen size.

  • Lower bound is controlled by MinScreenSize.