Baseline (Widescreen) Solution & Issues
Download this ObsCure multimonitor FOV fix 1.0.0 made by killer-m and place it in the ObsCure's root folder (the same folder where "Obscure.exe" is).
It's a FOV and aspect ratio fix that works automatically for every resolution, multi-monitor setup or aspect ratio.
The "d3d8.dll" file isn't necessary for this fix to work as it's just a DirectX 8 to DirectX 9 wrapper (ReShade/SweetFX users should not place this file).
You can edit the file "main.patch" located in the "scripts" folder with any text editor if you want to make changes.
If you want to make the FMVs to fill the screen(s), just add "//" (no quotes) before the last two HEX lines below "#patch [Lock FMV to 4/3 aspect]" (not recommended on multi-monitor setups).
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Eyefinity / Surround Specific Solution & Issues
4k UHD Specific Solution & Issues