Noise

Inherits: Resource < RefCounted < Object

Inherited By: FastNoiseLite

Abstract base class for noise generators.

Description

This class defines the interface for noise generation libraries to inherit from.

A default get_seamless_image implementation is provided for libraries that do not provide seamless noise. This function requests a larger image from the get_image method, reverses the quadrants of the image, then uses the strips of extra width to blend over the seams.

Inheriting noise classes can optionally override this function to provide a more optimal algorithm.

Methods

Method Descriptions

Image get_image ( int width, int height, bool invert=false, bool in_3d_space=false, bool normalize=true ) const

Returns an Image containing 2D noise values.

Note: With normalize set to false, the default implementation expects the noise generator to return values in the range -1.0 to 1.0.

Image[] get_image_3d ( int width, int height, int depth, bool invert=false, bool normalize=true ) const

Returns an Array of Images containing 3D noise values for use with ImageTexture3D.create.

Note: With normalize set to false, the default implementation expects the noise generator to return values in the range -1.0 to 1.0.

float get_noise_1d ( float x ) const

Returns the 1D noise value at the given (x) coordinate.

float get_noise_2d ( float x, float y ) const

Returns the 2D noise value at the given position.

float get_noise_2dv ( Vector2 v ) const

Returns the 2D noise value at the given position.

float get_noise_3d ( float x, float y, float z ) const

Returns the 3D noise value at the given position.

float get_noise_3dv ( Vector3 v ) const

Returns the 3D noise value at the given position.

Image get_seamless_image ( int width, int height, bool invert=false, bool in_3d_space=false, float skirt=0.1, bool normalize=true ) const

Returns an Image containing seamless 2D noise values.

Note: With normalize set to false, the default implementation expects the noise generator to return values in the range -1.0 to 1.0.

Image[] get_seamless_image_3d ( int width, int height, int depth, bool invert=false, float skirt=0.1, bool normalize=true ) const

Returns an Array of Images containing seamless 3D noise values for use with ImageTexture3D.create.

Note: With normalize set to false, the default implementation expects the noise generator to return values in the range -1.0 to 1.0.

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