This is a Tool-Assisted Speedrun!
Runner: Zero-Master
Date: 2022-09-01
IWAD: Plutonia.wad
Category: UV-Speed TAS
Map: 32 (Go 2 It)
Source Port: XDRE v2.21/DSDA-Doom v0.24.3
Time: 0:25.43
Description:
It gets increasingly more difficult to find new tricks for the IWADs as fewer of them exist. I don't know if there's much left now, but who knows.
A void glide usually works by reaching the speed limit of 30 units per tic and then just barely getting over 2 units increase in speed so that the 32x32 unit doomguy will no longer overlap with the wall, assuming the wall is aligned with an axis.
In this case the wall is not even close to being aligned, it's actually at a 30 degree angle making the wall extend 16 units further away from the corner vertex in the y-direction. So the wall I want to go through requires a speed of over 48 units moved in a single tic! This void glide can also not be done without the assistance of not just one, but two monsters to block movement positions.
Once that is done the idea is to get back in bounds at the exit area, to do this one has to run around the keyed exit doors which extend about 2000 units into the void. One major problem remains, which is the angle of the walls inside the exit room which are at 135 degrees. In order to get back in bounds the angle is usually required to be smaller, preferably just over 90 degrees, but anything between 90 and 135 degrees would do. When the angle is exactly 135 degrees it becomes impossible, with exception of one specific direction which is to go through an x-axis aligned wall by going south to north and east to west. Like the void glide however this also requires something to block your movement, so we would need a monster to somehow get into the void with us and travel to that location.
So the 2nd trick here is to kill a pain elemental close to the wall, this will cause the lost soul to be spawned outside of the wall and from there one just need to guide it to the correct spot which makes it possible to go back in bounds. Another trick used here is to clip plasma projectiles into the wall overlapping with the pain elemental, but the pain elemental could be killed from the in bounds instead.
Finally then once the lost soul is positioned correctly it's more brute force to get the required momentum and positioning to go back in bounds and exit.
Could have grabbed the BFG at the start and used it to kill the pain elemental quicker, a time under 20 seconds is probably possible with some more effort. Previous TAS record is 43 seconds though so a 18 second improvement nearly cut it in half.