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  JOGL + Overlay + Performance Hit  (Read 1719 times)
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Offline Zoomby

Junior Newbie





« Posted 2007-11-13 08:45:15 »

Hi,

I'm trying to use the Overlay class to draw some 2D grahpics over my 3D scene. Unfortunately I'm getting a CPU hit of about 30! percent, even if I only draw some simple rectangles. If I remove the "drawAll()" call everything is fine. Please see the test code below. Can someone give me a hint how to optimize it?

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gl.glMatrixMode(GL.GL_MODELVIEW);
    gl.glLoadIdentity();
   
       
   
   Overlay ol = new Overlay(gld);
   Graphics2D g = ol.createGraphics();

   g.setPaint(new Color(255,255,0));  
   g.fillRect(0,0,10,10);
   
   g.setPaint(new Color(0,255,0));  
   g.fillRect(10,10,40,40);


   
    glu.gluLookAt(posx,posy,posz,  posx+dirx,posy+diry,posz+dirz,  0.0,1.0,0.0);
   gl.glDrawArrays (GL.GL_TRIANGLES,0,numQuads);
   
   
   ol.markDirty(0, 0, 100, 100);
    ol.drawAll();
 
 

    gl.glFlush();

Offline Zoomby

Junior Newbie





« Reply #1 - Posted 2007-11-13 09:10:53 »

Hi,

I figured it out myself. The bottleneck was not "drawAll()" but the constructor of Overlay.  Roll Eyes  Roll Eyes

Bye
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