>>368215472
>Blacklights used by DPS have a performance penalty as it's doing real time light calculations
actually, DPS lights are "vertex lights", which means they have basically zero performance impact. they don't add any drawcalls and they are extremely cheap to use in shaders.
as for "so why doesn't everyone just use vertex lights instead of laggy realtime lights?", that's because not all shaders support vertex lights properly, you can only have up to 4 touching a single object, and they're low-precision because they are calculated per vertex rather than per pixel.