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3D Spotlight : Tweaking : Unreal tweak guide

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Unreal tweak guide
Last Updated on September 07, 2000 by Thomas McGuire - Page 4/10

Rendering OpenGL support

If youve selected OpenGL then set it as follows. Although, you should try using the Direct3d renderer before using OpenGL.

Coronas. Set this to True. This is the haze of light that appears around light sources in the game, such as lamps in the game. Set it to False if you need extra performance (very slight at that).

HighDetailActors. Set this to True for better visuals. Setting it to False will improve performance.

ShinySurfaces. Shiny surfaces are the reflective surfaces in the game, e.g. on some floors you can see your (& others) reflections. Setting it to False will improve your frame rate in such areas. Id recommend setting it to False.

VolumetricLighting. Set this to True for better visuals (effects like fog), although with lower performance. Setting this to False will result in a big frame rate increase. On most graphics cards that have trouble running Unreal setting this to False may mean the difference between a playable & an unplayable game.

You'll want to do some more advanced editing, go into the Unreal/System folder & open up OpenGlDrv.ini.

         If you are using a TNT or other OpenGL based card change DoPrecache=1 to 0 if you want to disable precaching in OpenGL. This will speed up the loading of levels, although may reduce performance.

         If you encounter any visual problems try changing UseMultiTexture=1 to 0. This may adversely affect performance however.

         Changing UseZTrick=1 to 0 can fix z-buffer related problems.

Rendering S3 Metal support

In the case of S3 (Savage 3, 4 & 2000) users you should use the S3 specific, Metal renderer. Savage 2000 owners will need to download this patch first & install it. Although this is intended for Unreal Tournament, Unreal uses the same game engine so should work just fine. To install it, backup your current metal.dll & metaldrv.dll in the Unreal\System directory & then place the downloaded metal.dll & metaldrv.dll in the Unreal\System directory, over-writing the old one.

Although if you decide not to use the directions above (or have to revert to the backed up versions) your options will be as follows. Either way, ignore the settings that arent available.

Coronas. Set this to True. This is the haze of light that appears around light sources in the game, such as lamps in the game. It has little effect on performance.

Description. This field displays the graphics card that you are using. Not much use unless you have multiple video cards in your system & want to check the correct one is being used in Unreal Tournament.

DetailTextures. A detail texture is a very small, fine pattern which is faded in as you approach a surface, for example wood grain, or imperfections in stone. Setting this to True will improve visuals, although can adversely affect performance when set to True. Set it to False for improved performance at the cost of some visual quality.

DisableTrippleBuffering. Set this to False for improved performance (Triple buffering allocates a 3rd frame buffer. This frame buffer can improve performance by allowing the hardware to render at the same time that the 3D application performs other tasks), although it will require extra video memory. Certainly set this to True if you have less than 16MB of video memory on your graphics card as this requires extra video memory.

Enable32BitZ. This setting is set to False by default. If you are experiencing flickering world surfaces & similar visual corruption when running in 16-bit color set this to True. This  forces the use of a 32-bit Z buffer (even in 16-bit colour) which should fix these display errors if they are occurring. You may ignore this setting if you experience no such errors or are running in 32-bit color.

EnableFastFlashblend. Set this to True to improve performance, setting it to False will improve visual quality slightly.

HighDetailActors. Set this to True for better visuals. Setting it to False will improve performance.

ShinySurfaces. Shiny surfaces are the reflective surfaces in the game, e.g. on some floors you can see your (& others) reflections. Setting it to False will improve your frame rate in such areas. Id recommend setting it to False.

VolumetricLighting. Set this to True for better visuals (effects like fog), although with lower performance. Setting this to False will result in a big frame rate increase. On most graphics cards that have trouble running Unreal setting this to False along with DetailTextures to False will mean the difference between a playable & an unplayable game.

Much like Glide, you should have few problems with this renderer at all.

 


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