| Author |
? For Graphics Gurus - F4:AF
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| Werewolf 2006-02-26, 7:51 pm |
| I gotta question about graphics performance and who'd know more about
that than Flight Sim guys? No one.
In F4:AF when going from 1024X768 16bit with normal 16 bit only textures
to 1024X768 32bit with only 32 bit textures I take a 10% frame rate hit.
Which seems strange. Intuitively moving 32 bits at a time thru a 32 bit
data buss (and maybe DMA) should be faster than doing it at 16 bits but
it's not.
What am I missing. Why is pure 32 bit slower than pure 16 bit?
Inquiring minds want to know?
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| Chris Townsend 2006-02-26, 7:51 pm |
| Heh. for one you are asking, "Why is it slower for my game to run rendering
a possible 16 million colors instead of 64 thousand?"
"Werewolf" <nunya@numbnuts.com> wrote in message
news:sO3Gf.15183$ZA5.4276@fed1read05...
quote:
>I gotta question about graphics performance and who'd know more about that
>than Flight Sim guys? No one.
>
> In F4:AF when going from 1024X768 16bit with normal 16 bit only textures
> to 1024X768 32bit with only 32 bit textures I take a 10% frame rate hit.
>
> Which seems strange. Intuitively moving 32 bits at a time thru a 32 bit
> data buss (and maybe DMA) should be faster than doing it at 16 bits but
> it's not.
>
> What am I missing. Why is pure 32 bit slower than pure 16 bit?
>
> Inquiring minds want to know?
| |
|
| Hi,
There's more data in 32-bit than 16-bit, that's why its slower.
___| reply |__________________________________________________________
I gotta question about graphics performance and who'd know more about
that than Flight Sim guys? No one.
In F4:AF when going from 1024X768 16bit with normal 16 bit only
textures
to 1024X768 32bit with only 32 bit textures I take a 10% frame rate
hit.
Which seems strange. Intuitively moving 32 bits at a time thru a 32 bit
data buss (and maybe DMA) should be faster than doing it at 16 bits but
it's not.
What am I missing. Why is pure 32 bit slower than pure 16 bit?
Inquiring minds want to know?
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