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Article #324

Re: Why V2 8MB can only do 800x600?

#324
From: Klingon da Prevert!
Date: Thu, 21 Oct 1999 00:00
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Well then, what about SLI mode, using 2 V2's?

REM

On Thu, 14 Oct 1999 09:22:16 +0100, Andrew Hodgson
<ahodgson@nortelnetworks.com> wrote:

>You need a certain number of bytes free in the framebuffer to do
>Z-buffering on a Voodoo2. When you're in 1024x768 resolution the memory
>requirements for a double buffered display (essential for games) & Z
>buffering are as follows:
>
>Memory needed for display (16-bit colour depth):
>(1024x768x16x2)/8 = 3,145,728 bytes (the 2 is for double buffering)
>= 3MB
>
>Memory needed for Z (16-bit Z on a V2):
>(1024x768x16)/8 = 1,572,864 bytes
>= 1.5MB
>
>3+1.5 = 4.5 > 4MB therefore no Z buffer can be used.
>
>Andrew
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From: jivin@dajukejoint.com (Klingon da Prevert!)
Subject: Re: Why V2 8MB can only do 800x600?
Date: 1999/10/21
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