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2 years ago
( function () {
const _hsl = {};
class ColorConverter {
static setHSV( color, h, s, v ) {
// https://gist.github.com/xpansive/1337890#file-index-js
h = THREE.MathUtils.euclideanModulo( h, 1 );
s = THREE.MathUtils.clamp( s, 0, 1 );
v = THREE.MathUtils.clamp( v, 0, 1 );
return color.setHSL( h, s * v / ( ( h = ( 2 - s ) * v ) < 1 ? h : 2 - h ), h * 0.5 );
}
static getHSV( color, target ) {
color.getHSL( _hsl );
// based on https://gist.github.com/xpansive/1337890#file-index-js
_hsl.s *= _hsl.l < 0.5 ? _hsl.l : 1 - _hsl.l;
target.h = _hsl.h;
target.s = 2 * _hsl.s / ( _hsl.l + _hsl.s );
target.v = _hsl.l + _hsl.s;
return target;
}
}
THREE.ColorConverter = ColorConverter;
} )();