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Dimension radiation settings

Background and field radiation settings.

The entry ID is the dimension ID. For the Nether, use data/minecraft/hbm/radiation_settings/the_nether.json.

Example:

{
  "ambient_rad": 0.1
}

All seven fields are optional. Omitted diffusivity, half_life_seconds, fog_rad, fog_chance and world_rad_effects use the same-named radiation_config values.

Fields

FieldMeaning and defaultRange
diffusivity​OptionalField-diffusion rate; global default 10.[0.000001, \texttt{f64::MAX}]
half_life_seconds​OptionalField decay half-life in seconds; global default 120.[0.000001, \texttt{f64::MAX}]
fog_rad​OptionalPocket radiation above which fog can appear; global default 100.[0, \texttt{f64::MAX}]
fog_chance​OptionalA pocket above fog_rad spawns fog with probability 1/\mathrm{fog\_chance} per second; global default 20.[1, \texttt{f64::MAX}]
world_rad_effects​OptionalEnables radiation decay of surface blocks; global default true.
ambient_rad​OptionalBackground radiation in rad/s; default 0.[0, \texttt{f64::MAX}]
diffusivity_transportTurns block-dependent transport on or off; omitted, it is on when a transport class with a value other than 1.0 loaded.

Background radiation

Background radiation is applied at exposure time and remains constant. An entity where the field is at or above zero takes whichever is higher, the field or the background. Absorbers can pull the field below zero, down to minus the background; there the entity takes the background minus that drain, reaching zero at the lowest point. Raw-field instruments show the field itself, including negative values.

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