Gray screen with deep zoom

[munrocket]

For now you have limit in zooming (~10^15) because you use javascript 64-bit float. But you can overcome the limit by using floating point expansion technique that is pretty fast. For example you can use double.js or bigfloat library.

[cslarsen]

That is true, but I don't have time to fix it myself. I tried something like that, but was not satisfied with the speed. Perhaps change to arbitrary precision when we reach a certain limit or something.