package core:math/noise
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    Overview

    OpenSimplex2 noise implementation.

    Ported from https://github.com/KdotJPG/OpenSimplex2.
Copyright 2022 Yuki2 (https://github.com/NoahR02)

    Index

    Types (3)
    Constants (0)

    This section is empty.

    Variables (0)

    This section is empty.

    Procedure Groups (0)

    This section is empty.

    Types

    Vec2 ¶
    Source

    Vec2 :: [2]f64
     

    Input coordinate vectors

    Vec3 ¶
    Source

    Vec3 :: [3]f64

    Vec4 ¶
    Source

    Vec4 :: [4]f64

    Constants

    This section is empty.

    Variables

    This section is empty.

    Procedures

    noise_2d ¶
    Source

    noise_2d :: proc(seed: i64, coord: [2]f64) -> (value: f32) {…}
     

    2D Simplex noise, standard lattice orientation.

    noise_2d_improve_x ¶
    Source

    noise_2d_improve_x :: proc(seed: i64, coord: [2]f64) -> (value: f32) {…}
     

    2D Simplex noise, with Y pointing down the main diagonal.

    Might be better for a 2D sandbox style game, where Y is vertical.
Probably slightly less optimal for heightmaps or continent maps,
unless your map is centered around an equator. It's a subtle
difference, but the option is here to make it an easy choice.

    noise_3d_fallback ¶
    Source

    noise_3d_fallback :: proc(seed: i64, coord: [3]f64) -> (value: f32) {…}
     

    3D OpenSimplex2 noise, fallback rotation option

    Use `noise_3d_improve_xy` or `noise_3d_improve_xz` instead, wherever appropriate.
They have less diagonal bias. This function's best use is as a fallback.

    noise_3d_improve_xy ¶
    Source

    noise_3d_improve_xy :: proc(seed: i64, coord: [3]f64) -> (value: f32) {…}
     

    3D OpenSimplex2 noise, with better visual isotropy in (X, Y).

    Recommended for 3D terrain and time-varied animations.
The Z coordinate should always be the "different" coordinate in whatever your use case is.
If Y is vertical in world coordinates, call `noise_3d_improve_xz(x, z, Y)` or use `noise_3d_xz_before_y`.
If Z is vertical in world coordinates, call `noise_3d_improve_xz(x, y, Z)`.
For a time varied animation, call `noise_3d_improve_xz(x, y, T)`.

    noise_3d_improve_xz ¶
    Source

    noise_3d_improve_xz :: proc(seed: i64, coord: [3]f64) -> (value: f32) {…}
     

    3D OpenSimplex2 noise, with better visual isotropy in (X, Z).

    Recommended for 3D terrain and time-varied animations.
The Y coordinate should always be the "different" coordinate in whatever your use case is.
If Y is vertical in world coordinates, call `noise_3d_improve_xz(x, Y, z)`.
If Z is vertical in world coordinates, call `noise_3d_improve_xz(x, Z, y)` or use `noise_3d_improve_xy`.
For a time varied animation, call `noise_3d_improve_xz(x, T, y)` or use `noise_3d_improve_xy`.

    noise_4d_fallback ¶
    Source

    noise_4d_fallback :: proc(seed: i64, coord: [4]f64) -> (value: f32) {…}
     

    4D OpenSimplex2 noise, fallback lattice orientation.

    noise_4d_improve_xyz ¶
    Source

    noise_4d_improve_xyz :: proc(seed: i64, coord: [4]f64) -> (value: f32) {…}
     

    4D OpenSimplex2 noise, with XYZ oriented like noise_3d_fallback

    and W for an extra degree of freedom. W repeats eventually.
Recommended for time-varied animations which texture a 3D object (W=time)
where there isn't a clear distinction between horizontal and vertical

    noise_4d_improve_xyz_improve_xy ¶
    Source

    noise_4d_improve_xyz_improve_xy :: proc(seed: i64, coord: [4]f64) -> (value: f32) {…}
     

    4D OpenSimplex2 noise, with XYZ oriented like noise_3d_improve_xy

    and W for an extra degree of freedom. W repeats eventually.
Recommended for time-varied animations which texture a 3D object (W=time)
in a space where Z is vertical.

    noise_4d_improve_xyz_improve_xz ¶
    Source

    noise_4d_improve_xyz_improve_xz :: proc(seed: i64, coord: [4]f64) -> (value: f32) {…}
     

    4D OpenSimplex2 noise, with XYZ oriented like noise_3d_improve_xz

    and W for an extra degree of freedom. W repeats eventually.
Recommended for time-varied animations which texture a 3D object (W=time)
in a space where Y is vertical.

    Procedure Groups

    This section is empty.

    Source Files

    Generation Information

    Generated with odin version dev-2023-10 (vendor "odin") Windows_amd64 @ 2023-10-03 21:09:46.666125600 +0000 UTC