问题
I'm making a small game using the HTML5 canvas element. It works great, except that it has a scrolling background with obvious tearing happening in Firefox and Chromium browsers in Ubuntu. I'm pretty sure it's buffered because there isn't any of the flickering I'd expect; just tearing. Is there any way to work around this or time rendering to right after the last screen refresh?
回答1:
Currently there is no way to control the actual repainting of a canvas element(which if there was, could actually help in increasing performance I guess). So one can only hope that the browser actually does something intelligent, rather than screwing up like in your case.
I myself have quite some experience with the canvas element and know of its quirks. I ran into some kind of "repaint lag" several times by now, where obviously the actual numbers behind the scenes are correct and "smooth", but the graphics still have a somewhat "jumpy" behavior, which in fact is really annoying.
Only thing I can imagine that could have an effect in your case, is activating VSync in the driver settings of your Graphics Card.
If you'd like to provide a link to your game that might be helpful too, since I'm also running Ubuntu here.
来源：https://stackoverflow.com/questions/3664180/tearing-in-html5-canvas