On Wed, 13 Oct 2021 23:59:40 GMT, Phil Race <p...@openjdk.org> wrote:
> On an external (non-retina) monitor JavaFX LCD text on macOS is painful on > the eyes. > Retina diminishes it rather than cures it. > > The problem is a mix of a couple of things > 1) CoreText no longer generates LCD glyphs (except perhaps if you change some > system settings at your own risk) > 2) Prism's LCD shader assumes it got LCD glyphs and makes sub-pixel > positioning adjustments that turn greyscale > glyphs into multi-coloured glyphs that weren't meant to be ... > > The fix here is to just disable LCD by default on macOS as is already done > (eg) on iOS > This ripples through to make everything use grey scale even if you asked for > the LCD (which you can't have) > It also means if you REALLY want it (and perhaps are tweaking those magical > settings) you can have it back > by just specifying -Dprism.lcdtext=on > > Also it means the pieces of support for this on macos are still there if > Apple ever bring it back (unlikely). > Not that much code would be removed anyway .. a fair amount of it is needed > for Windows and Linux. The fix itself is simple, but a second pair of eyes would be useful. ------------- PR: https://git.openjdk.java.net/jfx/pull/642
