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91 lines
3.5 KiB
ReStructuredText
91 lines
3.5 KiB
ReStructuredText
Water Settings
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##############
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.. note::
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The settings for the water shader are difficult to describe,
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but can be seen immediately in the Water tab of the Video panel in the Options menu.
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Changes there will be saved to these settings.
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It is suggested to stand on the shore of a moderately broad body of water with trees or other objects
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on the far shore to test reflection textures,
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underwater plants in shallow water near by to test refraction textures,
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and some deep water visible from your location to test deep water visibility.
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shader
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------
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:Type: boolean
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:Range: True/False
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:Default: False
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This setting enables or disables the water shader, which results in much more realistic looking water surfaces,
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including reflected objects and a more detailed wavy surface.
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This setting can be toggled with the Shader button in the Water tab of the Video panel of the Options menu.
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rtt size
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--------
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:Type: integer
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:Range: > 0
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:Default: 512
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The setting determines the size of the texture used for reflection and refraction (if enabled).
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For reflection, the texture size determines the detail of reflected images on the surface of the water.
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For refraction, the texture size determines the detail of the objects on the other side of the plane of water
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(which have a wavy appearance caused by the refraction).
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RTT is an acronym for Render To Texture which allows rendering of the scene to be saved as a texture.
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Higher values produces better visuals and result in a marginally lower frame rate depending on your graphics hardware.
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In the Water tab of the Video panel of the Options menu, the choices are Low (512), Medium (1024) and High (2048).
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This setting has no effect if the shader setting is false.
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It is recommended to use values that are a power of two because this results in more efficient use of video hardware.
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This setting has no effect if the shader setting is false.
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refraction
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----------
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:Type: boolean
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:Range: True/False
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:Default: False
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This setting enables the refraction rendering feature of the water shader.
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Refraction causes deep water to be more opaque
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and objects seen through the plane of the water to have a wavy appearance.
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Enabling this feature results in better visuals, and a marginally lower frame rate depending on your graphics hardware.
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This setting has no effect if the shader setting is false.
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This setting can be toggled with the 'Refraction' button in the Water tab of the Video panel of the Options menu.
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reflect actors
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--------------
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:Type: boolean
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:Range: True/False
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:Default: False
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This setting controls whether or not NPCs and creatures are drawn in water reflections.
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Setting this to true will enable actors in reflections and increase realism with a likely decrease in performance.
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This setting can be toggled with the 'Reflect actors' button in the Water tab of the Video panel of the Options menu.
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small feature culling pixel size
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--------------------------------
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:Type: floating point
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:Range: > 0
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:Default: 20.0
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Controls the cutoff in pixels for small feature culling - see the 'Camera' section for more details,
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however this setting in the 'Water' section applies specifically to objects rendered in water reflection
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and refraction textures.
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The setting 'rtt size' interacts with this setting
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because it controls how large a pixel on the water texture (technically called a texel) is in pixels on the screen.
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This setting will have no effect if the shader setting is false,
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or the 'small feature culling' (in the 'Camera' section) is disabled.
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This setting can only be configured by editing the settings configuration file.
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