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laptop_chromebook broken at small optical size

Open foxt opened this issue 2 years ago • 4 comments

https://user-images.githubusercontent.com/12257112/180453755-f43c601c-f242-425e-b8d5-86591c3df291.mov

Screen is slanted & has broken weight scaling

foxt avatar Jul 22 '22 13:07 foxt

Wow, that is pretty awful. Luckily it is quite easy to fix.

(In case anybody cares about the technical details, this looks like a common kind of bug: the masters are all OK, except that the startpoint of the outer contour differs between masters, causing problems in interpolation and vector addition that play out when more than one axis is at non-default values. Make startpoints consistent in the non-synthetic masters and this will go away. Some of the synthetic masters will display/embody the problem, but are not the ultimate source of it.)

tphinney avatar Jul 22 '22 14:07 tphinney

My supposition about the nature of the problem was correct. I fixed it for the font build I just completed… will close after the fix is out there.

tphinney avatar Jul 23 '22 02:07 tphinney

As it turned out, my initial fix was about 90%. The big part is better, but there is a less obvious problem with the little contour of the notch or hinge or whatever it is at the bottom of the screen of the chromebook. Fixing now for this coming week’s build.

tphinney avatar Jul 31 '22 22:07 tphinney

Addendum: Both these problems would only be an issue at optical sizes in between 20 px and 24 px. Either standard size was fine, it was just the interpolations that were bad. Fix is checked in for next build.

tphinney avatar Aug 01 '22 04:08 tphinney