mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-28 06:37:11 +01:00
115 lines
5.0 KiB
XML
115 lines
5.0 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
|
||
<class name="OpenSimplexNoise" inherits="Resource" version="4.5">
|
||
<brief_description>
|
||
Noise generator based on Open Simplex.
|
||
</brief_description>
|
||
<description>
|
||
This resource allows you to configure and sample a fractal noise space. Here is a brief usage example that configures an OpenSimplexNoise and gets samples at various positions and dimensions:
|
||
[codeblock]
|
||
var noise = OpenSimplexNoise.new()
|
||
|
||
# Configure
|
||
noise.seed = randi()
|
||
noise.octaves = 4
|
||
noise.period = 20.0
|
||
noise.persistence = 0.8
|
||
|
||
# Sample
|
||
print("Values:")
|
||
print(noise.get_noise_2d(1.0, 1.0))
|
||
print(noise.get_noise_3d(0.5, 3.0, 15.0))
|
||
print(noise.get_noise_4d(0.5, 1.9, 4.7, 0.0))
|
||
[/codeblock]
|
||
</description>
|
||
<tutorials>
|
||
</tutorials>
|
||
<methods>
|
||
<method name="get_image" qualifiers="const">
|
||
<return type="Image" />
|
||
<argument index="0" name="width" type="int" />
|
||
<argument index="1" name="height" type="int" />
|
||
<argument index="2" name="noise_offset" type="Vector2" default="Vector2( 0, 0 )" />
|
||
<description>
|
||
Generate a noise image in [constant Image.FORMAT_L8] format with the requested [code]width[/code] and [code]height[/code], based on the current noise parameters. If [code]noise_offset[/code] is specified, then the offset value is used as the coordinates of the top-left corner of the generated noise.
|
||
</description>
|
||
</method>
|
||
<method name="get_noise_1d" qualifiers="const">
|
||
<return type="float" />
|
||
<argument index="0" name="x" type="float" />
|
||
<description>
|
||
Returns the 1D noise value [code][-1,1][/code] at the given x-coordinate.
|
||
[b]Note:[/b] This method actually returns the 2D noise value [code][-1,1][/code] with fixed y-coordinate value 0.0.
|
||
</description>
|
||
</method>
|
||
<method name="get_noise_2d" qualifiers="const">
|
||
<return type="float" />
|
||
<argument index="0" name="x" type="float" />
|
||
<argument index="1" name="y" type="float" />
|
||
<description>
|
||
Returns the 2D noise value [code][-1,1][/code] at the given position.
|
||
</description>
|
||
</method>
|
||
<method name="get_noise_2dv" qualifiers="const">
|
||
<return type="float" />
|
||
<argument index="0" name="pos" type="Vector2" />
|
||
<description>
|
||
Returns the 2D noise value [code][-1,1][/code] at the given position.
|
||
</description>
|
||
</method>
|
||
<method name="get_noise_3d" qualifiers="const">
|
||
<return type="float" />
|
||
<argument index="0" name="x" type="float" />
|
||
<argument index="1" name="y" type="float" />
|
||
<argument index="2" name="z" type="float" />
|
||
<description>
|
||
Returns the 3D noise value [code][-1,1][/code] at the given position.
|
||
</description>
|
||
</method>
|
||
<method name="get_noise_3dv" qualifiers="const">
|
||
<return type="float" />
|
||
<argument index="0" name="pos" type="Vector3" />
|
||
<description>
|
||
Returns the 3D noise value [code][-1,1][/code] at the given position.
|
||
</description>
|
||
</method>
|
||
<method name="get_noise_4d" qualifiers="const">
|
||
<return type="float" />
|
||
<argument index="0" name="x" type="float" />
|
||
<argument index="1" name="y" type="float" />
|
||
<argument index="2" name="z" type="float" />
|
||
<argument index="3" name="w" type="float" />
|
||
<description>
|
||
Returns the 4D noise value [code][-1,1][/code] at the given position.
|
||
</description>
|
||
</method>
|
||
<method name="get_seamless_image" qualifiers="const">
|
||
<return type="Image" />
|
||
<argument index="0" name="size" type="int" />
|
||
<description>
|
||
Generate a tileable noise image in [constant Image.FORMAT_L8] format, based on the current noise parameters. Generated seamless images are always square ([code]size[/code] × [code]size[/code]).
|
||
[b]Note:[/b] Seamless noise has a lower contrast compared to non-seamless noise. This is due to the way noise uses higher dimensions for generating seamless noise.
|
||
</description>
|
||
</method>
|
||
</methods>
|
||
<members>
|
||
<member name="lacunarity" type="float" setter="set_lacunarity" getter="get_lacunarity" default="2.0">
|
||
Difference in period between [member octaves].
|
||
</member>
|
||
<member name="octaves" type="int" setter="set_octaves" getter="get_octaves" default="3">
|
||
Number of OpenSimplex noise layers that are sampled to get the fractal noise. Higher values result in more detailed noise but take more time to generate.
|
||
[b]Note:[/b] The maximum allowed value is 9.
|
||
</member>
|
||
<member name="period" type="float" setter="set_period" getter="get_period" default="64.0">
|
||
Period of the base octave. A lower period results in a higher-frequency noise (more value changes across the same distance).
|
||
</member>
|
||
<member name="persistence" type="float" setter="set_persistence" getter="get_persistence" default="0.5">
|
||
Contribution factor of the different octaves. A [code]persistence[/code] value of 1 means all the octaves have the same contribution, a value of 0.5 means each octave contributes half as much as the previous one.
|
||
</member>
|
||
<member name="seed" type="int" setter="set_seed" getter="get_seed" default="0">
|
||
Seed used to generate random values, different seeds will generate different noise maps.
|
||
</member>
|
||
</members>
|
||
<constants>
|
||
</constants>
|
||
</class>
|