Residue Processing is one of the real marvels of Black Mesa: Source, I have to say. I badmouth it for circumventing the vat jumping puzzles, but the original Residue Processing really was shit, no pun intended. I played through Black Mesa’s version and was never confused, lost or disorientated. I played through Residue Processing in the original Half-Life not an hour ago, and I STILL got completely lost in the fucking conveyor belt puzzle just because it’s so poorly designed.
Well, and because this chapter, more than any other, just doesn’t look like anything. Well, it looks like Doom - a maze of unfamiliar textures that could mean anything at all, but at least Doom had a map. Half-Life does not.
What Black Mesa did with Residue Processing is nothing short of astounding. The added detail makes every location tangibly unique and immediately identifiable, which helps immeasurably in keeping track of where you are in relation to the level at large. Not only that, but the actual conveyor belt puzzle has been untangled and made nearly linear, so it’s next to impossible to get lost on it. You can “cheat” and go back on one conveyor that skips about half the section, but even then you’re not going in circles, just skipping head.
I’d forgotten how bad the original Residue Processing was, so my hat’s off to the Black Mesa team for making a river of shit into a great level.