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Politics : Formerly About Advanced Micro Devices
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To: Maxwell who wrote (36461)8/30/1998 10:57:00 AM
From: Scumbria  Read Replies (3) of 1583685
 
You are full of it.

Maxwell,

Perhaps we can keep the discussion at a more mature level than this.

Double-precision doesn't add anything in this case such as 3D games. It doesn't even add to performance. As a matter of fact it slows it down due to 64bits calculation. Double precision may comes in when alignment are important such as high performance CAD where each coordinate is absolutely needed at very fine resolution (only can be seen by zooming in and out). KNI is not needed for the mass.

If you look closely at the image quality of 3D apps on your computer, you will see that real-time 3D rendering for computers is not at a very advanced stage. In fact it is in it's infancy.

The next generation of graphics adapters will be able to render near-photographic quality 3D images. This will require very high performance double precision math.

Compare the quality of images from the movie "Toy Story" with the quality of images in "Quake", and you will begin to get an understanding of what I am talking about.

BTW: The reason that double precision slows down your CPU, is because your CPU hardware is not designed to do double precision in a single pass and requires reiteration by software. RISC CPU's generally do double precision faster than single precision.

Scumbria
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