

Note: Increasing the brightness of emergency lights also effect other lights, for example roof advertisements on taxis. Standalone modifications like Improved Emergency Lights are also available.

Many graphics mods include settings for bright emergency lights.

Now, to increase the brightness of emergency lights, it is necessary to modify the visualsettings.dat file. GTA used to support shader properties to increase the brightness of emissive materials, however, this feature was removed (possibly by accident) in a patch a short while after the PC release. The game then brightens these textures and applies a bloom affect based on the colors used in the texture. They are mapped to colored textures that support transparency. Models for emergency light emissive objects have to use the vehicle_lightsemissive shader (more information in our Materials and Shaders guide).
