This blog post explains a common and versatile approach to OpenGL picking called “ray picking”. A code example 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.

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

Ab einem gewissen Trafficvolumumen beginnt die Sessionstabelle die der Tomcat auf der Platte hält stetig zu wachsen und täglich größere Ausmaße anzunehmen. Da der Tomcat einen großen Teil der serialisierten Sessiontabelle im Speicher hält, kann das zu einem akkuten Crashrisiko werden, wenn der Tomcat bis zum Limit wächst (oder das OS zu swappen beginnt).

Moin, moin! Heute nun eine kurze Einweisung in die richtige Verwendung von BufferedReaders und den Grund warum der BufferedReader so populär ist. Im Grunde gibt es zwei Gründe: