nope, its still blocky

this is what it looks like screenshotted off my big non-retina monitor:

maybe check Qt::AA_UseHighDpiPixmaps (compare the QPainter part of https://blog.qt.io/blog/2013/04/25/retina-display-support-for-mac-os-ios-and-x11/)

I thought those are for icons and images.

but it does say further down "Font sizes can be kept as-is, and produce similarly-sized (but crisp) text on high-dpi displays. Font pixel sizes are device-independent pixel sizes. You never get tiny text on high-dpi displays."

but this is drawing text with QPainter, not what the static text is (which already worked fine)

I tried adding:

Info.plist

<key>NSHighResolutionCapable</key>
<string>True</string>

interface.cpp

    qApp->setAttribute(Qt::AA_UseHighDpiPixmaps);

but it didn't change anything. it is QcCollider that is the qApp, right ?

I'm pretty sure that switch is just for the icons because they could display badly. everything else is automatic scaling.