https://wccftech.com/the-witcher-3-mod-true-fires-massively-improves-fires-lights-and-shadows/

A new The Witcher 3 mod called 'True Fires' was released last week on Nexus Mods by creator sw3dg1n.

The mod's goal is to improve all aspects of fires, including fires themselves, meshes of fire sources, light sources, and shadows.