Re: 64M or 128M Texture Memory?

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From: Dan Johnston (dan.johnston++at++nrc.ca)
Date: 06/19/2001 12:59:07

Hui Li wrote:

> I had a Onyx2 Reality workstation with 2RM, to my understand, i could have
> 128M texture memory, however, when i run perfly, it says i have total of 64M
> and it seems that when the total texture goes over 64M my application will
> slow down quite a lot. Do i realy have but only 64M texture mem?
>
> thanks
>
> Hui
> .+-·!S÷¬Løm¶YÿÃ,,'(>û(~Ü­ïéz·è®g«üê^?7¯zZ)?éí>º#yËa¶Úþ<,²?¢oé®^ÞrÛ?¥êߢ¹?¯ô®nh¬²*'²)ߢ-«~Sæz» ?Ê&Ù¢?·ª¹ë-²)ߢ-«~SæzºÞªç¬¶È"

Nope. Even with 4 RMs you will only have 64 meg of texture memory on an IR2 pipe.
You WILL have either twice (in your case) or four times the memory speed because
the texture memory reads/writes can overlap.

If you have an IR3 then you get more texture memory. 

--
      ___|__    |
      /  |  \   ||\      Daniel (Dan) Johnston
     /___|___\  || \     Dan.Johnston++at++nrc.ca
    _____|____  ||  \    National Research Council of Canada, London, ON
    |    |    | ||   \   Integrated Manufacturing Technologies Institute
\___|    |    | ||____\  Tel: (519) 430-7081   Fax: (519) 430-7090
 \_o_\___|____|_|______\_    Inst: http://www.nrc.ca/imti
  \                o /    These opinions are my own! Not those of NRC.
   \________________/    Virtual Reality:
                        http://www.nrc.ca/imti/vetc/home.html
 More Tall Ships - Fewer Computers!

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