I'm having this same problem in 2024 on Windows 10 with the GOG version. I additionally see rainbow colors over the shadows as well. I've played about 30 hours and this issue just randomly started popping up after beginning the Missing Delivery quest line in case that has anything to do with it due to some animations that occur relating to it. Has anyone figured any sort of fix out?
Here is what I've tried so far:
- Restarting my computer
- Changing from Direct 3D to Software (Doing so simply crashes the game for me when loading into a save)
- Checking that my graphics drivers were up to date
- Turning off compatibility mode
- Trying compatibility mode for Windows 95, Windows 98/Windows Me, Windows XP Service Pack 2, Windows XP Service Pack 3, Windows Vista, Windows Vista Service Pack 1, Windows Vista Service Pack 2, Windows 7, and Windows 8 which is every compatibility mode that was available to me
- When running in compatibility mode for Windows XP Service Pack 2 and 3, Windows Vista, Windows Vista Service Pack 1 and 2, Windows 7, and Windows 8 it resulted in only the standard dark shadows such as those seen in OP's image when entering the cave related to Missing Delivery, but seemed to take away the rainbow
colors that were going over the shadows.
- Enabling alphabit, disabling alphabit, enabling smoothing, disabling smoothing in configtool.exe and every combination of one on/off, both on/off etc
- Disabling fullscreen optimizations
- Running the program as an administrator
- Disabling all high DPI settings
- Trying the 4GB Patch found here
https://ntcore.com/4gb-patch/- Setting performance options for Windows 10 to “Adjust for Best Performance”
- Installed and set up dgVoodoo 2 using this guide
https://steamcommunity.com/app/214170/discussions/0/3414307711409562985