/*
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_PI;
import static org.jwildfire.base.mathlib.MathLib.sinAndCos;
import odk.lang.DoubleWrapper;
import org.jwildfire.create.tina.base.Layer;
import org.jwildfire.create.tina.base.XForm;
import org.jwildfire.create.tina.base.XYZPoint;
public class Blur3DFunc extends SimpleVariationFunc {
private static final long serialVersionUID = 1L;
private double gauss_rnd[] = new double[4];
private int gauss_N;
private DoubleWrapper sina = new DoubleWrapper();
private DoubleWrapper cosa = new DoubleWrapper();
private DoubleWrapper sinb = new DoubleWrapper();
private DoubleWrapper cosb = new DoubleWrapper();
@Override
public void transform(FlameTransformationContext pContext, XForm pXForm, XYZPoint pAffineTP, XYZPoint pVarTP, double pAmount) {
double angle = pContext.random() * 2 * M_PI;
sinAndCos(angle, sina, cosa);
double r = pAmount * (gauss_rnd[0] + gauss_rnd[1] + gauss_rnd[2] + gauss_rnd[3] - 2);
gauss_rnd[gauss_N] = pContext.random();
gauss_N = (gauss_N + 1) & 3;
angle = pContext.random() * M_PI;
sinAndCos(angle, sinb, cosb);
pVarTP.x += r * sinb.value * cosa.value;
pVarTP.y += r * sinb.value * sina.value;
pVarTP.z += r * cosb.value;
}
@Override
public String getName() {
return "blur3D";
}
@Override
public void init(FlameTransformationContext pContext, Layer pLayer, XForm pXForm, double pAmount) {
gauss_rnd[0] = pContext.random();
gauss_rnd[1] = pContext.random();
gauss_rnd[2] = pContext.random();
gauss_rnd[3] = pContext.random();
gauss_N = 0;
}
}