I am creating an application to display (large) graphs, for example:
But I have run into some performance problems, even for a fairly low number of nodes on the scene graph (+- 2000 in the image above). The graph is built, step-by-step, by adding Circles and Paths to a StackPane. Both the circles and paths can be semi-transparant. For a low number of nodes, I'm getting a solid 60 FPS, but this lowers over time to about 5 FPS. As soon as I stop adding new nodes, the framerate shoots up to 60 FPS again. The framerate still drops even when all the nodes are outside the viewport.
My questions are:
\* Is calling Platform.runLater() about 2000 times/minute too much?
\* Could this simply be a problem with my graphics card? (I have an Intel HD Graphics 3000)
\* The JavaFX pulse logger says things like this, is there any significant information in this that I'm missing?
PULSE: 1287 [163ms:321ms]
T14 (0 +0ms): CSS Pass
T14 (0 +5ms): Layout Pass
T14 (6 +152ms): Waiting for previous rendering
T14 (158 +0ms): Copy state to render graph
T12 (159 +0ms): Dirty Opts Computed
T12 : Slow shape path for null
T12 (159 +160ms): Painted
T12 (319 +2ms): Presentable.present
T12 (321 +0ms): Finished Presenting Painter
Counters:
Cached region background image used: 14
NGRegion renderBackgroundShape slow path: 1
Nodes rendered: 1839
Nodes visited during render: 1840
Kind regards,
Youri