JOGL 3D Cube

by Online Tutorials Library July 14, 2022

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.tutoraspire.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:

JOGL 3D Cube

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