Below is the email regarding the Tower Defender 'performance' issues. Someone did respond about a trick with the fonts which I think helped but there were still several problems.
Begin forwarded message: > From: Daniel Zwolenski <zon...@gmail.com> > Date: 3 January 2013 11:13:57 AM AEDT > To: "openjfx-dev@openjdk.java.net" <openjfx-dev@openjdk.java.net> > Subject: Canvas rendering issues / Text Transition rendering issues > > One of the goals of Richard's Tower Defender game is to test/showcase > rendering performance and smoothness. The game is still very very ugly and > basic but we have added some transitions and also included a Canvas > background and we are starting to see some serious rendering issues. > > Richard probably hasn't a chance to look at these much yet so he may have > more insight but it would be interesting to hear comments from others on what > may be causing these issues (e.g. code in our end or code in the JFX end) and > how to deal with them. > > There is an executable JAR of the (still very ugly game) at: > https://bytebucket.org/rbair/fx-games/wiki/release/defender-jfx.jar > > All the code is at: https://bitbucket.org/rbair/fx-games/src (I can narrow > down further to areas of interest if you need it - just ask). > > When the game first loads we show an animated 'introduction' screen that has > some basic Text transitions on it. This has some issues: > The first title text is very jittery as it zooms in > The tag line that fades in does a noticeable, sudden jump at the end from > what looks like a bolder font to a thin one (or anti-aliased or something). > The spinning text has a similar combination of the previous two issues > We have also added a Canvas as a background for the game in the 'grass' level > (the 'brick' level uses a Pane as a background) and it has resulted in all > sorts of odd problems. The canvas level has some pretty serious issues: > Towers (nodes) have some z-order issues when being placed before animations > start > Bad Guys (nodes) rendering outside of their parents clip bound's and then > tend to leave a tail behind them (i.e. the back-buffer is not cleared or > something) > Lots of flickering of Bad Guys when they are animating (again looks like > z-order issues) > Putting an overlayed light box with a translucent glass pane (click the 'New > Game' button) causes all sorts of extreme, weird flickering and clipping > problems > Note that this could all be related to how we're using regions or something > like that but even so it's pretty bad that we can make this happen even if we > wanted to. The 'bricks' level uses a pane as it's background and works a > treat with pretty much the exact same code. > > Cheers, > Dan > >
