perlin-cupy 0.0.3

Perlin-NumPy for GPU

Perlin-CuPy: Perlin-NumPy for GPU

Install | Examples

Perlin-CuPy is a Perlin-NumPy compatible library for GPU-accelerated Perlin Noise generation. Perlin-CuPy acts as a drop-in replacement to run existing Perlin-NumPy code on NVIDIA CUDA platforms.

from perlin_cupy import (
    generate_fractal_noise_2d, generate_fractal_noise_3d,
    generate_perlin_noise_2d, generate_perlin_noise_3d
)

Installation

Wheel (precompiled binary package) is available for Linux (x86_64). We've currently tested only for CUDA 11.3 platform using CuPy v11.3, but it should work for any CuPy version installed in your environment.

Platform	Command
CUDA 11.3	pip install perlin-cupy

Requirements

• NVIDIA CUDA GPU with the Compute Capability 3.0 or larger.
• CUDA Toolkit: v10.0 / v10.1 / v10.2 / v11.0 / v11.1 / v11.2 / v11.3

Python Dependencies

• CuPy: v10.0 / v10.1 / v10.2 / v11.0 / v11.1 / v11.2 / v11.3

Usage

The usage is exactly the same as Perlin-NumPy code.

2D noise

The function generate_perlin_noise_2d generates a 2D texture of perlin noise. Its parameters are:

• shape: shape of the generated array (tuple of 2 ints)
• res: number of periods of noise to generate along each axis (tuple of 2 ints)
• tileable: if the noise should be tileable along each axis (tuple of 2 bools)

Note: shape must be a multiple of res

The function generate_fractal_noise_2d combines several octaves of 2D perlin noise to make 2D fractal noise. Its parameters are:

• shape: shape of the generated array (tuple of 2 ints)
• res: number of periods of noise to generate along each axis (tuple of 2 ints)
• octaves: number of octaves in the noise (int)
• persistence: scaling factor between two octaves (float)
• lacunarity: frequency factor between two octaves (float)
• tileable: if the noise should be tileable along each axis (tuple of 2 bools)

Note: shape must be a multiple of lacunarity^(octaves-1)*res

3D noise

The function generate_perlin_noise_3d generates a 3D texture of perlin noise. Its parameters are:

• shape: shape of the generated array (tuple of 3 ints)
• res: number of periods of noise to generate along each axis (tuple of 3 ints)
• tileable: if the noise should be tileable along each axis (tuple of 3 bools)

Note: shape must be a multiple of res

The function generate_fractal_noise_2d combines several octaves of 3D perlin noise to make 3D fractal noise. Its parameters are:

• shape: shape of the generated array (tuple of 3 ints)
• res: number of periods of noise to generate along each axis (tuple of 3 ints)
• octaves: number of octaves in the noise (int)
• persistence: scaling factor between two octaves (float)
• lacunarity: frequency factor between two octaves (float)
• tileable: if the noise should be tileable along each axis (tuple of 3 bools)

Note: shape must be a multiple of lacunarity^(octaves-1)*res

License

MIT License (See LICENSE file).

Perlin-NumPy is designed based on Perlin-NumPy's API (see LICENSE_THIRD_PARTY file).

Perlin-CuPy is being maintained and developed by João Pedro Vasconcelos.

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