Z-depth calculation errors on Nightfire

[gir489returns]

Title

https://xemu.app/titles/45410026/

NTSC Ripped + Trainer I found back in the day. (I Can upload the ISO if required)

Bug Description

https://youtu.be/xav73cR3JhI

Expected Behavior

The floor should not be see-through.

xemu Version

0.6.2-90-g6f507c80af

iND BiOS.

System Information

OS: Windows 10 20H1
CPU: i7 7700K @ 4.20 Ghrtz (Blaze It)
GPU: Nvidia GTX 1080 Ti
GPU Driver: Auto updated latest from whatever Nvidia keeps bugging me to install.

Additional Context

Works well and MP is great. Lots of fun meme-ories came flooding back when I tested this. You guys are doing amazing work. Keep it up!

[gir489returns]

https://www.youtube.com/watch?v=zkcc0tL4uy0

Full test footage recorded with some bots. To be frank, I didn't even notice the wall clipping issue until I reviewed the footage.

[Triticum0]

This also affect Bionicals in the same way