This is particularly noticeable when there are multiple characters/enemies on the screen, as they cast very complex shadows. If set to Yes you will see most objects casting very realistic shadows, which move with dynamic sources of lighting (such as swinging lamps), however your FPS will be lower as your system has to do more calculations to determine where shadows are cast at any point in time. In general the difference is not large but unless you have an older graphics card, or are struggling for FPS, I suggest leaving this at High or above.Įnable Shadows: This setting determines whether you see any real-time shadows cast for objects in the game. Note further that lowering the shader detail level all the way to Low does not result in removal of the distortion effect visible near explosions - only setting Use Shader Programs to Off will do that. Look closely at the wall to the left, and note that the most significant difference appears at the transition between High and Medium, whereby the details on the wall change to less fine/less realistic wrinkling. To see the image quality difference between them check this animated screenshot comparison: Prey_Shaders.gif (969KB). Shader Detail: If Use Shader Programs (see above) is set to Yes, you can determine the level of shader effects here, with the available options here being Low, Medium, High and Highest. Fortunately even with Shader Programs disabled the difference in image quality is not significant - again, see the animated comparison below for further indication of its impact. Note that setting this option to No disables the Shader Detail options as well, and while disabling shader programs can boost FPS, this is primarily best disabled only for older graphics cards.
See Shader Detail below for another comparison. When set to No, there is no such distortion. For example in the screenshot comparison above you can see that with Use Shader Programs set to Yes, there is a distortion effect visible around the crawler grenade explosion. Shader effects rely on your graphics card hardware to increase the realism of the environment and add special effects in certain circumstances. Use Shader Programs: This option determines whether you can use additional shader-based effects in Prey.
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