How to create a 3D bridge in vanilla Doom

IMPORTANT NOTE: Forgot to mention at 4:48 to hold Ctrl while dragging the self-referencing sector over the bridge so the lines cross without creating a bunch of vertices.

Someone on Doomworld asked about this, so I thought to create this video. First of all sorry about the blurry sections - those are screens that came out really small for some reason. Also I made a mistake at one point and tagged the lines of the second bridge with 1 instead of the sector (although I fix this in the video). Oddly enough, I've never encountered a nodesbuilder issue while making a 3D bridge for vanilla Doom until I created this simple map for this video, lol.

All that aside, not a perfect video but it took forever to render and I'm ready for bed.