/*
JWildfire - an image and animation processor written in Java
Copyright (C) 1995-2011 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.variation;
import static org.jwildfire.base.mathlib.MathLib.M_2PI;
import static org.jwildfire.base.mathlib.MathLib.M_PI;
import static org.jwildfire.base.mathlib.MathLib.acos;
import static org.jwildfire.base.mathlib.MathLib.cos;
import static org.jwildfire.base.mathlib.MathLib.exp;
import static org.jwildfire.base.mathlib.MathLib.log;
import static org.jwildfire.base.mathlib.MathLib.sin;
import org.jwildfire.create.tina.base.XForm;
import org.jwildfire.create.tina.base.XYZPoint;
public class SineBlurFunc extends VariationFunc {
private static final long serialVersionUID = 1L;
public static final String PARAM_POWER = "power";
private static final String[] paramNames = { PARAM_POWER };
private double power = 1.0;
@Override
public void transform(FlameTransformationContext pContext, XForm pXForm, XYZPoint pAffineTP, XYZPoint pVarTP, double pAmount) {
// sineblur by Zyorg, http://zy0rg.deviantart.com/art/Blur-Package-347648919
double power = this.power;
if (power < 0.0)
power = 0.0;
double ang = pContext.random() * M_2PI;
double r = pAmount * (power == 1.0 ? acos(pContext.random() * 2.0 - 1.0) / M_PI : acos(exp(log(pContext.random()) * power) * 2.0 - 1.0) / M_PI);
double s = sin(ang);
double c = cos(ang);
pVarTP.x += r * c;
pVarTP.y += r * s;
if (pContext.isPreserveZCoordinate()) {
pVarTP.z += pAmount * pAffineTP.z;
}
}
@Override
public String[] getParameterNames() {
return paramNames;
}
@Override
public Object[] getParameterValues() {
return new Object[] { power };
}
@Override
public void setParameter(String pName, double pValue) {
if (PARAM_POWER.equalsIgnoreCase(pName))
power = pValue;
else
throw new IllegalArgumentException(pName);
}
@Override
public String getName() {
return "sineblur";
}
}