3D graphics are one of the hardest, most complicated tasks for a computer to do. Computers have to be able to render a triple vector using the X, Y, and Z-axis's. The coordinates for every part of the object must be declared. To illustrate X, Y, and Z you use a graph like the one below.

<img src = xyz diag.gif>

The rendering of 3D graphics works on a three-way vector table. It tells the computer where to draw the lines based on where the points would be on a xyz graph. Some programs help you to design 3D objects and render the code.

Programmers will sometimes need 50 pages just to make a large square with shadows and basic movement using a language called VRML. VRML stands for Virtual Reality Modeling Language. Its code is simple but you have to declare every coordinate or intersection. You also have to understand the movement concepts of yaw, pitch and roll.

VRML is used to render many 3D objects that are used in games, simulators, movies, and even by the military. The military is currently working on a project that will render in complete detail what happens when a nuclear bomb goes off.

One of the first things you should do to learn VRML is to pretend that you are walking on a 3D graph for one day. Think about every move you make is a point on the graph that is constantly changing. This is why the code becomes so long.

Then you might want to get either a book or go to a web site that will teach VRML. The official VRML web site is http://www.vrml.org/home-bottom.html. This site has all of the rules and concepts of VRML explained.

3D graphics can be rendered by any computer using blocked 3D that looks rough and gritty like old video games. To render 3D graphics correctly you need a fast system and a 3D accelerator graphics card. This accelerated graphics card is made to process vectors faster and will have lots of onboard video memory.