Swing和AWT GLCanvas闪烁/闪烁

Question

我使用Swing创建组件，使用GLCanvas (com.jogamp.opengl.awt.GLCanvas)创建窗口。

问题是下一个问题。

在init状态下，所有操作都很好，但是当我拖动窗口调整其大小时，包含我的JPanel的GLCanvas开始闪烁/闪烁。

阅读其他主题后，我尝试使用System.setProperty("sun.awt.noerasebackground"，标志“true”)，但它不起作用。

从GLCanvas my类扩展的重写方法Init。

public void init(GLAutoDrawable drawable) {

    this.drawable=drawable;
    gl = drawable.getGL().getGL2();
    //glu = new GLU();
    //glut = new GLUT();
    gl.setSwapInterval(1);
    gl.glClearColor(getClearColor().getRed(),getClearColor().getGreen(),getClearColor().getBlue(), 1.0f);
//*******************************
SetDefaultGLproperty();
System.setProperty("sun.awt.noerasebackground", "true");
System.out.println("PROPERTY ACTIVATE");
//SetDefaultLigthModel();

}

显示方法：

public void display(GLAutoDrawable drawable) {
  try{  
    //System.out.println("display de jcadcanvas");
    //gestion de la vista
    if (Scene.view.isSelectionMode || Scene.view.isMouseOver){
        //System.out.println("entra");
     startPicking( Scene.view.curX,Scene.view.curY);
     gl.glMultMatrixf(Scene.view.trackball.getRotMatrix(), 0);
     if (Scene!=null) Scene.DrawSceneInSelectionMode(gl);
     int r=endPicking(gl);
    if (r!=0) {
       if (Scene.view.isSelectionMode) {
           //System.out.println("select");
             Scene.selectionModel.addSelectedEntity(r);
             //isSelectionMode=false;
               } else
       if (Scene.view.isMouseOver) {
             Scene.selectionModel.setMouseOverEntity(r);
             //isMouseOver=false;
               }
     }

     //isMouseOver=false;
    }
    Scene.view.isSelectionMode=false;
     Scene.view.isMouseOver=false;
    //else { //*/*************************************



    if (Scene.view.fitView) {
        ZoomAll();
        Scene.view.fitView=false;
    } else
        SetOrthoProjection(Scene.view.leftViewVolume, Scene.view.rightViewVolume, Scene.view.bottomViewVolume, Scene.view.topViewVolume, Scene.view.nearViewVolume, Scene.view.farViewVolume);
    //System.out.println(Scene.leftViewVolume+" "+Scene.rightViewVolume+" "+Scene.bottomViewVolume+" "+ Scene.topViewVolume+" "+ Scene.nearViewVolume+" "+ Scene.farViewVolume);
     gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);

    if (Scene.view.isZoomBox) DrawZoomBox() ;  ///caja de zoom
    gl.glMultMatrixf(Scene.view.trackball.getRotMatrix(), 0);
 /*
   if (!Scene.getSelectedNode().isEmpty()){
    JAbstractEntity centro=(JAbstractEntity)Scene.getSelectedNode().get(0);
    JPoint p=centro.getCentroid();
    gl.glTranslated(-p.x, -p.y,-p.z);
   }
  * */
    if (isDrawaxes()) {
        DrawAxes(gl);
    }
    if (Scene!=null) Scene.DrawScene(gl);
    //}

  } catch(com.jogamp.opengl.GLException e){

  }catch(java.util.ConcurrentModificationException e){

  }

  if (save) save();
}

重塑方法：

public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
    //AQUI ESTA EL PROBLEMA DEL RESHAPE
    System.out.println(width+"entro"+height);
    double left = Scene.view.leftViewVolume;
    double right = Scene.view.rightViewVolume;
    double bottom = Scene.view.bottomViewVolume;
    double top = Scene.view.topViewVolume;
    if (width != aWidth) {
        System.out.println("ancho");
        double magnitud = ((Scene.view.rightViewVolume - Scene.view.leftViewVolume) * (double) height) / (double) width;
        magnitud = ((Scene.view.topViewVolume - Scene.view.bottomViewVolume) - magnitud) / 2.0;
        left = Scene.view.leftViewVolume;
        right = Scene.view.rightViewVolume;
        //bottom=topViewVolume-magnitud;
        bottom = Scene.view.bottomViewVolume + magnitud;
        top = Scene.view.topViewVolume - magnitud;
    } else if (height != aHeight) {
            System.out.println("alto");
        double magnitud = ((Scene.view.topViewVolume - Scene.view.bottomViewVolume) * (double) width) / (double) height;
        magnitud = ((Scene.view.rightViewVolume - Scene.view.leftViewVolume) - magnitud) / 2.0;
        left = Scene.view.leftViewVolume + magnitud;
        right = Scene.view.rightViewVolume - magnitud;
        bottom = Scene.view.bottomViewVolume;
        top = Scene.view.topViewVolume;
    }

    aHeight = height;
    aWidth = width;
    //System.out.println (aHeight+" "+aWidth);
    //System.out.println (width +" "+height);
    gl.glViewport(0, 0, width, height);
    SetOrthoProjectionIsotropic(left, right, bottom, top, Scene.view.nearViewVolume, Scene.view.farViewVolume);
    //fitView=true;
}

有人知道解决办法吗？

耽误您时间，实在对不起

我在JOGAMP库中使用GL2

Answer 1

如果可能的话，您应该在命令行中设置属性sun.awt.noerasebackground。但是，由于AWT中的回归，这个解决方案不再起作用，有一个针对JOGL的错误报告，但是它不能在JOGL：bug.cgi?id=1182中修复。

您可以尝试将GLCanvas替换为GLJPanel，但我不确定您是否会获得更好的结果。

请对您的硬件、操作系统、Java版本、JOGL版本(2.3.2?)、.

顺便说一句，如果您想避免捕获一些GLU.createGLU实例，请将glu = new ()替换为GLU.createGLU(gl)。