3D spinning software rendered cube in 32 bit MS-DOS at 1024x768 256 color, frame rate is kind of slow, better at lower resolutions, but then it looks bad. Being slow is actually a good thing here as it allows you to notice performance improvements to the rasterization easier. (That said this is the older affine textured barycentric triangle code from the windows example modified to DOS) Code is messy, but hey it works DOS3D.ZIP compiled with WATCOM