Further testing seems to reveal that it only seems to scale when it's in fullscreen, regardless of aspect ratio. In a window 1NSANE always renders at whatever resolution it's sized. It's probably an engine quirk with the game specifically.
Full sized screenshots (fullscreen):
Full size screenshots (1024x768 window)
On 5/25/2023 at 10:09 AM, Ross Scott said:-If the game doesn't support higher resolutions natively (like Dredd, Messiah), then dgvoodoo2 is required in order to bump up the resolution in order for gamescope to work?
Gamescope is just a canvas. The game itself just needs to be aware of how big the print surface actually is, which in the case of Dredd and Messiah they are not. But otherwise yes, that statement is accurate in practice.
On 5/25/2023 at 10:09 AM, Ross Scott said:-If the game does support higher resolutions (like 1NSANE, most modern titles), then dgvoodoo2 is not required to bump up the resolution and use gamescope or does it depend on the game?
Yes... both of those. Most modern games will scale up to whatever resolution they have available, though some may not because might be trying to be clever with windowed vs. fullscreen detection, etc..