texture-generator
Procedural Equirectangular Textures
utils.js
Module. Collects utility functions useful for custom patterns.
retexture(…)
Function. Adjusts the parameters of a texture generator, by collecting values provided by the user and the default values of the generator. Then creates a texture. Returns the texture. This function is used internally by the texture generators.
retexture( opt, defaults, options, pattern )
where:
opt– user-defined parameters (object)defaults– default values for the user-defined parameters (object)options– pattern-specifix function that compiles the parameters (function)pattern– texture pattern function (function)
map(…)
Function. Calculates linear mapping of a value from one interval (called input) to another interval (called output). Returnes the mapped value.
map( x )
map( x, toMin, toMax )
map( x, toMin, toMax, fromMin, fromMax )
where:
x– value to be mapped (number)toMin– lower bound of output interval (number, default 0)toMax– upper bound of output interval (number, default 1)fromMin– lower bound of input interval (number, default 0)fromMax– upper bound of input interval (number, default 100)
Note: Function map is similar to THREE.MathUtils.mapLinear but the intervals are swapped.
mapExp(…)
Function. Calculates exponential mapping of a value from one interval (called input) to another interval (called output). Returnes the mapped value.
mapExp( x )
mapExp( x, toMin, toMax )
mapExp( x, toMin, toMax, fromMin, fromMax )
where:
x– value to be mapped (number)toMin– lower bound of output interval (number, default 0)toMax– upper bound of output interval (number, default 1)fromMin– lower bound of input interval (number, default 0)fromMax– upper bound of input interval (number, default 100)