DXX Raytracer is a fork of the DXX Retro project for Windows. DXX Raytracer uses modern raytracing techniques to update the graphics of the beloved retro game known as Descent.
Here's an example of the missing lights problem. This is the starting room of level 3 with the light debug view enabled. With the change, the room is brighter and the debug lines appear.
These code changes address the issues I reported on Discord: