Hints for CS543 Project 5 Some students in the past have just shown a single example of each transform, often 1 transform at a time. I'd rather see an entire scene with multiple instances of objects: some translated, some scaled, and some rotated. Also, make sure your objects are defined in a world coordinate system that has a different range from the screen coordinates, i.e., the origin is not necessarily at (0.0, 0.0, 0.0). This will confirm that your window to viewport conversion is acting correctly.