我的书签
添加书签
移除书签OpenSimplexNoise
Noise generator based on Open Simplex.
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:
| get_image ( width, int height ) const | |
| get_noise_1d ( x ) const | |
| float | ( float x, y ) const |
| float | ( Vector2 pos ) const |
| get_noise_3d ( x, float y, z ) const | |
| float | ( Vector3 pos ) const |
| get_noise_4d ( x, float y, z, float w ) const | |
| get_seamless_image ( size ) const |
Difference in period between octaves.
- octaves
| Default | 3 |
| Setter | set_octaves(value) |
| Getter | get_octaves() |
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.
Note: The maximum allowed value is 9.
- float period
- persistence
| Default | 0.5 |
| Setter | set_persistence(value) |
| Getter | get_persistence() |
Contribution factor of the different octaves. A persistence 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.
- int seed
Seed used to generate random values, different seeds will generate different noise maps.
- get_image ( int width, height ) const
Generate a noise image with the requested width and height, based on the current noise parameters.
Returns the 1D noise value [-1,1] at the given x-coordinate.
Note: This method actually returns the 2D noise value with fixed y-coordinate value 0.0.
- get_noise_2dv ( Vector2 pos ) const
Returns the 2D noise value [-1,1] at the given position.
Returns the 3D noise value [-1,1] at the given position.
- get_noise_3dv ( Vector3 pos ) const
Returns the 3D noise value [-1,1] at the given position.
Returns the 4D noise value [-1,1] at the given position.
Generate a tileable noise image, based on the current noise parameters. Generated seamless images are always square (size × ).
