WorldWind Kotlin/earth.worldwind/FogSse

FogSse

class FogSse

Far-field tile detail degradation driven by an exponential distance-fog model: tile selection subtracts a bounded fog term from each tile's projected screen-space error, and tiles past full fog saturation are culled from assembly (see earth.worldwind.util.Tile.mustSubdivide and earth.worldwind.util.Tile.isFullyFogged). Density falls off with camera altitude, so degradation concentrates near the horizon at low altitudes and vanishes at high ones. Per-engine settings, snapshotted into the render context once per frame.

Constructors

constructor()

Types

object Companion

Properties

var density: Double

Base fog density; larger values move degradation closer to the camera.

var heightFalloff: Double

Exponent of the camera-altitude falloff; smaller values thin the fog more gradually with altitude.

var heightScalar: Double

Scales base density by camera altitude before the height falloff is applied.

var isEnabled: Boolean

Master switch for fog-based detail degradation and the full-fog assembly cull.

var maxHeight: Double

Camera altitude in meters above which fog degradation is disabled entirely.

screenSpaceErrorFactor

var screenSpaceErrorFactor: Double

Error demotion at full fog, in units of the subdivision threshold; 1.0 ~ one level coarser.

Functions

fun frameDensity(height: Double, tilt: Angle): Double

Fog density for the frame's camera height and tilt; 0 when disabled or above maxHeight.