I am up to the episode where Casey implements a radial menu. However I am having an issue with my mouse coordinates.
Due to performance, I have had to reduce the size of my back buffer to half what Casey is usin (960 x 540). That means that whilst the mouse cursor works fine when windowed, as soon as I go full screen the mouse cursor if offset (as it now extends further to the right).
I've skipped ahead to where Casey unprojects the mouse cursor however that doesn't really solve my issue.
Can anyone explain how I can translate the mouse coordinates so it works fullscreen with a small buffer size?