Dark Vision

If you want to control darkvision through a race or class or similar mod, here you go:

These are the stats you can control, much like PlayerModelLib stats.

These work as absolute values, like a normal config. These are not multipliers!
Important: if you don't set a value for these or you set 0, the server config will be read instead. If server config is not enforced, then client values will be read.
To force a value of 0, set a value of -1 instead. I know.

dv-maxBrightness // max brightness boost at max adaptation. 0 - 1 default: 0.2
dv-adaptationTime // time to reach max adaptation after ramp or if user set linear. 1 - 600 seconds. default: 60
dv-adaptationLossTime // time to lose adaptation from light at minimum unadaptation brightness with no other multipliers. 1 - 300 seconds. default: 30
dv-desaturationThreshold // adaptation threshold at which desaturation reaches full strength. 0 - 1 default: 0.2  DEPRECATED
dv-maxDesaturation // max desaturation strength. 0 = off 1 = full grayscale. default: 0.7
dv-exposureMultiplier // controls how strong the exposure effect is after looking at a light when adapted to darkness. a value of 0 (-1) will disable it. 0 - 2 default: 1
dv-exposureLag // controls how long the exposure effect lasts. a value of 0 (-1) will disable it. 0 - 30 seconds. default: 7
dv-rampTime // ramps up to a percentage of the adaptation value in this amount of time. used for faster initial adaptation. 1 - 600 seconds. default: 15
dv-rampTargetPercent // percentage of the adaptation value to ramp to. 0 - 100 default: 60 - can be used as linear adaptation if set to 100.
dv-desatStartLight // at this sunlight level or above, desaturation is 0. default: 8
dv-desatEndLight // at this light level or below, desaturation is at max strength. default: 3
dv-maxUnadaptationMultiplier // multiplier for how fast bright lights should reduce adaptation. default: 5
dv-closeRangeMultiplier // multiplier for adaptation drain for close light sources. Consider that this multiplier also multiplies the one above. default: 4
dv-streaksIntensity // controls the intensity of the streaks. default: 1
dv-streaksLength // controls the length of the streaks. default: 0.5

if you have issues implementing these in your mod contact me.

If you override/patch shaders and want to make your mod compatible with darkvision:

Mod version 1.3.0+ patches shaders at runtime instead of overriding them. If your mod replaces/patches vanilla shaders and breaks compatibility with darkvision, you can ship a patch file to fix it yourself.

Full documentation is available in assets/darkvision/config/shaderpatches/documentation

This is not something I will do for you.