Motion vision should not be rendered behind solid surfaces

[Muffin-Dono]

Build Info

20250824_bebf05c

Description

Motion vision is rendered through solid surfaces in some instances, see screenshot of bug in skyline.

To Reproduce

1. Load Skyline map
2. Enable motion vision and view a moving player hiding behind a solid surface, specifically in the same spot as the uploaded image

Expected behavior

Motion vision should not flag players or parts of players hiding behind solid surfaces

Actual behavior

No response

Operating System

• Windows
• Linux

Version/Distro

10

Machine's CPU

No response

Machine's GPU

No response

GPU's driver

No response

Build's compiler

No response

Additional context and Screenshots

No response

[DESTROYGIRL]

This looks like an issue caused by prop fade. The model is likely at the start of the transition and some alpha sorting thing decides that a model in MV should get drawn on top. My best guess

[AdamTadeusz]

This might be the culprit. It seems like this is done for artistic reasons, where it allows front facing elements behind a player like their gun if they are facing away from us to still render when the player is cloaked, through the body of the player. It should be noted that ognt does this as well. I don't know if its achieved in the same way or not, but the motion vision models will look slightly different with it removed.