This page provides information on the Spot Light in Unreal.
Page Contents
Overview
A Spot Light emits light from a single point in a cone shape. Users are given two cones to shape the light - the Inner Cone Angle and Outer Cone Angle. Within the Inner Cone Angle, the light achieves full brightness. As you go from the extent of the inner radius to the extents of the Outer Cone Angle, a falloff takes place, creating a penumbra, or softening around the Spot Light's disc of illumination. For any additional information, see the Unreal Spot Light documentation.
UI Path:||Modes Tab|| > Lights > Spot Light
Spot Light Properties
Only features that are supported in the current version will be explained.
Light
- Intensity - Total energy that the light emits.
- Light Color - The color that the light emits.
- Inner Cone Angle - Sets the inner cone angle of the Spot Light, in degrees.
- Outer Cone Angle - Sets the outer cone angle of the Spot Light, in degrees.
- Affects Wold - When enabled (the default), the light contributes in the lighting of the level. Disabling it will stop the contribution of the light in the environment.
- Cast Shadows - When enabled (the default), the light casts shadows. Turn this option off to disable shadow casting for the light.
- Use Inverse Squared Falloff - Whether to use physically based inverse squared distance falloff.
Light Profiles
- IES Texture - The IES "Texture" used for the light profile. IES files are ASCII though Unreal represents them as textures, they are not image files.
