Myst 3 scene transitions mis-cropped

[xaeroverse]

As noted in #77, scene transitions seem to have proper fade animations, but only a portion of the scene gets zoomed-in and rendered, rather than the full scene zoomed-out. In the following demo video, it appears that the bottom-left corner is the focused portion:

screenrecorder-20250908.mp4

If more information is needed, I'd be happy to provide.

Details:

ScummVM Version: 686cdd1-2.10.0git (Sep 8, 2025 08:46:16 with Clang 11.0.5)
Game version: DVD
Platform: Android RetroArch v1.21.0 54af661d95