In diesem post widme ich mich folgender Fragestellungen:

• Beispiele und Erklärung der For- und ForEach Schleife
• Was ist mit For bzw. ForEach Loop gemeint?
• Was sind Java Laufvariablen und wie benutze ich sie?

Dieser Artikel behandelt die folgenden Themen

• Java Arrays mit Beispielen
• Arrays in Java in mehreren Dimensionen

This blog post explains a common and versatile approach to OpenGL picking called “ray picking”. An example in pseudo-code is given below.

Picking is the process of finding objects in you scene based on user input. Most commonly, you want to determine what object a user has clicked with his mouse. In this case the 2D mouse coordinates serve as a reference on the view port to identify the projected objected that has been clicked. A similar scenario is a first person shooter, where the gun serves as the picking pointer, however in world space coordinates. If you shoot your gun, the trajectory of the bullet is traced through your scene and collisions are detected.

This getting started-tutorial is intended for JOGL users that are mere beginners. It helps to setup a recent JOGL installation in Eclipse on Windows. There is a video-walk-through further down the post, in case you dont feel like reading.

You are right in this page if you are on the quest for one of the following:

• recent JOGL binary distribution download
• precompiled Windows Java OpenGL bindings
• you just can not find the place where to download JOGL