/*
JWildfire - an image and animation processor written in Java
Copyright (C) 1995-2016 Andreas Maschke
This is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
General Public License as published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with this software;
if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jwildfire.create.tina.base.solidrender;
import org.jwildfire.base.mathlib.MathLib;
public enum LightDiffFuncPreset implements LightDiffFunc {
COSA {
@Override
public double evaluate(double pCosa) {
return pCosa;
}
},
COSA_SQUARE {
@Override
public double evaluate(double pCosa) {
return pCosa * pCosa;
}
},
COSA_HALVE {
@Override
public double evaluate(double pCosa) {
return pCosa * 0.5 + 0.5;
}
},
COSA_HALVE_SQUARE {
@Override
public double evaluate(double pCosa) {
return MathLib.sqr(pCosa * 0.5 + 0.5);
}
};
}