Smh guys, you're new to gta sa? That tunnel is made on purpose like that, it has to be dark af with absolute no lighting. Also it's a railway, for trains, not for cars. I know it's a open world map, but I see still no reason to drive there even in a duel or magazine run. Btw everywhere else the map is bright enough to see everything even in night time. Also check your MTA Settings -> Video -> Brightness, or check your monitor settings.
PS: Before you reply with "Why are you so mad?" - I am not mad, I'm just trying to make you clear, that your arguments aren't a good reason to add them. -> Not good enough to remove other existing shaders.
I'm not totally against it, but most users wouldn't be able to use it without lags anyway.
Last idea I would have, is to add the per-pixel lighting shader but to gray-out the other shader options, so you can't activate them at the same time. Also add a little warning message (for all language options) that it might cause lags.
PS: Before you reply with "Why are you so mad?" - I am not mad, I'm just trying to make you clear, that your arguments aren't a good reason to add them. -> Not good enough to remove other existing shaders.
I'm not totally against it, but most users wouldn't be able to use it without lags anyway.
Last idea I would have, is to add the per-pixel lighting shader but to gray-out the other shader options, so you can't activate them at the same time. Also add a little warning message (for all language options) that it might cause lags.
///