Gamma Utils Guide: Night Vision, Strength, Fog Color, HUD Icon and Transitions

guide

Gamma Utils is a brightness and Night Vision utility mod that makes dark areas easier to see, and it is operated entirely through its config interface and hotkeys rather than through crafting.

Toggling Night Vision

Use the Toggle Night Vision action to switch Night Vision on or off. A separate action, Increase Night Vision, raises the current value, and Decrease Night Vision lowers it. Each press of an increase or decrease action changes the value by the amount set in Night Vision Percentage Step.

The value applied while Night Vision is switched on is stored in Toggled Night Vision Percentage. A related option makes the toggle value keep the last non-zero value you used, so your previous setting is restored instead of resetting.

If you prefer not to manage the value manually, turn on Enable Dynamic Night Vision. With this active, the mod adjusts Night Vision on its own based on how much light is around you. Minimum Night Vision Strength is the value used at light level 15, and Maximum Night Vision Strength is the value used at light level 0. The speed at which this adjustment happens when light changes is also configurable.

Note that some features report: "This feature does not work with Dynamic Night Vision enabled."

Fog Color and HUD Icon

Turn on Brighten Fog Color if you want Night Vision to lighten the fog as well, matching how vanilla Night Vision behaves.

To display the Night Vision HUD and inventory icon the same way a normal status effect appears, enable the status effect display option for Night Vision. There is a matching option for Gamma that shows a status effect when the Gamma percentage is outside the normal range: "High Gamma" above 100 and "Low Gamma" below 0.

Transition Settings

Enable Smooth Transition makes toggling Gamma gradual rather than instant. When it is active, the speed is set as a percentage per second. Night Vision has its own smooth transition option, and it also has its own speed setting expressed as a percentage per second.

Be aware that smooth transition does not function while the corresponding dynamic mode is running.

Default Gamma Percentage is the value used when Gamma is switched off, and Toggled Gamma Percentage is the value used when it is switched on. Gamma Percentage Step controls how much each increase or decrease action changes the value. An option lets the toggle value retain the last non-default value you used.

Enable Dynamic Gamma makes Gamma follow the light level around the player. Minimum Gamma Strength applies at light level 15 and Maximum Gamma Strength at light level 0, with a configurable transition speed for light changes.

Averaging Light Level Range sets how many blocks around the player are sampled when averaging light. Sky Brightness Override lets you keep dynamic Gamma lower while under skylight; the mod uses whichever is higher between this setting and the real sky brightness, which is 20 at midnight and 100 at noon.

Enable Dimension Preference applies a preferred Gamma strength automatically when you change dimensions, with separate preferred values for the Overworld, the Nether, and the End.

Limit options let you enforce minimum and maximum Gamma and Night Vision values. Disabling the limit check may cause problems with Sodium, and if you use Sodium you should restart after changing the minimum or maximum limit.

Commands and Messages

Namespaced commands adds a namespace to all Gamma Utils commands, which helps avoid clashes with other mods or with server commands.

Optional messages can report changes, including the new Gamma percentage when it changes and the new Night Vision percentage when it changes.

Operating the Mod

Every action above is triggered by its own hotkey. Assign these in the controls menu, since no default keys are given here. All numeric values and on/off choices are changed inside the Gamma Utils Config screen.