JOGL 3D Cube

In this section, we will learn how to create a cube. So for that firstly create six quadrilaterals of same size and positioned them in such a way that by connecting them we will get a proper cube. We will also rotate this cube to see all its sides.

To create a rotating cube, go through the below example: -

J3DCube.java

package com.javatpoint.jogl;


import javax.media.opengl.GL2;
import javax.media.opengl.*;
import javax.media.opengl.awt.GLCanvas;
import javax.media.opengl.glu.GLU;

import javax.swing.JFrame;

import com.jogamp.opengl.util.FPSAnimator;

public class J3DCube implements GLEventListener {


private GLU glu = new GLU();
private float rotation = 0.0f;

   @Override
public void display( GLAutoDrawable drawable ) {
	
final GL2 gl = drawable.getGL().getGL2();
gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT );
gl.glLoadIdentity();
gl.glTranslatef( 0f, 0f, -2.0f ); 

gl.glRotatef(rotation, 1.0f, 1.0f, 1.0f); 


gl.glBegin(GL2.GL_QUADS); 
gl.glColor3f(0f,0f,1f); //Blue color
      //Top Quadrilateral
gl.glVertex3f(0.5f, 0.5f, -0.5f); //Upper Right
gl.glVertex3f( -0.5f, 0.5f, -0.5f); // Upper Left
gl.glVertex3f( -0.5f, 0.5f, 0.5f ); // Bottom Left
gl.glVertex3f( 0.5f, 0.5f, 0.5f ); // Bottom Right
		//Below Quadrilateral
gl.glColor3f( 1f,0f,0f ); //Red color
gl.glVertex3f( 0.5f, -0.5f, 0.5f ); // Upper Right 
gl.glVertex3f( -0.5f, -0.5f, 0.5f ); // Upper Left 
gl.glVertex3f( -0.5f, -0.5f, -0.5f ); // Bottom Left 
gl.glVertex3f( 0.5f, -0.5f, -0.5f ); // Bottom Right 
      //Front Quadrilateral
gl.glColor3f( 0f,1f,0f ); //Green color
gl.glVertex3f( 0.5f, 0.5f, 0.5f ); // Upper Right 
gl.glVertex3f( -0.5f, 0.5f, 0.5f ); // Upper Left 
gl.glVertex3f( -0.5f, -0.5f, 0.5f ); // Bottom Left 
gl.glVertex3f( 0.5f, -0.5f, 0.5f ); // Bottom Right
      //Back Quadrilateral
gl.glColor3f( 1f,1f,0f ); //Yellow
gl.glVertex3f( 0.5f, -0.5f, -0.5f ); // Bottom Left 
gl.glVertex3f( -0.5f, -0.5f, -0.5f ); // Bottom Right 
gl.glVertex3f( -0.5f, 0.5f, -0.5f ); // Upper Right 
gl.glVertex3f( 0.5f, 0.5f, -0.5f ); // Upper Left 
      //Left Quadrilateral
gl.glColor3f( 1f,0f,1f ); //Purple
gl.glVertex3f( -0.5f, 0.5f, 0.5f ); // Upper Right
gl.glVertex3f( -0.5f, 0.5f, -0.5f ); // Upper Left 
gl.glVertex3f( -0.5f, -0.5f, -0.5f ); // Bottom Left 
gl.glVertex3f( -0.5f, -0.5f, 0.5f ); // Bottom Right 
      //Right Quadrilateral
gl.glColor3f( 0f,1f, 1f ); //Cyan
gl.glVertex3f( 0.5f, 0.5f, -0.5f ); // Upper Right 
gl.glVertex3f( 0.5f, 0.5f, 0.5f ); // Upper Left 
gl.glVertex3f( 0.5f, -0.5f, 0.5f ); // Bottom Left 
gl.glVertex3f( 0.5f, -0.5f, -0.5f ); // Bottom Right 
gl.glEnd(); 
gl.glFlush();
		
rotation += 0.6f;
   }

   @Override
public void dispose( GLAutoDrawable drawable ) {

   }

   @Override
public void init( GLAutoDrawable drawable ) {
	
   }

   @Override
public void reshape( GLAutoDrawable drawable, int x, int y, int width, int height ) {
	
final GL2 gl = drawable.getGL().getGL2();
if( height <= 0 )
height = 1;
			
final float h = ( float ) width / ( float ) height;
gl.glViewport( 0, 0, width, height );
gl.glMatrixMode( GL2.GL_PROJECTION );
gl.glLoadIdentity();
		
glu.gluPerspective( 45.0f, h, 1.0, 20.0 );
gl.glMatrixMode( GL2.GL_MODELVIEW );
gl.glLoadIdentity();
   }

public static void main( String[] args ) {
	
final GLProfile gp = GLProfile.get( GLProfile.GL2 );
GLCapabilities cap = new GLCapabilities(gp );


final GLCanvas gc = new GLCanvas(cap);
      J3DCube cube = new J3DCube();
		
gc.addGLEventListener( cube );
gc.setSize( 400, 400 );
		
final JFrame frame = new JFrame( " 3D cube" );
frame.add(gc);
frame.setSize(600,500);
frame.setVisible(true); 

final FPSAnimator animator = new FPSAnimator(gc, 200,true);
animator.start();
   }
	
}

Output:

Next TopicJOGL 3D Cuboid

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