About this demo...
If you uncheck the "Use Multisampling" checkbox, you will see
that the edges of the disks now have a more jagged appearance.
The effect is subtle.
It will be more obvious if you increase the magnificaion of
the web page.
The effect might be less visible when animation is turned on,
but again, the effect is very clear — and interesting — on a highly magnified
web page.
Multisampling is a kind of antialiasing. Without multisampling,
WebGPU gets a color for a pixel by evaluating the fragment shader
at one point in that pixel. With multitasking, it evaluates
the fragment shader at several points in the pixel and averages
the results. This can cut down on "jaggies" and give a smoother
appearance.
