Example custom render node for JavaFX 2.2

ExampleCustomPGNode.java

package org.dejay.javafx.example;

import javafx.animation.Transition;
import javafx.application.Application;
import javafx.collections.ObservableList;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.Region;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import javafx.util.Duration;

import com.sun.javafx.geom.transform.Affine2D;
import com.sun.javafx.scene.DirtyBits;
import com.sun.javafx.sg.PGNode;
import com.sun.javafx.sg.prism.NGRegion;
import com.sun.prism.Graphics;
import com.sun.prism.paint.Color;

public class ExampleCustomPGNode extends Application {

	@Override
	public void start(Stage stage) throws Exception {
		
		final CustomNode customNode = new CustomNode();
		final Label label = new Label("Hello World");
		label.setFont(new Font("Arial", 40));
		customNode.getChildren().add(label);
		stage.setScene(new Scene(customNode));
		stage.show();
	}
	
	public static void main(String[] args) {
		launch(args);
	}
	
	
	
	// custom node that creates the custom PGNode for rendering
	private static class CustomNode extends Region {

		private PGCustomNode pgNode;

		public CustomNode() {
			setCache(false);
			setPrefWidth(320);
			setPrefHeight(200);
		}
		
		@Override
		public ObservableList<Node> getChildren() {
			return super.getChildren();
		}
		
		@Override
		public PGNode impl_createPGNode() {
			pgNode = new PGCustomNode();
			
			// bind this to an fps property
			double framerate = 60;
			new Transition(framerate) {
				{
					setCycleDuration(Duration.INDEFINITE);
				}
				@Override
				protected void interpolate(double frac) {
					impl_markDirty(DirtyBits.NODE_CONTENTS);
				}
			}.play();
			
			return pgNode;
		}
		
		
		// custom PG render node that is used in the prism render thread 
		private class PGCustomNode extends NGRegion {
			
			@Override
			protected void renderContent(Graphics graphics) {
				super.renderContent(graphics);

				// you are in the rendering thread here
				// under OS X or linux, you can call openGL commands here
				double rot = System.nanoTime() * 1e-9;
				double w = getWidth() / 2; 
				double h = getHeight() / 2;
				
				Affine2D t = new Affine2D();
				t.setToTranslation(w / 2, h / 2);
				t.rotate(rot);
				graphics.setTransform(t);
				graphics.setPaint(Color.BLACK);
				graphics.drawEllipse(0, 0, 100, 100);
				graphics.setPaint(Color.BLUE);
				graphics.fillRect(-100, -20, 100, 20);
				graphics.setPaint(Color.BLACK);
				graphics.drawRect(-100, -20, 100, 20);
			}
		}
	}
}

Glad it helped you :)