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*New versions do not always maintain backwards compatibility.
*New versions do not always maintain backwards compatibility.
*Features can get removed, or changed.
*Features can get removed, or changed.
== Screen synchronization issue on 120 Hz screens ==
There is a serious synchronisation issue where the picture.present() method returns one frame too early. It can be detected by measuring the time between two consecutive present() calls returning:
<code>
picture1.present()
int t0 = clock.time();
picture2.present();
int t1 = clock.time();
int dt = t1-t0;
</code>