Hey there,

I have a problem using OPENGL2, controlP5 and Peasycam together.

The example controlp5withPeasycam doesn't work for OPENGL2.... it gives the following error:

ClassCastException: processing.opengl2.PGraphicsOpenGL2 cannot be cast to processing.core.PGraphics3D

Any ideas??

Here the code:

1. 
   
   /**
    * ControlP5 with PeasyCam support. tested with peasy 0.8.2
    *
    * by jeffg 2009
    * http://processing.org/discourse/yabb2/YaBB.pl?num=1234988194/30#30
    */
    
   import peasy.*;
   import controlP5.*;
   import processing.opengl2.*;
   
   PeasyCam cam;
   ControlP5 controlP5;
   PMatrix3D currCameraMatrix;
   PGraphics3D g3;
   
   int buttonValue = 1;
   
   int myColor = color(255,0,0);
   
   void setup() {
     size(400,400,OPENGL2);
     g3 = (PGraphics3D)g;
     cam = new PeasyCam(this, 100);
     controlP5 = new ControlP5(this);
     controlP5.addButton("button",10,100,60,80,20).setId(1);
     controlP5.addButton("buttonValue",4,100,90,80,20).setId(2);
     controlP5.setAutoDraw(false);
   }
   void draw() {
    
     background(0);
     hint(ENABLE_DEPTH_TEST);
     fill(myColor);
     box(30);
     pushMatrix();
     translate(0,0,20);
     fill(0,0,255);
     box(5);
     popMatrix();
     // makes the gui stay on top of elements
     // drawn before.
     hint(DISABLE_DEPTH_TEST);
     gui();
    
   }
   
   void gui() {
      currCameraMatrix = new PMatrix3D(g3.camera);
      camera();
      controlP5.draw();
      g3.camera = currCameraMatrix;
   }
   
   void controlEvent(ControlEvent theEvent) {
     println(theEvent.controller().id());
   }
   
   void button(float theValue) {
     myColor = color(random(255),random(255),random(255));
     println("a button event. "+theValue);
   }