martin@minster.UUCP (martin) (08/09/86)
I have also been very pleased with tracer, and have displayed several pictures on an Apple Laserwriter. They look even better with some simple anti-aliasing! However, does anyone know what causes the glitches in the image of the floor? I find that the 12th and 13th horizontal (across the picture) lines (counting from the 1st, at the front) are missing, and some lines appear to be added further back (just before lines away from the view point, are lost in the aliasing noise). I've looked at the source, and can't see anything wrong, so suspect some sort of rounding error, or that it is just another form of aliasing. PS Has anyone else paused to wonder how many machine instructions have been executed (worldwide) to execute this program? PPS The PS is rhetorical!