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#1
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GPL and 100% detail bias...
I've recently upgraded my system to finally achieve that magic 36fps
at the back of the grid with 100% detail bias... but there's a rather nasty side effect: the cars are partly transparent for about a second after the flag drops. If I reduce the detail bias the effect disappears. And this seems to be a D3D and/or Ati problem, as I only noticed this after changing to an Ati card (and thus to D3D). Has anyone else noticed this? Is there a cure? -- - Jussi Koukku - |
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#2
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Jussi Koukku schrieb:
> I've recently upgraded my system to finally achieve that magic 36fps > at the back of the grid with 100% detail bias... but there's a rather > nasty side effect: the cars are partly transparent for about a second > after the flag drops. If I reduce the detail bias the effect > disappears. And this seems to be a D3D and/or Ati problem, as I only > noticed this after changing to an Ati card (and thus to D3D). > > Has anyone else noticed this? Is there a cure? > -- > - Jussi Koukku - I use 99% with my ATI 9700, no problems. |
#3
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Don't know, but I think we've reached the limits of Dx7. It's probable that
Dx7 is only capable of so many polys'. I think everyone with powerful systems gets this. The difference between about 80% and 100% detail bias is very small and therefore quite acceptable to me. It only really affects the more distant objects. I have a ATI Radeon 9800Pro and P4-3.2 + 1Gb matched DDR400 ram, and GPL is fine all but this very small problem. Now if GPL was Dx9, Alan "Michael Ziegler" > wrote in message ... > Jussi Koukku schrieb: >> I've recently upgraded my system to finally achieve that magic 36fps >> at the back of the grid with 100% detail bias... but there's a rather >> nasty side effect: the cars are partly transparent for about a second >> after the flag drops. If I reduce the detail bias the effect >> disappears. And this seems to be a D3D and/or Ati problem, as I only >> noticed this after changing to an Ati card (and thus to D3D). >> >> Has anyone else noticed this? Is there a cure? >> -- >> - Jussi Koukku - > I use 99% with my ATI 9700, no problems. |
#4
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"Rand Al'Thor" > wrote in message
... > Don't know, but I think we've reached the limits of Dx7. It's probable that > Dx7 is only capable of so many polys'. I think everyone with powerful > systems gets this. The difference between about 80% and 100% detail bias is > very small and therefore quite acceptable to me. It only really affects the > more distant objects. I have a ATI Radeon 9800Pro and P4-3.2 + 1Gb matched > DDR400 ram, and GPL is fine all but this very small problem. > > Now if GPL was Dx9, AFAIK you are right, it's a poly limit with DirectX but OpenGL doesn't have the same limitation (or maybe just not yet). 99% detail bias should fix the problem, but cars in the distance visibly change from 2D to 3D which some find irritating. Probably not as irritating as a transparent grid though ;-) Alternatively use earlier versions of some the GPLEA cars (with a lower poly count), but 99% bias is probably the simplest solution. Malc. > "Michael Ziegler" > wrote in message > ... > > Jussi Koukku schrieb: > >> I've recently upgraded my system to finally achieve that magic 36fps > >> at the back of the grid with 100% detail bias... but there's a rather > >> nasty side effect: the cars are partly transparent for about a second > >> after the flag drops. If I reduce the detail bias the effect > >> disappears. And this seems to be a D3D and/or Ati problem, as I only > >> noticed this after changing to an Ati card (and thus to D3D). > >> > >> Has anyone else noticed this? Is there a cure? > >> -- > >> - Jussi Koukku - > > I use 99% with my ATI 9700, no problems. > > |
#5
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On Mon, 25 Oct 2004 07:18:31 GMT, Jussi Koukku > wrote:
>I've recently upgraded my system to finally achieve that magic 36fps >at the back of the grid with 100% detail bias... but there's a rather >nasty side effect: the cars are partly transparent for about a second >after the flag drops. If I reduce the detail bias the effect >disappears. And this seems to be a D3D and/or Ati problem, as I only >noticed this after changing to an Ati card (and thus to D3D). > >Has anyone else noticed this? Is there a cure? The problem is that the Z-axis buffer is 16 bit, and thus doesn't support more then 32000 polygons. There are 2 "solutions". First, dissable the Z-axis in the CORE.INI. This will reduce performance. Second, use OpenGL instead. Cheers! Remco |
#6
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An informative thread as ever in this community, so again RAS is a MUST
read, also after 6 years GPL Rolf |
#7
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#9
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#10
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"Jussi Koukku" > wrote in message
... > I'm certainly not going to keep z-buffer disabled, 22fps is far from > acceptable. 99% detail bias is also unacceptable cause my rig can > easily handle 100%. Plus it's very much noticeable. Except you are clearly saying it cannot ;-) Solution #4: Throw money at your PC. Get an nVidia 5900XT or 6800GT or something, and use OpenGL. I run gpl at 1600x1200 with 8xAniso, 100% detail & so on & get about 32fps at the back of a full gplea grid (about 30 at Monaco with the rocks update), and 36 fps everywhere else. No transparent cars, lovely. Don't really need AA at 1600x1200 but the card has the power to use it online & hotlapping so I do. I'm rarely at the back of a full grid of AI but I often watch server replays with full grids. Problem solved ;-) Malc. |
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