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Shall we keep this issue open for the "bobble wobble" ?

I have verified this finding, somewhat by accident. I created a new texture (which has other issues) that happens to have a very clearly delineated bottom edge. Using it in...

There's another location in the code where a 4/3 crops up in floor rendering when switching to FS mode. I think this may be another place we need to change...

I did experiment but it seems that wasn't the multiplier I was looking for.

That's a fair suggestion. I think I'll fork my mod repo and start building levels to solely test such things. I can see the need for checkerboard wall and floor...

Actually the original swimming problem, or something very much like it seems to still be happening when you use sidestepping and is not present at 2/3 size.

I have made a test level to help debug these types of issues. See: https://youtu.be/ZbpF36GXtfM Other things noticed from this are the generally sloppy sampling, which we already knew about,...

An update on the "bobble wobble" aspect. Careful frame by frame investigation of the walking behaviour in the new test levels reveals that the issue is caused by the fact...

I will. I've been a bit snowed under lately, hence the lack of useful output!

I think it's time to pick this one up.