rojo/.cursor/rules/roblox/en-us/environment/lighting.md

title	description
Global lighting	Explains how to customize the global lighting with the Lighting service.

The Class.Lighting service contains properties that you can adjust to update and customize the global lighting in an experience. There are five categories of lighting properties:

• Color — Configures hue within the experience.
• Intensity — Configures the intensity or amount of light hitting the camera.
• Shadows — Configures how a user experiences shadows within the experience.
• Appearance — Properties that determine the lighting style and lighting/shading quality or view distance prioritization.
• Environment — Configures the conditions of the experience's world, such as the time of day and geographic latitude.

Color

Ambient

The Class.Lighting.Ambient|Ambient property sets a hue for the entirety of an experience. This property affects the lighting for both outdoor and indoor environments.

OutdoorAmbient

The Class.Lighting.OutdoorAmbient|OutdoorAmbient property sets a hue for outdoor areas of an experience. This can help simulate how the ambient color of real-life lighting changes throughout the day. For example, sunlight in the early morning or late afternoon is usually warmer and more pink and orange in tone, while late evening is usually cooler and more blue and purple in tone.

In the following images, note that the lighting inside the garage and cafe doesn't change like it would if you were changing the Ambient property.

ColorShift_Top

The Class.Lighting.ColorShift_Top|ColorShift_Top property sets a hue that reflects from surfaces facing the sun or moon.

ColorShift_Bottom

The Class.Lighting.ColorShift_Bottom|ColorShift_Bottom property sets a hue that reflects from surfaces that are facing away from the sun or moon.

In the following images, note the hue change on the sandstone wall facing away from the sun.

Intensity

Brightness

The Class.Lighting.Brightness|Brightness property sets the intensity of illumination. This can help increase the contrast between brightly illuminated areas and shadows, simulating bright sunshine and warmer weather.

ExposureCompensation

The Class.Lighting.ExposureCompensation|ExposureCompensation property applies exposure to an experience. Exposure is the amount of light that reaches the camera.

A lower value is similar to under-exposure in photography, while a higher value is similar to over-exposure.

Shadows

GlobalShadows

When enabled, the Class.Lighting.GlobalShadows|GlobalShadows property renders shadows.

ShadowSoftness

The Class.Lighting.ShadowSoftness|ShadowSoftness property adjusts how blurry shadows are from a value of 0 (hard edges) to 1 (soft edges). This property is only valid when Class.Lighting.LightingStyle|LightingStyle is set to Enum.LightingStyle|Realistic.

Appearance

LightingStyle

Class.Lighting.LightingStyle|LightingStyle indicates the artistic intent behind lighting in the experience, as an Enum.LightingStyle option. Enum.LightingStyle|Realistic provides the most advanced and realistic lighting and shadows Roblox can deliver, while Enum.LightingStyle|Soft produces a flat, retro‑Roblox look with softer lights and shadows.

PrioritizeLightingQuality

The Class.Lighting.PrioritizeLightingQuality|PrioritizeLightingQuality property indicates whether you prefer lighting/shading quality or view distance to scale down first. As the rendering quality level reduces, a setting of true prioritizes features such as advanced shadows and high‑quality shaders at closer distances, while a setting of false prioritizes view distance. If lighting and shadows are very important to the artistic feel of your experience, set this to true.

Environment

ClockTime and TimeOfDay

The Class.Lighting.ClockTime|ClockTime and Class.Lighting.TimeOfDay|TimeOfDay property both represent the current time of day in hours, and they are directly related; if you change one property, the other also changes.

The only difference between these properties is their numeric value; Class.Lighting.ClockTime|ClockTime represents time from hour 0 through 24 while Class.Lighting.TimeOfDay|TimeOfDay represents time through a 24 hour string.

Note that each property doesn't follow the actual time of day, and they will not change during an experience unless changed through a script.

GeographicLatitude

The Class.Lighting.GeographicLatitude|GeographicLatitude property represents the geographic latitude in degrees. Note that while this property changes the position of the sun and moon, it does not change the Class.Lighting.ClockTime|ClockTime and Class.Lighting.TimeOfDay|TimeOfDay properties.

EnvironmentDiffuseScale

The Class.Lighting.EnvironmentDiffuseScale|EnvironmentDiffuseScale property determines how much ambient light is derived from the environment.

In the following images, note how the ambient light changes, particularly inside the kitchen of the ramen shop.

EnvironmentSpecularScale

The Class.Lighting.EnvironmentSpecularScale|EnvironmentSpecularScale property determines how much specular light is derived from the environment. When set near a value of 1, smooth objects better reflect the environment and metal appears more realistic.