JOGL 3D Basic Shape

by Online Tutorials Library July 14, 2022

JOGL 3D Basic shape

In three dimensional object, z-axis is also exist with x-axis and y-axis. These axis represents height, width and depth of an object. Thus, it represents the real view of an object.

JOGL 3D Example

In this example, we are creating a simple 3D object.

J3DBasic.java

  package com.tutoraspire.jogl;  import javax.media.opengl.*;  import javax.media.opengl.awt.GLCanvas;  import javax.media.opengl.glu.GLU;    import javax.swing.JFrame;    public class J3DBasic implements GLEventListener {  private GLU glu = new GLU();       @Override  public void display(GLAutoDrawable drawable) {    final GL2 gl = drawable.getGL().getGL2();  gl.glTranslatef(0f, 0f,-3f);  gl.glBegin(GL2.GL_LINES);  gl.glVertex3f(-1f,0f,0);  gl.glVertex3f(0f,1f, 0);  gl.glEnd();          //3D  gl.glBegin(GL2.GL_LINES);  gl.glVertex3f(-1f,0f,-2f);  gl.glVertex3f(0f,1f,-2f);  gl.glEnd();          //top  gl.glBegin(GL2.GL_LINES);  gl.glVertex3f(-1f,0f,0);  gl.glVertex3f(-1f,0f,-2f);  gl.glEnd();          //bottom  gl.glBegin(GL2.GL_LINES);  gl.glVertex3f(0f,1f, 0);  gl.glVertex3f(0f,1f,-2f);  gl.glEnd();     }       @Override  public void dispose(GLAutoDrawable arg0) {        //method body     }       @Override  public void init(GLAutoDrawable arg0) {        // method body     }       @Override  public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {            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(40.0f, h, 1.5, 18.0);  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);        J3DBasic b = new J3DBasic();  gc.addGLEventListener(b);  gc.setSize(600, 400);      final JFrame frame = new JFrame(“JOGL 3D”);      frame.getContentPane().add(gc);  frame.setSize(frame.getContentPane().getPreferredSize());  frame.setVisible(true);     }  }  

Output:

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