In 3.2.1, when attempting to draw into an FX2D PGraphics context which is not the main context as shown in this code:
PGraphics secondBuff;
void setup() {
size(400, 300, FX2D);
secondBuff = createGraphics(400, 300, FX2D);
}
void draw() {
background(100);
this.getGraphics().endDraw();
secondBuff.beginDraw();
secondBuff.strokeWeight(10);
secondBuff.stroke(255);
secondBuff.point(mouseX, mouseY);
secondBuff.endDraw();
this.getGraphics().beginDraw();
image(secondBuff, 0,0);
}
The following error is thrown:
java.lang.NullPointerException
at processing.javafx.PGraphicsFX2D.fillFromCalc(PGraphicsFX2D.java:1951)
at processing.core.PGraphics.fill(PGraphics.java:6669)
at processing.core.PGraphics.defaultSettings(PGraphics.java:963)
at processing.core.PGraphics.checkSettings(PGraphics.java:938)
at processing.javafx.PGraphicsFX2D.beginDraw(PGraphicsFX2D.java:147)
at sketch_160827a.draw(sketch_160827a.java:28)
at processing.core.PApplet.handleDraw(PApplet.java:2412)
at processing.javafx.PSurfaceFX$1.handle(PSurfaceFX.java:83)
at processing.javafx.PSurfaceFX$1.handle(PSurfaceFX.java:1)
at com.sun.scenario.animation.shared.TimelineClipCore.visitKeyFrame(TimelineClipCore.java:239)
at com.sun.scenario.animation.shared.TimelineClipCore.playTo(TimelineClipCore.java:197)
at javafx.animation.Timeline.impl_playTo(Timeline.java:176)
at javafx.animation.AnimationAccessorImpl.playTo(AnimationAccessorImpl.java:39)
at com.sun.scenario.animation.shared.InfiniteClipEnvelope.timePulse(InfiniteClipEnvelope.java:110)
at javafx.animation.Animation.impl_timePulse(Animation.java:1102)
at javafx.animation.Animation$1.lambda$timePulse$25(Animation.java:186)
at java.security.AccessController.doPrivileged(Native Method)
at javafx.animation.Animation$1.timePulse(Animation.java:185)
at com.sun.scenario.animation.AbstractMasterTimer.timePulseImpl(AbstractMasterTimer.java:344)
at com.sun.scenario.animation.AbstractMasterTimer$MainLoop.run(AbstractMasterTimer.java:267)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:506)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:490)
at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$404(QuantumToolkit.java:319)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)
handleDraw() called before finishing
Could not run the sketch (Target VM failed to initialize).
For more information, read revisions.txt and Help ? Troubleshooting.
In contrast, if the offscreen PGraphics context is specified as JAVA2D, things work as expected:
PGraphics secondBuff;
void setup() {
size(400, 300, FX2D);
secondBuff = createGraphics(400, 300, JAVA2D);
}
void draw() {
background(100);
this.getGraphics().endDraw();
secondBuff.beginDraw();
secondBuff.strokeWeight(10);
secondBuff.stroke(255);
secondBuff.point(mouseX, mouseY);
secondBuff.endDraw();
this.getGraphics().beginDraw();
image(secondBuff, 0,0);
}
Additionally (and I'm not sure if this should be filed as a separate issue), using an FX2D context as an offscreen buffer when the main context is anything other than FX2D results in a null pointer exception on the first line calling any of the FX2D context's draw functions. However, the IDE provides no stack trace when this happens.
`
In 3.2.1, when attempting to draw into an FX2D PGraphics context which is not the main context as shown in this code:
The following error is thrown:
In contrast, if the offscreen PGraphics context is specified as JAVA2D, things work as expected:
Additionally (and I'm not sure if this should be filed as a separate issue), using an FX2D context as an offscreen buffer when the main context is anything other than FX2D results in a null pointer exception on the first line calling any of the FX2D context's draw functions. However, the IDE provides no stack trace when this happens.
`