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3D Acceleration

-As we talked about before with Direct Draw also comes into play with 3D acceleration. The guys that make those high end games know that it must be tailored along with Windows and in a way to throw information on screen. The idea of 3D is not a simple one. The math involved is not your typical consumer math. Math is not my strong subject as is, but the math is good for your processor onboard. Another thing to consider about 3D is the CPU that is in your computer. You really want a good processor not only on the Video Board but the motherboard also. We need a processor that can render all the 3D objects such as triangles to make an object on screen.

-Many things have to happen just on the CPU end of 3D acceleration. As I just said we need a CPU to handle the task. At this time Pentium is probably the best for this operation with AMD right behind it with its "3D NOW!" technology. I mentioned in CPU's that the AMD processors work just fine for these operations especially when equipped with an AGP Video Card. Now what happens in the system when running a graphic intensive 3D game? The primary steps are geometry, transform, and rendering all of which is handled by both the system CPU and the video card processor. Here are the steps in a better perspective. All steps in 3D are handled in scenes. As you read on we are simply making a scene. Just imagine how complex these scenes can be on high end games. You really need a good system to make this stuff happen.

-The Geometry, well we all know what a triangle looks like, right? Well your CPU has the job of determining were the triangle have to be placed to make an object on screen. This is usually done over a wire frame as seen in Auto CAD programs.

-Transform, now we have to put these triangles together. Your CPU will put a model of this image together in system memory on a wire frame. Not only this but we have to figure out the lighting of the triangles while in memory. This usually occurs on your systems CPU and not on the Video card processor.

-Render, now after taking information out of memory it is most likely sent to the Video Cards processor. When information hits the graphic board processor we will put those Bit Map images over our triangles thus making an image in 3D.


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