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SOHAIL
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Posted - 2003.12.17 15:42:00 -
[1]
Hi, i was wonder if anyone can explain whats the Difference bettween 24bit and the new 24bit with 8bit Alpha ? Also which one is improved form.
"We'll show them what FIREPOWER is all about" |
Eldariel
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Posted - 2003.12.17 15:44:00 -
[2]
Edited by: Eldariel on 17/12/2003 15:46:17
24 bit with 8 bit is the best (=32 bit colour). The extra 8-bit provides an alpha channel (transparency) from memory
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SOHAIL
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Posted - 2003.12.17 16:22:00 -
[3]
Thanks Eldariel, do you 8x ANisoTropic FIltering does have an effect on this game?
"We'll show them what FIREPOWER is all about" |
DREAMWORKS
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Posted - 2003.12.17 16:29:00 -
[4]
Whats best for performance?
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http://www.nin.com/visuals/thtf_hi.html |
Eldariel
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Posted - 2003.12.17 21:00:00 -
[5]
Edited by: Eldariel on 17/12/2003 21:04:40
Performance will (theoretically) be highest with the lowest bit depth (16bit), since it requires less memory etc, although on the odd occasion it can be worse if the developers have optimised for 32 bit
This performance is at the expense of image quality however(you'll see banding in colour ranges) with 16 (and to a lesser extent) 24 bit
So the rule of thumb is
Lower bit depth to increase performance
Increase bit depth to improve image quality
Anisotropic filtering can signifincatly improve texture quality, but can have a significant performance impact if you are running anything older than a 9700Pro or Geforce FX type card. 8x aniso is the highest quality setting, but also has potentially the worst performance
Fortunately EVE is pretty light on graphics card load so you can usually get away with high settings. I run 32bit with 8x aniso on my Geforce FX 5900 Ultra, but you can probably get away with this on a GF3 as well (might need to lower screen resolution)
Optimal Performance: 16 bit, No Aniso
Optimal Image Quality: 24+8bit, 8x Aniso
Start at optimal image quality and work down if you are getting low FPS (reduce the aniso first)
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SOHAIL
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Posted - 2003.12.19 20:32:00 -
[6]
thanks for demonstration, I think ill run 8x anisotropic filtering. I have asus geforce FX ultra 256mb.
"We'll show them what FIREPOWER is all about" |
Drutort
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Posted - 2003.12.19 20:37:00 -
[7]
for me with the 8bit thing makes some images messed up like when you look in the map were the systems are there, you see a semi transperent square
and many other graphics are messed up...
i have geforce 4 ti4200 8x with newest nvidia drivers
support Idea: QuickInfo an alternative to ShowInfo
my MoBlog |
Slave Miner
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Posted - 2003.12.19 21:19:00 -
[8]
 Quote:
Edited by: Eldariel on 17/12/2003 21:04:40
Performance will (theoretically) be highest with the lowest bit depth (16bit), since it requires less memory etc, although on the odd occasion it can be worse if the developers have optimised for 32 bit
This performance is at the expense of image quality however(you'll see banding in colour ranges) with 16 (and to a lesser extent) 24 bit
So the rule of thumb is
Lower bit depth to increase performance
Increase bit depth to improve image quality
Anisotropic filtering can signifincatly improve texture quality, but can have a significant performance impact if you are running anything older than a 9700Pro or Geforce FX type card. 8x aniso is the highest quality setting, but also has potentially the worst performance
Fortunately EVE is pretty light on graphics card load so you can usually get away with high settings. I run 32bit with 8x aniso on my Geforce FX 5900 Ultra, but you can probably get away with this on a GF3 as well (might need to lower screen resolution)
Optimal Performance: 16 bit, No Aniso
Optimal Image Quality: 24+8bit, 8x Aniso
Start at optimal image quality and work down if you are getting low FPS (reduce the aniso first)
A little clarification, if you have a newer card (dx 8, dx9 compatible, ie. radeon, gf3+) you'll get better performance with 32 bit colour as those card scale down the colours when they are rendered, specificaly with the fx and 95XX+ series where everything in rendered at 128 bit colours down the pipeline then dithered down to 32/24/16, so you'll end up with better performance and visual quality at a higher bit rate.
On anisotropic filtering, if you have a 95XX+ card you'll feel little to no performance hit using lower ammounts, at 8x you'll start feeling some degraded performance, but in a game like eve, anisotropic filtering isn't a big deal as you rarely have a large textured plane.
Finaly for the most part you'll get less banding and z-fighting using 24+8 bit colour depth for the most part, so that flickering that you see as you are closing in on a station would get reduced.
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Mrissa Easeah
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Posted - 2003.12.19 21:43:00 -
[9]
Would any of this affect character images? I load characters without hair, and without clothes about 80% of the time -
Something in the way it stacks the images (foreground/background), but I'm not sure what causes this or settings responsible.
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SOHAIL
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Posted - 2003.12.20 13:17:00 -
[10]
Slave Miner, u mean to say that Aniso Tropic Filtering affect only FPS type games?
"We'll show them what FIREPOWER is all about" |
Slave Miner
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Posted - 2003.12.21 22:26:00 -
[11]
Quote:
Slave Miner, u mean to say that Aniso Tropic Filtering affect only FPS type games?
No it affects all games, but it's really not noticeable in a game like eve, anisotropic filtering is used to smooth out mip map transitions and clean them up, so unless you have a large view plane with many parallel/perpendicular or planar surfaces in the distance, you won't really notice a change.
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Archemedes
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Posted - 2003.12.22 11:15:00 -
[12]
Wonder what (if any) of these options my old Radeon 8500 would handle?
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HRose
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Posted - 2003.12.23 01:00:00 -
[13]
Edited by: HRose on 23/12/2003 01:01:31
I did some tests and I can say that actually 24+8 bit makes the graphic worst.
It messes with the transparence of the UI.
I've taken various screenshot and I can assure that the best graphic quality is at 24 bit without the additional 8 bits.
HRose
- I'm Italian so sorry for mistakes and bad english -
- All that i say is *always* imho -
Writing for www.mmorpg.it |
Uuldahan
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Posted - 2003.12.23 03:03:00 -
[14]
Quote:
Edited by: HRose on 23/12/2003 01:01:31
I did some tests and I can say that actually 24+8 bit makes the graphic worst.
It messes with the transparence of the UI.
I've taken various screenshot and I can assure that the best graphic quality is at 24 bit without the additional 8 bits.
On my TI4200, I have the same problem when I engage warp. It seems "24 bits color with 8 bits alpha" is not good for this kind of cards.
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