Add support and write example for hidpi screens

Question

Add support and write example for hidpi screens

jedahan opened this issue 8 years ago · 5 comments

jedahan commented 8 years ago

I ported a quil sketch to clojure2d, and noticed the fonts are a lot fuzzier/hard to read:

quil

clojure2d

Wondering how to make it sharper / render at 2x the resolution.

Source is https://github.com/jedahan/calendar/blob/clojure2d/src/calendar.clj

Answer 1 · 2017-12-25T20:53:33.000Z

This works, but I feel like its hacky?

jedahan/calendar@a1d8e1f

Answer 2 · 2017-12-27T23:16:13.000Z

I checked processing implementation of pixelDensity() function. It does the following:

creates canvas twice bigger
calls scale(pixelDensity) to have proper virtual size of canvas

You can make the same. Scaling (interpolation) with :high (or :highest) rendering hints is bicubic.

Answer 3 · 2017-12-28T22:16:10.000Z

trying to figure out why result is uglier in clojure2d...

Answer 4 · 2017-12-29T19:17:04.000Z

@tsulej I got very close to the same quality with https://github.com/jedahan/calendar - check it out, I think rendering at 2x, setting font sizes to 2x, and then window to '1x' looks a lot sharper

Answer 5 · 2018-01-05T11:38:42.000Z

Found a bug related to jframe/awt.canvas creation... nasty. Size of jframe panel was 10pixels bigger than expected. That's why everything wasn't sharp. Everything was scaled up. Today's snapshot fix it.