Fake-3D Room Effect

A simple effect that uses textured quads to render a 3D-looking room, useful to make pre-rendered backgrounds but works in realtime; by moving the room object around, a sense of shifting perspective can be achieved. No knowledge about 3D is required to use this.

Easy to customize: the textures for all five sides of the room can be changed independently, and since they are sprites, you can even animate them, to e.g. add in a lava floor.

Includes the general quad drawing script and two bilinear interpolation scripts.

Source code available both as a GM:Studio project and as an extension to easily add to an existing project!