Auto updating shaders..

gistfile1.txt

package mygame;

import com.jme3.app.SimpleApplication;
import com.jme3.asset.DesktopAssetManager;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;
import com.jme3.renderer.RenderManager;
import com.jme3.renderer.ViewPort;
import com.jme3.scene.Geometry;
import com.jme3.scene.Spatial;
import com.jme3.scene.control.AbstractControl;
import com.jme3.scene.shape.Box;
import com.jme3.system.AppSettings;

/**
 * test
 *
 * @author kwando
 */
public class Main extends SimpleApplication {

  public static void main(String[] args) {
    Main app = new Main();
    AppSettings settings = new AppSettings(true);
    settings.setResolution(1280, 720);
    settings.setVSync(true);
    settings.setSamples(16);

    app.setSettings(settings);
    app.setShowSettings(false);
    app.start();
  }
  private boolean recreate = true;
  private Material material;

  @Override
  public void simpleInitApp() {
    Box b = new Box(1, 1, 1);
    Geometry interpolatedBox = new Geometry("Box", b);
    setPauseOnLostFocus(false);
    flyCam.setDragToRotate(true);
    geom = new Geometry("", b);
    geom.setCullHint(Spatial.CullHint.Never);
    geom.updateModelBound();
    geom.updateGeometricState();
    geom.move(0, 0, 1);
    geom.addControl(new AbstractControl() {
      @Override
      protected void controlUpdate(float tpf) {
        spatial.rotate(0, 2 * tpf, 0);
      }

      @Override
      protected void controlRender(RenderManager rm, ViewPort vp) {
      }
    });
  }
  
  private Geometry geom;
  private float acc = 0;

  @Override
  public void simpleUpdate(float tpf) {
    acc += tpf;
    if (acc > 1) {
      acc -= 1;
      recreate = true;
    }
    geom.updateLogicalState(tpf);
  }

  @Override
  public void simpleRender(RenderManager rm) {
    geom.updateGeometricState();
    if (recreate) {
      ((DesktopAssetManager) assetManager).clearCache();
      material = new Material(assetManager, "MatDefs/Unshaded.j3md");
      material.setColor("Color", ColorRGBA.Red);
      geom.setMaterial(material);
      recreate = false;
    }

    rm.setCamera(cam, false);
    geom.updateGeometricState();

    try {
      rm.renderGeometry(geom);
    } catch (Exception ex) {
      recreate = true;
    }
  }
}