Black screen when use boundbox

Troubleshooting General Help
1

At end of Button constructor, i have a set bound box, that run bad, because with this line decomenteds i only can see a blank screen (really, see the buttons only 0.5 sec aprox only) later all black,

why? and why also in other no-buttons objects as bckgQuad of MainMenuState?

Thanks



MainMenuState.java

package gamestates;

import ui.Button;

import com.jme.image.Texture;
import com.jme.input.MouseInput;
import com.jme.math.Vector3f;
import com.jme.renderer.Renderer;
import com.jme.scene.Node;
import com.jme.scene.shape.Quad;
import com.jme.scene.state.BlendState;
import com.jme.scene.state.RenderState;
import com.jme.scene.state.TextureState;
import com.jme.system.DisplaySystem;
import com.jme.util.TextureManager;
import com.jmex.game.state.BasicGameState;


public class MainMenuState extends BasicGameState {

   private Quad bckgQuad;
   private Button newButton;
   private Button quitButton;
   private Button creditsButton;
   
   public MainMenuState() {
      super("mainMenuState");
      // Build our menu
      this.buildMenu();
      
   }

   private void buildMenu() {
      // Create BlendState
      DisplaySystem display = DisplaySystem.getDisplaySystem();
      BlendState bs = display.getRenderer().createBlendState();
      bs.setBlendEnabled(true);
      bs.setSourceFunction(BlendState.SourceFunction.SourceAlpha );
      bs.setDestinationFunction(BlendState.DestinationFunction.OneMinusSourceAlpha);
      
      // Create background quad
      Texture t = TextureManager.loadTexture(
                MainMenuState.class.getClassLoader().getResource("res/menu_bckg2.png"),
                Texture.MinificationFilter.Trilinear,
                Texture.MagnificationFilter.Bilinear);
      this.bckgQuad = new Quad("bckgQuad", 1024, 768);
      this.bckgQuad.setRenderQueueMode(Renderer.QUEUE_ORTHO); 
      this.bckgQuad.setLocalTranslation(512, 300, 0);
        TextureState ts = display.getRenderer().createTextureState();
        ts.setTexture(t);
        this.bckgQuad.setRenderState(ts);
       
      // Create buttons
      this.newButton = new Button("newButton", 256, 256, "res/new0.png", "res/new1.png");
      this.quitButton = new Button("quitButton", 256, 256, "res/quit0.png", "res/quit1.png");
      this.creditsButton = new Button("creditsButton", 256, 256, "res/credits0.png", "res/credits1.png");

      // Apply BlendState
      this.newButton.setRenderState(bs);
      this.quitButton.setRenderState(bs);
      this.creditsButton.setRenderState(bs);
      // Set position
      this.newButton.setLocalTranslation(860, 250, 0);
      this.quitButton.setLocalTranslation(600, 420, 0);
      this.creditsButton.setLocalTranslation(300, 170, 0);
        // Attach all
        this.getRootNode().attachChild(this.bckgQuad);
        this.getRootNode().attachChild(this.newButton);
        this.getRootNode().attachChild(this.quitButton);
        this.getRootNode().attachChild(this.creditsButton);
        this.getRootNode().updateRenderState();
   }
   
   public void update(float tpf) {
      super.update(tpf);
      System.out.println("UPD");
      }
      
}





Button.java

package ui;

import com.jme.renderer.Renderer;
import com.jme.scene.shape.Quad;
import com.jme.scene.state.RenderState;
import com.jme.scene.state.TextureState;
import com.jme.system.DisplaySystem;
import com.jme.util.TextureManager;
import com.jme.bounding.BoundingBox;
import com.jme.image.Texture;


public class Button extends Quad {

   private Texture idleTexture;
   private Texture focusTexture;
   private boolean focus;
   
   public Button(String name, int width, int height,
               String idleTextureFn, String focusTextureFn) {
      super(name, width, height);
      DisplaySystem display = DisplaySystem.getDisplaySystem();
      this.setRenderQueueMode(Renderer.QUEUE_ORTHO);
      // Load TextureStates and Textures
      this.idleTexture = TextureManager.loadTexture(
                Button.class.getClassLoader().getResource(idleTextureFn),
                Texture.MinificationFilter.BilinearNearestMipMap,
                Texture.MagnificationFilter.Bilinear);
      this.focusTexture = TextureManager.loadTexture(
            Button.class.getClassLoader().getResource(focusTextureFn),
                Texture.MinificationFilter.BilinearNearestMipMap,
                Texture.MagnificationFilter.Bilinear);
        TextureState ts = display.getRenderer().createTextureState();
        this.setRenderState(ts);
        // BoundingBox for collition
        //this.setModelBound(new BoundingBox());
        //this.updateModelBound();
        this.setFocus(true);
   }
   
   public void setFocus(boolean value) {
      if (value == true) {
         TextureState ts = this.getRenderState(RenderState.RS_TEXTURE);
         ts.setTexture(this.focusTexture);
      } else if (value == false) {
         TextureState ts = this.getRenderState(RenderState.RS_TEXTURE);
         ts.setTexture(this.idleTexture);
      }
      this.focus = value;
      this.updateRenderState();
   }
   
}

2

try to set button.CullHint(CullHint.Never);

I guess culling buttons is never neccesairy in your case, as the need to be always visible?

3

i try use this



        this.setCullHint(CullHint.Never);





over buttons, and also over my background quad, without success. Need update?

4

i copy/pasted your code, used a simple jpg img and it seems to work correctly here.



you are not disabling the gamestate somehow accidently?