Alpha channel in Inform?


I have the following problem. I try to show some images using Simple Graphics Window with an alpha channel. The thing is, the alpha channel works but the previous image isn’t cleared before showing the next one. This makes them stack on each other. I have no idea how to stop this to be honest. I am using Quixle for this.

Does anybody have an idea how to clear simple graphics window with an empty color? gluxle only seems to support rgb and not rgba :confused:

I would expect this to work: the default graphics drawing rule from Simple Graphical Window blanks the window before drawing the image. Do you see the same behaviour if you run the game from within Inform 7 as when you use Quixe? What OS are you using?