[Runtime Issue]: Z-ranges are incorrect (effects visible through terrain)

[JeodC]

Build Version

current

Operating System Environment

• [ ] Microsoft Windows (32-bit)
• [X] Microsoft Windows (64-bit)
• [ ] Mac OS X
• [ ] Linux (specify distribution and version below)

CPU Environment

• [ ] x86 (32-bit Intel/AMD)
• [X] x86_64 (64-bit Intel/AMD)
• [ ] ARM (32-bit)
• [ ] ARM64 (64-bit; sometimes called AArch64)
• [ ] Other (RISC V, PPC...)

Game Modes Affected

• [X] Single player
• [ ] Anarchy
• [ ] Hyper-Anarchy
• [ ] Robo-Anarchy
• [ ] Team Anarchy
• [ ] Capture the Flag
• [ ] Bounty
• [ ] Entropy
• [ ] Hoard
• [ ] Monsterball
• [ ] Cooperative

Game Environment

Level 7

Description

Playing around with render distance (see #338) made a bug more visible. Z-ranges are off for certain effects, causing them to be visible through terrain. Video below explains.

https://github.com/DescentDevelopers/Descent3/assets/47716344/975dd617-796b-4b61-b3d7-4cd75ce9311b

Regression Status

There is no regression--this appears to have always been around, but it is not present at the lowest render depth setting due to culling.

Steps to Reproduce

Tested with Level 7 - follow the guidebot to the first objective to disable the turrets, which will cause the blue electricity effects to appear.

[JeodC]

This is also not present in Piccu v1.0, likely because Piccu uses the older v1.4 opengl renderer whereas v1.5 introduced a newer version that was, as @InsanityBringer put it, incomplete.