Atmospheric Effects

Vibrant Visuals allows you to customize atmospheric effects using the atmospherics/atmospherics.json file. This uses the following format:

{
  string "format_version", // The 3-part schema version for parsing these atmosphere settings.
  object "minecraft:atmosphere_settings"
  {
    object "description"
    {
      string "identifier" // The identifier for these atmosphere settings. The identifier must include a namespace.
    },
    object "horizon_blend_stops" // How the atmosphere is divided up
    {
      float "min" : optkeyframe, // The minimum horizon height
      float "start" : optkeyframe, // The height relative to the horizon where the zenith contribution will take over
      float "mie_start" : optkeyframe, // The height relative to the horizon where mie scattering begins
      float "max" : optkeyframe // The maximum horizon height
    }
    float "rayleigh_strength" : optkeyframe, // How strong the atmosphere's rayleigh scattering term is
    float "sun_mie_strength" : optkeyframe, // How strong the sun's mie scattering term is
    float "moon_mie_strength" : optkeyframe, // How strong the moon's mie scattering term is
    float "sun_glare_shape" : optkeyframe, // How the lobe of the mie scattering is shaped
    color "sky_zenith_color" : optkeyframe, // The RGB color of the zenith region of the atmosphere; supports RGB array or HEX string
    color "sky_horizon_color" : optkeyframe // The RGB color of the horizon region of the atmosphere; supports RGB array or HEX string
  }
}

Any of these values can be individually key framed; see Key Frame JSON Syntax for more details.

Note that the colors defined for the sun and moon directional lights in lighting/global.json will also be used in the calculation of the atmosphere and thus will have a significant impact on the final sky color. This is especially true with both the Rayleigh and Mie scattering terms.

You can get a sample project starter for various Vibrant Visuals lighting settings at https://github.com/microsoft/minecraft-samples/tree/main/deferred_lighting_starter.

Example atmospherics/atmospherics.json

{
    "format_version": "1.21.40",
    "minecraft:atmosphere_settings": {
        "description": {
            "identifier": "my_pack:default_atmospherics"
        },
        "horizon_blend_stops":{
            "min": { 
                "0.0": 0.0, 
                "0.1962499916553497": 0.008, 
                "0.25": 0.0, 
                "0.34": 0.11, 
                "0.6": 0.027, 
                "0.6750000119209290": 0.01332983374595642, 
                "0.7487499713897705": 0.0, 
                "0.8174999952316284": 0.0 
            }, 
            "start": { 
                "0.0": 0.25, 
                "0.1962499916553497": 0.4179066121578217, 
                "0.25": 0.213, 
                "0.34": 0.401, 
                "0.6": 0.23, 
                "0.6750000119209290": 0.2143078744411469, 
                "0.7487499713897705": 0.1990064233541489, 
                "0.8174999952316284": 0.6179999709129333 
            }, 
            "mie_start": {
                "0.0": 0.5,
                "0.1962499916553497": 1.172000050544739,
                "0.25": 0.5,
                "0.34": 0.5009999871253967,
                "0.6": 0.167,
                "0.6750000119209290": 0.15,
                "0.7487499713897705": 0.55,
                "0.8174999952316284": 0.79
            }, 
            "max": { 
                "0.0": 0.25, 
                "0.1962499916553497": 0.137, 
                "0.25": 0.0, 
                "0.34": 0.467, 
                "0.6": 0.2,
                "0.6750000119209290": 0.1919008344411850, 
                "0.7487499713897705": 0.214, 
                "0.8174999952316284": 0.0 
            }
        },
        "rayleigh_strength": { 
            "0.0": 1.026124954, 
            "0.25": 0.1624998152, 
            "0.3": 0.1624998152, 
            "0.3037499785423279": 0.1624998152, 
            "0.3249999880790710": 0.1624998152, 
            "0.6": 0.5, 
            "0.7074999809265137": 0.1982535422, 
            "0.75": 0.125
        }, 
        "sun_mie_strength": { 
            "0.0": 1.0, 
            "0.25": 3.0, 
            "0.3": 3.0, 
            "0.3037499785423279": 2.878501892089844, 
            "0.3249999880790710": 1.0, 
            "0.6": 1.0, 
            "0.7074999809265137": 1.0, 
            "0.75": 1.0 
        }, 
        "moon_mie_strength": { 
            "0.0": 0.0, 
            "0.25": 0.0, 
            "0.3": 0.0, 
            "0.3037499785423279": 0.114, 
            "0.3249999880790710": 1.0, 
            "0.6": 1.0, 
            "0.7074999809265137": 0.0, 
            "0.75": 0.0 
        }, 
        "sun_glare_shape": { 
            "0.0": 15.89900016784668, 
            "0.25": 15.89900016784668, 
            "0.3": 15.89900016784668, 
            "0.3037499785423279": 15.84438705444336, 
            "0.3249999880790710": 15.0, 
            "0.6": 4.0, 
            "0.7074999809265137": 4.0, 
            "0.75": 4.0 
        }, 
        "sky_zenith_color": { 
            "0.0": [0, 125, 164], 
            "0.25": [11, 55, 97], 
            "0.5": [7, 10, 36], 
            "0.75": [50, 88, 170] 
        }, 
        "sky_horizon_color": { 
            "0.0": [255, 255, 254],
            "0.171875": [196, 133, 102], 
            "0.25": [255, 85, 85], 
            "0.305": [173, 60, 67], 
            "0.35": [168, 76, 140], 
            "0.4174999892711639": [130, 99, 169], 
            "0.47": [66, 98, 238], 
            "0.6030000448226929": [66, 98, 238], 
            "0.6474999785423279": [168, 99, 162], 
            "0.75": [238, 144, 124], 
            "0.84": [242, 168, 152] 
        }
    }
}