A fast, seeded Simplex Noise implementation for the Carp programming language.

• Seeded Noise State: Independent noise generators that do not rely on global RNG state.
• 2D & 3D Simplex Noise: Implementation based on the canonical Simplex algorithms.
• Fractal Brownian Motion (FBM): Composable fractal noise with configurable octaves, persistence, and lacunarity.
• Performance: Uses unsafe array access for hot paths and avoids allocations during sampling.

Clone this repository into your project or add it as a submodule:

git submodule add https://github.com/sqrew/carp-noise.git

(load "carp-noise/noise.carp")
(use Noise)

(defn main []
  (let [state (make-noise 12345)
        val (noise2d &state 0.5 0.5)]
    (IO.println &(Double.to-string val))))

(let [state (make-noise 123)
      config (FBMConfig.init 6 0.5 2.0)
      val (fbm2d &state 0.1 0.2 &config)]
  (IO.println &(Double.to-string val)))

Run the test suite with:

carp -x test/noise_test.carp

This project is licensed under the MIT License.