So, the scanlines spilled over the border with both OLD and NEW tileimage? And the red zone didn't spill over... just the scanlines?
If so, then the last option is that could be it is the SetAlpha on the scanlines. Judging by the main menu screen, SetScale could also be messing with the viewport, so maybe it's any transform?
I've updated the test app if you're still willing to test. =)
If that doesn't work... well, I guess I'll have to change my rendering routines, but that probably won't happen until after the release.
If so, then the last option is that could be it is the SetAlpha on the scanlines. Judging by the main menu screen, SetScale could also be messing with the viewport, so maybe it's any transform?
I've updated the test app if you're still willing to test. =)
If that doesn't work... well, I guess I'll have to change my rendering routines, but that probably won't happen until after the release.