Perlin

ABU 28-May-2023

Perlin Noise is a type of gradient noise developed by Ken Perlin in 1983.

You can find pure-tcl implementations of the Perlin function at Rosetta code but of course, a binary library such as the following is many many times faster (300x).

This package Perlin, is a binary package implementing the perlin(x,x,z) function in three dimensions.

This package is distributed in a multi-platform bundle, i.e. it can be used on

• Windows 32/64 bit
• Linux 32/64 bit
• MacOS 64 bit

Download

• [L1 ] perlin-1.0.1 Multi-platform package (Windows/Linux/MacOSX)
• [L2 ] Perlin Development-Kit. For developers/maintainers.

Usage:

package require perlin
 # result is a floating number between -1 and +1
set v [perlin 3.14 42.0 7.0]  ;# -->  0.13691995878400012

Together with the small basic library, this package provides a demo app named "Perlin Explorer" you can run for exploring the 3d perlin-space. In particular, it can help developers to fine-tune the parameters and the "step" increments to control the perlin(x,y,z) variations.