78 lines
3.4 KiB
XML
78 lines
3.4 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="Noise" inherits="Resource" version="4.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../doc/class.xsd">
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<brief_description>
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Abstract base class for noise generators.
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</brief_description>
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<description>
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This class defines the interface for noise generation libraries to inherit from.
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A default get_seamless_noise() implementation is provided for libraries that do not provide seamless noise. This function requests a larger image from get_image(), reverses the quadrants of the image, then uses the strips of extra width to blend over the seams.
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Inheriting noise classes can optionally override this function to provide a more optimal algorithm.
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="get_image" qualifiers="const">
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<return type="Image" />
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<param index="0" name="width" type="int" />
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<param index="1" name="height" type="int" />
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<param index="2" name="invert" type="bool" default="false" />
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<param index="3" name="in_3d_space" type="bool" default="false" />
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<param index="4" name="normalize" type="bool" default="true" />
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<description>
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Returns a 2D [Image] noise image.
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Note: With [param normalize] set to [code]false[/code] the default implementation expects the noise generator to return values in the range [code]-1.0[/code] to [code]1.0[/code].
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</description>
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</method>
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<method name="get_noise_1d" qualifiers="const">
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<return type="float" />
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<param index="0" name="x" type="float" />
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<description>
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Returns the 1D noise value at the given (x) coordinate.
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</description>
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</method>
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<method name="get_noise_2d" qualifiers="const">
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<return type="float" />
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<param index="0" name="x" type="float" />
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<param index="1" name="y" type="float" />
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<description>
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Returns the 2D noise value at the given position.
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</description>
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</method>
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<method name="get_noise_2dv" qualifiers="const">
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<return type="float" />
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<param index="0" name="v" type="Vector2" />
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<description>
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Returns the 2D noise value at the given position.
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</description>
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</method>
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<method name="get_noise_3d" qualifiers="const">
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<return type="float" />
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<param index="0" name="x" type="float" />
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<param index="1" name="y" type="float" />
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<param index="2" name="z" type="float" />
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<description>
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Returns the 3D noise value at the given position.
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</description>
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</method>
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<method name="get_noise_3dv" qualifiers="const">
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<return type="float" />
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<param index="0" name="v" type="Vector3" />
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<description>
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Returns the 3D noise value at the given position.
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</description>
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</method>
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<method name="get_seamless_image" qualifiers="const">
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<return type="Image" />
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<param index="0" name="width" type="int" />
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<param index="1" name="height" type="int" />
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<param index="2" name="invert" type="bool" default="false" />
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<param index="3" name="in_3d_space" type="bool" default="false" />
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<param index="4" name="skirt" type="float" default="0.1" />
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<param index="5" name="normalize" type="bool" default="true" />
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<description>
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Returns a seamless 2D [Image] noise image.
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Note: With [param normalize] set to [code]false[/code] the default implementation expects the noise generator to return values in the range [code]-1.0[/code] to [code]1.0[/code].
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</description>
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</method>
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</methods>
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</class>
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