[0.4.0] Shadow Warrior video interpolation capped at 60 FPS

[Nash]

SW has the early Demolition video interpolation issue where it's capped at 60 frames. Video looks choppy on my 144 hz monitor.

[Graf Zahl]

It still does? I already swapped out the interpolation code for the one from EDuke.

[Nash]

Oh, hmm... it does seem a little smoother now, yeah.

My misconception however came from testing Episode 2 of Shadow Warrior - the one where you start on a moving boat. It seems if you are standing on top of a moving polyobject, the view interpolation doesn't work...

[Graf Zahl]

Yes, I know, it's the same problem with the train at the end of the first level. Interpolation does not seem to work right if you are inside a sector that's moveable, even if it doesn't move.
That's also a problem in 60 fps, and got reported several times as "performance issue", which it clearly is not.

My suspicion is that when the sector moves the player (even by a distance of 0) it resets the interpolation each time,

[sinisterseed]

That's also a problem in 60 fps, and got reported several times as "performance issue"

Well it very much does feel like a slowdown, so...

[Graf Zahl]

It feels like running a 40 fps playsim uninterpolated at 60 fps. Thanks to the 3 tics in 2 frames issue it appears like crap. But there's definitely no performance loss, the game still runs at constant 60 fps for me.

[Graf Zahl]

The train thing just got fixed upstream. I'll merge this as soon as I find time for it, but it means this report can be closed.