cudaNoise

Library of common noise functions for CUDA kernels

Device functions for use in CUDA kernels which provide tools for generating procedural 3D noise. Basis noise functions can be combined for fractional Brownian motion, as well as used to perturb the input vector for other noise functions for turbulence effects.

Basis functions

Basis functions include: discrete noise, tricubic value noise, perlin gradient noise, simplex noise, spots and worley noise.

Derived functions

Repeater turbulence of perlin noise functions.

Usage

cudaNoise comes as a single-header include library. Simply include cuda_noise.cuh in your CUDA source file, then call the cudaNoise functions from kernel or device functions.

NOTE: cudaNoise is designed to be used from inside CUDA kernels and cannot directly be called from host code

There is a simple texture viewer included in the /examples directory.

Reference

Basis functions

3D Checker pattern

float checker(float3 pos, float scale, int seed)

3D Discrete noise

float discreteNoise(float3 pos, float scale, int seed)

3D Linear value noise

float linearValue(float3 pos, float scale, int seed)

3D Cubic value noise

float cubicValue(float3 pos, float scale, int seed)

3D Perlin gradient noise

float perlinNoise(float3 pos, float scale, int seed)

3D Simplex noise

float simplexNoise(float3 pos, float scale, int seed)

3D Worley cellular noise

float worleyNoise(float3 pos, float scale, int seed, float size, int minNum, int maxNum, float jitter)

3D Spots

float spots(float3 pos, float scale, int seed, float size, int minNum, int maxNum, float jitter, profileShape shape)

TODO

• Implement 4D noise functions.
• Optimization work.
• Add more types of cellular functions.
• Cleaning up the interface.

Contributions are more than welcome!