JDK-8119936 : KeyStrokeMotion sample - symbol jerking during animation
  • Type: Bug
  • Component: javafx
  • Sub-Component: graphics
  • Affected Version: fx2.1
  • Priority: P4
  • Status: Resolved
  • Resolution: Duplicate
  • Submitted: 2012-03-11
  • Updated: 2015-06-17
  • Resolved: 2012-03-17
Related Reports
Duplicate :  
JDK-8102278 - Sub-pixel accurate rendering of Text for smooth animation
Description
Create new project from /Samples/JavaFX/KeyStrokeMotion

To improve visibility, decrease font size to circa 24 and make timeline length around 20-30 seconds.

You'll see how jerky motion is. 

It looks like symbols aligned with pixels array and smooth diagonal movement transformed to visible up, down, left, right steps.
Comments
When rendering text, we snap the rendering of each glyph to a pixel boundary. It will require a new feature to change this behavior, so RT-20449 has been filed to track this.
17-03-2012
Based on the description, asking Graphics to take a look. It looks like they are - running Ensemble - naivgating to Key Stroke Motion sample - navigating to the source code tab for this sample - generating a NetBeans project - running the generated project
12-03-2012