On DOOM 3 Settings

Robert Duffy, id Software programmer, updated his .plan about DOOM 3 settings and how they will work, discussing specifics about the "ultra" quality setting as well as differences in how certain data are handled differently by ATI and NVIDIA hardware. He also mentions that the game is capped at 60 FPS (except when running demos as a benchmark), discusses the software used during development, as well as a bit on a hard drive nightmare encountered along the way. Here's a bit:
Image fidelity is dependent on what quality level we load the textures at.

In Ultra quality, we load each texture; diffuse, specular, normal map at full resolution with no compression. In a typical DOOM 3 level, this can hover around a whopping 500MB of texture data. This will run on current hardware but obviously we cannot fit 500MB of texture data onto a 256MB card and the amount of texture data referenced in a give scene per frame ( 60 times a second ) can easily be 50MB+. This can cause some choppiness as a lot of memory bandwidth is being consumed. It does however look fantastic :-) and it is certainly playable on high end systems but due to the hitching that can occur we chose to require a 512MB Video card before setting this automatically.

High quality uses compression ( DXT1,3,5 ) for specular and diffuse and no compression for normal maps. This looks very very close to Ultra quality but the compression does cause some loss. This is the quality that for instance the PC Gamer review was played in.

Medium quality uses compression for specular, diffuse, and normal maps. This still looks really really good but compressing the normal maps can produce a few artifacts especially on hard angled or round edges. This level gets us comfortably onto 128MB video cards.

Low quality does everything medium quality does but it also downsizes textures over 512x512 and we downsize specular maps to 64x64 in this mode as well. This fits us onto a 64MB video card.
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/3GB Boot.ini setting
Jul 28, 2004, 09:07
/3GB Boot.ini setting Jul 28, 2004, 09:07
Jul 28, 2004, 09:07
 
Does anyone know if using the /3GB boot.ini setting in XP will make any difference with Doom 3, or is this mainly for database applications and things like that?

/3GB
Increases the size of the user process address space from 2 GB to 3 GB (and therefore reduces the size of system space from 2 GB to 1 GB). Giving virtual-memory- intensive applications such as database servers a larger address space can improve their performance. For an application to take advantage of this feature, however, two additional conditions must be met: the system must be running Windows XP, Windows Server 2003, Windows 2000 Advanced Server or Datacenter Server and the application .exe must be flagged as a 3-GB-aware application.

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/3GB Boot.ini setting