I have a parchment animation at singingdays.co.uk that is a rather large file of about 80mb which obviously is taking a long time to download. I have managed to compress it down to about 60mb using convert and decreasing the colourmap for all the images down to 256 colours, but would like to comp...

From what I'm reading, it looks like a ray tracer views a pixel as one color and computes that color using the ray starting in the center of that pixel. Yet a pixel has a width and a height. Do we ever use the actual square (now a day pixels are considered squares) that the pixel represents to c...