Noise¶

Procedural noise for textures, terrain, and VFX. Sources live in Runtime/Noise/.

2D / 3D primitives¶

using static Unity.Mathematics.mathx;

float2 uv = ...;
float n = uv.simplex2();
float p = uv.perlin2();
float w = uv.worley2();

3D counterparts: simplex3, perlin3, worley3, etc.

float f = uv.fbm2(octaves: 4, lacunarity: 2f, gain: 0.5f);

Fill a NativeArray<float> on a grid with Jobify:

output.FillNoise2D(size, origin, spacing, JobParallelFor.NoiseKind.Simplex2);

Noise output is regression-tested in GoldenNoiseTests.cs. After intentional algorithm changes:

python .ci/scripts/golden_noise.py

Then update expected values in the test file.