Glenda Adams, Director of Development at Aspyr Media, has been involved in Mac game development for over 20 years. MAC GAME PERFORMANCE BRIEFING FROM THE DOOM 3 DEVELOPERS Should we care if it can't play games as well as the "crude" PC? I say, "YES!" Why can't the Mac's amazing architecture, rich development tools, and state of the art OS combine to provide top notch OpenGL performance in the newest 3D game? "Why does Doom 3 run so slow on the Mac compared to the PCs?" The Mac is a very sophisticated personal computer.
#Mac doom 3 demo Pc#
We included the times from various Windows PC configurations as a reference point:ĬONCLUSION ON OUR TWEAKS of Doom 3 for the MacĮven with up to five tweaks, the fastest Macs with the fastest graphics cards could not catch up to the Windows PCs. The graph below shows the gains we achieved with each stage of tweaking. But at the "normal" High Quality setting with Shadows ON and Anisotropy set to 8, the gain from overclocking is 13%. If you see screen artifacts, then change the settings back to default immediately.)įor the record, we only saw a 5% gain with overclocking when all the tweaks set. It can cause permanent damage to your graphics card. We used ATIccelerator II to overclock the Radeon X800 XT (core clock set 5% faster to 500MHz and memory clock set 11% faster to 1100MHz). STAGE FIVE: This tweak only works on ATI Radeon graphics cards. This tweak helped the GeForce 6800 Ultra but didn't do anything for the Radeon X800 XT.
Seta image_filter "GL_LINEAR_MIPMAP_NEAREST" (in the config file). Seta image_filter "GL_LINEAR_MIPMAP_LINEAR" STAGE FOUR: Switch from Trilinear Filtering to Bilinear. (In the case of the ATI X800 XT, we used the ATI Displays utility to override the Anisotropic Filtering settings in Doom 3, because it gave us faster times whether set at 8 or OFF.) This filter only affects distant details and, in my opinion, won't be make a noticeable difference in realism during game play. STAGE THREE: Turn off Anisotropic Filtering either with console command (image_anisotropic 0). STAGE TWO: Turn off SHADOWS in ADVANCED OPTIONS - a step suggested by the developer. This is the starting point and the settings we used to compare the Mac to the PC in another article. STAGE ONE: Run at 1600x1200 with Video Quality set to HIGH First FOUR Advanced Options set to YES.
(See links below.) We decided to do an article probing ways to squeeze out a little more performance with only sight loss of visual quality and realism. There are already some excellent articles on Doom 3 for the Mac on at other sites. The G5/2.5GHz Power Mac with the two fastest graphics cards was handily beaten by "high end" Windows PCs. In our "Mac versus PC" game test page, we ran Doom 3 at 1600x1200 with Video Quality set to HIGH and the first four Advanced Options all set to YES. Hope springs eternal that the Mac version of Doom 3 will perform as well on the Mac as it does on the PC. Mac gamers have been anxiously awaiting Doom 3 for the Mac.
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