A procedural noise generator whose output is a 3D field of concentric spherical shells.
- iOS 10.0+
- macOS 10.12+
- Mac Catalyst 13.0+
- tvOS 10.0+
All noise sources generate infinite 3D fields of noise values, but this fact is especially relevant to sphere noise: by transforming a noise object in 3D, you can sample the noise in ways that “slice” through the spheres. Use this technique (combined with other noise sources and noise processing operations) to create effects such as wood-grain textures.
GKNoise subclasses, a sphere noise source represents a noise generation algorithm and its parameters. To make use of a noise source, first create
GKNoise object from it (and optionally apply operations to that noise object or combine it with other noise objects). Then create a
GKNoise object from your noise object, generating a concrete field of values that you can sample from directly or visualize using the