Open Simplex Noise Generator

An OpenSimplex noise generation library in Java which supports 2D, 3D, and 4D OpenSimplex noise generation. For use in Java 8+ environments.

Import using Maven:

<dependency>
    <groupId>com.raylabz</groupId>
    <artifactId>opensimplex</artifactId>
    <version>1.0.3/version>
</dependency>

or

com.raylabz:opensimplex:1.0.3

Download jar:

Download

Updates in v1.0.3:

• Added Range class to model the range of the generated values.
• Added RangedValue class to model generated values in a specified range.
• RangedValue objects can now be easily shifted to a different range using the getValue(Range range) method.
• The generator's methods now return:
  • eval() returns RangedValue.
  • getNoise2D() returns RangedValue.
  • getNoise3D() returns RangedValue.
  • getNoise4D() returns RangedValue.
  • getNoise2DArray() returns RangedValue[].
• To retrieve the original generated value (in the original range of -1 to 1) of a RangedValue use getValue() without specifying a range.

Usage

Create generator with random seed:

OpenSimplexNoise noise = new OpenSimplexNoise();

Create generator with specified seed:

long seed = 123;
OpenSimplexNoise noise = new OpenSimplexNoise(seed);

Generate a value for position (0,0):

RangedValue value = noise.getNoise2D(0, 0);

Get double value from RangedValue:

double originalValue = value.getValue();

Shift value from original range to a new range (-255, 255):

double shiftedValue = value.getValue(new Range(-255, 255));

Generate an 2D array of values for positions (0,0) to (2500, 2500):

final RangedValue[][] noise2DArray = noise.getNoise2DArray(0, 0, 2500, 2500);