JOGL测试

JOGL是JAVA通过JNI的方式调用OpenGL的封装。

给出一个简单Demo(所需依赖，不是最小依赖，有多余的jar和DLL)

1、环境配置

依赖jar包：

指定native库

工程配置和javacv配置过程类似：指定依赖的jar包、dll库。

2、使用JOGL显示三角形

公共类：OneTriangle，进行OpenGL的初始化、绘图。

import com.jogamp.opengl.GL;
import com.jogamp.opengl.GL2;
import com.jogamp.opengl.glu.GLU;

public class OneTriangle {
    //初始化
    protected static void setup( GL2 gl2, int width, int height ) {
        gl2.glMatrixMode( GL2.GL_PROJECTION );
        gl2.glLoadIdentity();

        // coordinate system origin at lower left with width and height same as the window
        GLU glu = new GLU();
        glu.gluOrtho2D( 0.0f, width, 0.0f, height );

        gl2.glMatrixMode( GL2.GL_MODELVIEW );
        gl2.glLoadIdentity();

        gl2.glViewport( 0, 0, width, height );
    }
    //渲染
    protected static void render( GL2 gl2, int width, int height ) {
        gl2.glClear( GL.GL_COLOR_BUFFER_BIT );

        // draw a triangle filling the window
        gl2.glLoadIdentity();
        //绘制图元：三角形
        gl2.glBegin( GL.GL_TRIANGLES );
        //第一个点以及颜色
        gl2.glColor3f( 1, 0, 0 );
        gl2.glVertex2f( 0, 0 );
        //第二个点以及颜色
        gl2.glColor3f( 0, 1, 0 );
        gl2.glVertex2f( width, 0 );
        //第三个点以及颜色
        gl2.glColor3f( 0, 0, 1 );
        gl2.glVertex2f( width / 2, height );
        gl2.glEnd();
    }
}

OneTriangleSwingGLCanvas：显示三角形

package com.test;

import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;

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;

public class OneTriangleSwingGLCanvas {
    public static void main( String [] args ) {
        GLProfile glprofile = GLProfile.getDefault();
        GLCapabilities glcapabilities = new GLCapabilities( glprofile );
        final GLCanvas glcanvas = new GLCanvas( glcapabilities );
	//添加监听
        glcanvas.addGLEventListener( new GLEventListener() {
            
            @Override
            public void reshape( GLAutoDrawable glautodrawable, int x, int y, int width, int height ) {
                OneTriangle.setup( glautodrawable.getGL().getGL2(), width, height );
            }
            
            @Override
            public void init( GLAutoDrawable glautodrawable ) {
            }
            
            @Override
            public void dispose( GLAutoDrawable glautodrawable ) {
            }
            
            @Override
            public void display( GLAutoDrawable glautodrawable ) {
		//调用渲染方法，进行渲染
                OneTriangle.render( glautodrawable.getGL().getGL2(), glautodrawable.getSurfaceWidth(), glautodrawable.getSurfaceHeight() );
            }
        });
	//创建绘图窗口
        final JFrame jframe = new JFrame( "JAVA下的OpenGL实现" ); 
        jframe.addWindowListener( new WindowAdapter() {
            public void windowClosing( WindowEvent windowevent ) {
                jframe.dispose();
                System.exit( 0 );
            }
        });
	//将GL渲染的图，显示到窗口中
        jframe.getContentPane().add( glcanvas, BorderLayout.CENTER );
        jframe.setSize( 640, 480 );
        jframe.setVisible( true );
    }
}

结果展示：