JOGL学习（3）—— 旋转彩色立方体

刺骨的言语ヽ痛彻心扉 2023-07-13 03:39 9阅读 0赞

*  参考链接：[https://iowiki.com/jogl/jogl\_3d\_cube.html][https_iowiki.com_jogl_jogl_3d_cube.html]

package t1;
    
    
    //旋转立方体
    
    import java.awt.DisplayMode;
    import com.jogamp.opengl.GL2;
    import com.jogamp.opengl.GLAutoDrawable;
    import com.jogamp.opengl.GLCapabilities;
    import com.jogamp.opengl.GLEventListener;
    import com.jogamp.opengl.GLProfile;
    import com.jogamp.opengl.awt.GLCanvas;
    import com.jogamp.opengl.glu.GLU;
    import javax.swing.JFrame;
    import com.jogamp.opengl.util.FPSAnimator;
    
    public class T5 implements GLEventListener {
    	public static DisplayMode dm, dm_old;
    	private GLU glu = new GLU();
    	private float rquad = 3.0f;
    
    	@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();
    		//出现在屏幕中的位置，
    		gl.glTranslatef(0f, 0f, -10.0f);
    		// Rotate The Cube On X, Y & Z 沿着哪个点旋转
    		gl.glRotatef(rquad, 1.0f, 1.0f, 1.0f); 
    		// giving different colors to different sides
    		gl.glBegin(GL2.GL_QUADS); // Start Drawing The Cube
    		gl.glColor3f(1f, 0f, 0f); // red color  红色面
    		gl.glVertex3f(1.0f, 1.0f, -1.0f); // Top Right Of The Quad (Top)
    		gl.glVertex3f(-1.0f, 1.0f, -1.0f); // Top Left Of The Quad (Top)
    		gl.glVertex3f(-1.0f, 1.0f, 1.0f); // Bottom Left Of The Quad (Top)
    		gl.glVertex3f(1.0f, 1.0f, 1.0f); // Bottom Right Of The Quad (Top)
    		gl.glColor3f(0f, 1f, 0f); // green color  绿色面
    		gl.glVertex3f(1.0f, -1.0f, 1.0f); // Top Right Of The Quad
    		gl.glVertex3f(-1.0f, -1.0f, 1.0f); // Top Left Of The Quad
    		gl.glVertex3f(-1.0f, -1.0f, -1.0f); // Bottom Left Of The Quad
    		gl.glVertex3f(1.0f, -1.0f, -1.0f); // Bottom Right Of The Quad
    		gl.glColor3f(0f, 0f, 1f); // blue color  蓝色面
    		gl.glVertex3f(1.0f, 1.0f, 1.0f); // Top Right Of The Quad (Front)
    		gl.glVertex3f(-1.0f, 1.0f, 1.0f); // Top Left Of The Quad (Front)
    		gl.glVertex3f(-1.0f, -1.0f, 1.0f); // Bottom Left Of The Quad
    		gl.glVertex3f(1.0f, -1.0f, 1.0f); // Bottom Right Of The Quad
    		gl.glColor3f(1f, 1f, 0f); // yellow (red + green) 黄色面
    		gl.glVertex3f(1.0f, -1.0f, -1.0f); // Bottom Left Of The Quad
    		gl.glVertex3f(-1.0f, -1.0f, -1.0f); // Bottom Right Of The Quad
    		gl.glVertex3f(-1.0f, 1.0f, -1.0f); // Top Right Of The Quad (Back)
    		gl.glVertex3f(1.0f, 1.0f, -1.0f); // Top Left Of The Quad (Back)
    		gl.glColor3f(1f, 0f, 1f); // purple (red + green) 紫色面
    		gl.glVertex3f(-1.0f, 1.0f, 1.0f); // Top Right Of The Quad (Left)
    		gl.glVertex3f(-1.0f, 1.0f, -1.0f); // Top Left Of The Quad (Left)
    		gl.glVertex3f(-1.0f, -1.0f, -1.0f); // Bottom Left Of The Quad
    		gl.glVertex3f(-1.0f, -1.0f, 1.0f); // Bottom Right Of The Quad
    		gl.glColor3f(0f, 1f, 1f); // sky blue (blue +green) 天空色面
    		gl.glVertex3f(1.0f, 1.0f, -1.0f); // Top Right Of The Quad (Right)
    		gl.glVertex3f(1.0f, 1.0f, 1.0f); // Top Left Of The Quad
    		gl.glVertex3f(1.0f, -1.0f, 1.0f); // Bottom Left Of The Quad
    		gl.glVertex3f(1.0f, -1.0f, -1.0f); // Bottom Right Of The Quad
    		gl.glEnd(); // Done Drawing The Quad
    		gl.glFlush();
    		rquad -= 3.15f;
    	}
    
    	@Override
    	public void dispose(GLAutoDrawable drawable) {
    		// TODO Auto-generated method stub
    	}
    
    	@Override
    	public void init(GLAutoDrawable drawable) {
    		final GL2 gl = drawable.getGL().getGL2();
    		gl.glShadeModel(GL2.GL_SMOOTH);
    		gl.glClearColor(0f, 0f, 0f, 0f);
    		gl.glClearDepth(1.0f);
    		gl.glEnable(GL2.GL_DEPTH_TEST);
    		gl.glDepthFunc(GL2.GL_LEQUAL);
    		gl.glHint(GL2.GL_PERSPECTIVE_CORRECTION_HINT, GL2.GL_NICEST);
    	}
    
    	@Override
       public void reshape( GLAutoDrawable drawable, int x, int y, int width, int height ) {
          // TODO Auto-generated method stub
          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 void starting() {
    		final GLProfile profile = GLProfile.get(GLProfile.GL2);
    		GLCapabilities capabilities = new GLCapabilities(profile);
    		capabilities.setDoubleBuffered(true);
    		// The canvas
    		final GLCanvas glcanvas = new GLCanvas(capabilities);
    		
    		glcanvas.addGLEventListener(this);
    		glcanvas.setSize(1200, 1200);
    		final JFrame frame = new JFrame(" Multicolored cube");
    		frame.getContentPane().add(glcanvas);
    		frame.setSize(frame.getContentPane().getPreferredSize());
    		frame.setVisible(true);
    		final FPSAnimator animator = new FPSAnimator(glcanvas, 300, true);
    		animator.start();
    	}
    
    	public static void main(String[] args) {
    		
    		T5 cube = new T5();
    		cube.starting();
    		
    	}
    }

[https_iowiki.com_jogl_jogl_3d_cube.html]: https://iowiki.com/jogl/jogl_3d_cube.html