SimplexNoise 2.0.0

.NET Core 2.2 .NET Standard 1.0 .NET Framework 4.0
Install-Package SimplexNoise -Version 2.0.0
dotnet add package SimplexNoise --version 2.0.0
<PackageReference Include="SimplexNoise" Version="2.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add SimplexNoise --version 2.0.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: SimplexNoise, 2.0.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install SimplexNoise as a Cake Addin
#addin nuget:?package=SimplexNoise&version=2.0.0

// Install SimplexNoise as a Cake Tool
#tool nuget:?package=SimplexNoise&version=2.0.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Simplex Noise

Simplex Noise implementation offering 1D, 2D, and 3D forms w/ values in the range of 0 to 255. Based on work by Heikki Törmälä (2012) and Stefan Gustavson (2006). Core algorithm designed by Ken Perlin (2001).

What does this library provide?

This library provides 1D, 2D, and 3D simplex noise, which is useful for procedural content generation - for example, terrain and particles in game development or visual media in movies. Compared to classic Perlin noise, simplex noise has no noticable directional artefacts, and has a well-defined and continuous (coherent) gradient. This means content will be visually smoother, with a lower computational complexity especially at higher orders.

Computations use the following r^2 values to determine kernel contribution:

Order Value
1D 1.0
2D 0.5
3D 0.6

Why use simplex noise?

Classic noise has problems with non-uniformity throughout its domain of definition, particularly for 2D planar slices of 3D and 4D noise, it has visible axis-aligned artefacts, it is expensive to compute for 4D and up, and its derivative in 3D and 4D is a very complicated high order polynomial.

Simplex noise is several times faster to compute, particularly for 4D and up, it does not have nearly as many visual problems with non-uniformity and axis-aligned artefacts, and it has a simple polynomial derivative everywhere, even for higher dimensions.

Simplex noise looks better, but different, and is thus visually incompatible with classic Perlin noise. The difference in feature size and range of values can easily be compensated for by a few simple scaling multiplications, but the different visual character might change the visual result of shaders that depend heavily on one or two components of noise. (Fractal sums of several noise components should still look about the same, though.)

Example of implementation

Simplex.Noise.Seed = 209323094; // Optional
int length = 10, width = 15;
float scale = 0.10f;
float[,] noiseValues = Simplex.Noise.Calc2D(length, width, scale);

API

  • Simplex.Noise.Seed - Arbitrary integer seed used to generate lookup table used internally.
  • float[] Simplex.Noise.Calc1D - returns an array containing 1D Simplex noise
  • float[,] Simplex.Noise.Calc2D - returns an array containing 2D Simplex noise
  • float[,,] Simplex.Noise.Calc3D - returns an array containing 3D Simplex noise
  • float Simplex.Noise.CalcPixel1D - returns the value of an index of 1D simplex noise
  • float Simplex.Noise.CalcPixel2D - returns the value of an index of 2D simplex noise
  • float Simplex.Noise.CalcPixel3D - returns the value of an index of 3D simplex noise
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.0 netstandard1.1 netstandard1.2 netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net40 net403 net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen30 tizen40 tizen60
Universal Windows Platform uap uap10.0
Windows Phone wp8 wp81 wpa81
Windows Store netcore netcore45 netcore451
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETCoreApp 2.2

    • No dependencies.
  • .NETFramework 4.0

    • No dependencies.
  • .NETFramework 4.5

    • No dependencies.
  • .NETFramework 4.7.2

    • No dependencies.
  • .NETStandard 1.0

  • .NETStandard 2.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last updated
2.0.0 6,032 3/14/2019