Hi,
I'm trying to create a Cube object using the following code:

import processing.core.*;
import processing.opengl.*;
import javax.media.opengl.*;

class Cube {


PVector[] vertices = new PVector[24];

float w, h, d;


Cube(){ }


Cube(float w, float h, float d){


this.w = w;


this.h = h;


this.d = d;



// Cube composed of 6 quads


// Front


vertices[0] = new PVector(-w/2, -h/2, d/2);


vertices[1] = new PVector(w/2, -h/2, d/2);


vertices[2] = new PVector(w/2, h/2, d/2);


vertices[3] = new PVector(-w/2, h/2, d/2);



// Left


vertices[4] = new PVector(-w/2, -h/2, d/2);


vertices[5] = new PVector(-w/2, -h/2, -d/2);


vertices[6] = new PVector(-w/2, h/2, -d/2);


vertices[7] = new PVector(-w/2, h/2, d/2);



// Right


vertices[8] = new PVector(w/2, -h/2, d/2);


vertices[9] = new PVector(w/2, -h/2, -d/2);


vertices[10] = new PVector(w/2, h/2, -d/2);


vertices[11] = new PVector(w/2, h/2, d/2);



// Back


vertices[12] = new PVector(-w/2, -h/2, -d/2);


vertices[13] = new PVector(w/2, -h/2, -d/2);


vertices[14] = new PVector(w/2, h/2, -d/2);


vertices[15] = new PVector(-w/2, h/2, -d/2);



// Top


vertices[16] = new PVector(-w/2, -h/2, d/2);


vertices[17] = new PVector(-w/2, -h/2, -d/2);


vertices[18] = new PVector(w/2, -h/2, -d/2);


vertices[19] = new PVector(w/2, -h/2, d/2);



// Bottom


vertices[20] = new PVector(-w/2, h/2, d/2);


vertices[21] = new PVector(-w/2, h/2, -d/2);


vertices[22] = new PVector(w/2, h/2, -d/2);


vertices[23] = new PVector(w/2, h/2, d/2);

}


void create(){


for (int i=0; i<6; i++){



beginShape(QUADS);



for (int j = 0; j < 4; j++){




vertex(vertices[j+4*i].x, vertices[j+4*i].y, vertices[j+4*i].z);



}



endShape();


}

}
}

However, Eclipse is saying the QUADS constant doesn't exist, the vertex() method doesn't exist, and the endShape() method doesn't exist.
When compiled and called I get the following runtime error:

Exception in thread "Animation Thread" java.lang.Error: Unresolved compilation problems:

QUADS cannot be resolved

The method vertex(float, float, float) is undefined for the type Cube

The method endShape() is undefined for the type Cube


at Cube.create(Cube.java:57)

at Test3.draw(Test3.java:54)

at processing.core.PApplet.handleDraw(PApplet.java:1395)

at processing.core.PApplet.run(PApplet.java:1300)

at java.lang.Thread.run(Thread.java:637)

If I make Cube extend PGraphics3D these warnings are removed, but are replaced by a runtime error of:

Exception in thread "Animation Thread" java.lang.NullPointerException

at processing.core.PGraphics3D.endShapeModelToCamera(PGraphics3D.java:650)

at processing.core.PGraphics3D.endShape(PGraphics3D.java:605)

at processing.core.PGraphics.endShape(PGraphics.java:1133)

at Cube.create(Cube.java:61)

at Test3.draw(Test3.java:54)

at processing.core.PApplet.handleDraw(PApplet.java:1395)

at processing.core.PApplet.run(PApplet.java:1300)

at java.lang.Thread.run(Thread.java:637)

Cube extending PGraphicsOpenGl gives the same runtime error.

Any ideas how to get the methods and constant visible without runtime errors?
Cheers

Calling context for cube:

import processing.core.*;
import processing.opengl.*;
import javax.media.opengl.*;

public class Test3 extends PApplet {


private boolean debugMode = true;


float bricksPerLayer = 16;

float brickLayers = 18;

Cube brick;

float brickWidth = 60, brickHeight = 25, brickDepth = 25;

float radius = 175;

float angle = 0;


public void setup() {


size(800, 600, OPENGL);


frameRate(60);


brick = new Cube(brickWidth, brickHeight, brickDepth);

}


public void draw() {




//lights();


background(230,230,230);


lights();




float cameraY = (float)(height/2.0);


float fov = (float)(PI/3);


float cameraZ = cameraY / tan((float)(fov / 2.0));


float aspect = (float)(width)/((float)(height));


perspective(fov, aspect, (float)(cameraZ/2.0), (float)(cameraZ*10.0));




float tempX = 0, tempY = 0, tempZ = 0;


for (int i = 0; i < brickLayers; i++){



// Increment rows



tempY -= brickHeight;



// Alternate brick seams



angle = 360/bricksPerLayer*i/2;



for (int j = 0; j < bricksPerLayer; j++){




tempZ = cos(radians(angle))*radius;




tempX = sin(radians(angle))*radius;




pushMatrix();




translate(tempX, tempY, tempZ);




rotateY(radians(angle));




// Add crenelation




if (i==brickLayers-1){





if (j%2 == 0){






brick.create();





}




}




// Create main tower




else {





brick.create();




}




popMatrix();




angle += 360.0/bricksPerLayer;



}


}





if(debugMode){



println("Frame Rate: " + frameRate);



println("Mouse X: " + mouseX);



println("Mouse Y: " + mouseY);


}

}


public static void main(String args[]) {


PApplet.main(new String[] {"Test3"});

}

}

Yeah, sorry about that, the bulletin board seems to have turned my tabs into carriage returns.

That's fantastic, just what I needed.  I had read a different tutorial, and read lots about getting openGL up and running but had missed this one.  Cheers!