Improved Fog – Arma 3
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{{GameCategory|arma3|Editing}} __NOTOC__ | {{GameCategory|arma3|Editing}} __NOTOC__ | ||
==General== | == General == | ||
Main improvements are: | Main improvements are: | ||
* fog density now decays with altitude | * fog density now decays with altitude | ||
* skybox and clouds are colored by fog | * skybox and clouds are colored by fog | ||
==Computation== | == Computation == | ||
Most importatnt values in computation: | Most importatnt values in computation: | ||
* '''fogBase''' - base altitude for fog (in meters) | * '''fogBase''' - base altitude for fog (in meters) | ||
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* '''fogDecay''' - how much the fog density decays with altitude. 0 = constant density, 0.0049333 = density halves every 500m | * '''fogDecay''' - how much the fog density decays with altitude. 0 = constant density, 0.0049333 = density halves every 500m | ||
==Config== | == Config == | ||
In world config following values can be configured: | In world config following values can be configured: | ||
startFogBase = 0.0; // base altitude for fog computations (in meters) | startFogBase = 0.0; // base altitude for fog computations (in meters) | ||
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fogBeta0Max = 0.02; // beta0 (macroscopic cross-section of atmospheric scatterers at base level) for fog value 1 | fogBeta0Max = 0.02; // beta0 (macroscopic cross-section of atmospheric scatterers at base level) for fog value 1 | ||
==Script commands== | == Script commands == | ||
Command [[setFog]] was extended - now can be used with some optional params | Command [[setFog]] was extended - now can be used with some optional params | ||
Revision as of 18:37, 31 January 2021
General
Main improvements are:
- fog density now decays with altitude
- skybox and clouds are colored by fog
Computation
Most importatnt values in computation:
- fogBase - base altitude for fog (in meters)
- beta0 - macroscopic cross-section of atmospheric scatterers at base altitude - determines density of fog based on distance from viewer at base altitude
- fogDecay - how much the fog density decays with altitude. 0 = constant density, 0.0049333 = density halves every 500m
Config
In world config following values can be configured:
startFogBase = 0.0; // base altitude for fog computations (in meters) forecastFogBase = 0.0; startFogDecay = 0.005; // decay coefficient - decay of fog with altitude forecastFogDecay = 0.005; fogBeta0Min = 0.0001; // beta0 (macroscopic cross-section of atmospheric scatterers at base level) for fog value 0 fogBeta0Max = 0.02; // beta0 (macroscopic cross-section of atmospheric scatterers at base level) for fog value 1
Script commands
Command setFog was extended - now can be used with some optional params