GIF, testing on 4K
Added 2020-09-17 13:54:12 +0000 UTCI try to make new animation on new format 4K resolution.
My 6 years old MacBook that has 16GB ram can preview for only 90 frames on 4K.
It is so hard.
I consider to get new Mac that has more ram.
*this GIF isn't 4K.
