Hi there,

I have a code snippet for a Doom Viewer written fo an Alpha version of Processing. I have been trying to update it so that it works today but am stuck. At the moment, this code does not seem to like g, or modelview. I don't really understand how this works, but if anybody has experience trying to write a similar bit of code that works on today's processing, I would be much obliged for some help.

The code I have is below:

1. final int BOXSIZE = 30;
   PMatrix3D matrix = new PMatrix3D();
   
   void setup(){
   
     size(200,200,P3D);
     matrix.reset();
    
   }
   
   void draw(){
   
     background(100);
     translate(width/2,height/2);
     int oldmouseY = mouseY;
     PMatrix3D mat = new PMatrix3D();
     mat.reset();
     mat.rotateY(0.0001 * (mouseX-(width/2)));
     mat.translate(0,0,0.2);
    
     matrix.preApply(mat);
     oldmouseY=mouseY;
     g.modelview.preApply(matrix);
    
     for (int i = 0; i < 10; i++){
        for (int j = 0; j < 10; j++){
          pushMatrix();
          translate(40*(i-5),0,-40*j);
          box(BOXSIZE,BOXSIZE,BOXSIZE);
          popMatrix();
        }
     }
    
   }

Thanks,

Erica.