On Sat, 5 Dec 2020 11:33:46 GMT, Frederic Thevenet <ftheve...@openjdk.org> wrote:
>> I hope to take a look at this, along with other pending reviews, early next >> week. There is still some time to get this into 16 if we can find a robust >> fix. > >> >> >> I hope to take a look at this, along with other pending reviews, early next >> week. There is still some time to get this into 16 if we can find a robust >> fix. > > That's great news, thanks! I spent a bit of time looking at this. I think the root cause of the problem is in ScrollPane itself. It is attempting to layout its children by doing a snap to pixel (meaning that the final scaled translation should be an integer value), but it is failing to do so. This is mostly not a problem when caching is disabled, since our text rendering does sub-pixel antialiasing that looks crisp even at non-integer boundaries. However, translating an already-rendered image by a non-integer boundary will cause the blurriness we are seeing. There is another issue with the Y translation which isn't 0 even when not using a ScrollPane. I'll continue looking at this in the coming week. ------------- PR: https://git.openjdk.java.net/jfx/pull/308
