Before you start, please note that english Is'nt my mother tongue. Thus, there are certainly some mistakes and nonsenses in this tutorial. I did my best, but st...
Just putting this out there in case someone is struggling to get Matriax's plugin to work properly and is reading the comments..
Setting light to mouse coordinates wasn't working for me at first, so here's what I did to get it working as intended.
Project Settings:
-> Use High-DPI Display: NO
In the events - Set X and Y resolution to WindowWidth and WindowHeight.
Like this:
Every Tick -> Maps_Obj_Family -> Set Effect Parameter:
Parameter Number 44, Value: WindowWidth
Parameter Number 55, Value: WindowHeight
Now you can toggle fullscreen and use different scales without a problem.