SolidRandomFlameGenerator.java

/*
  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.randomflame;

import org.jwildfire.base.Tools;
import org.jwildfire.create.tina.base.Flame;
import org.jwildfire.create.tina.base.solidrender.DistantLight;
import org.jwildfire.create.tina.variation.VariationFunc;
import org.jwildfire.create.tina.variation.VariationFuncList;
import org.jwildfire.create.tina.variation.mesh.OBJMeshPrimitiveWFFunc;
import org.jwildfire.create.tina.variation.plot.WFFuncPresetsStore;

public abstract class SolidRandomFlameGenerator extends RandomFlameGenerator {

  protected void randomizeSolidRenderingSettings(Flame flame) {
    flame.getSolidRenderSettings().setSolidRenderingEnabled(true);
    flame.setPreserveZ(true);
  }

  protected VariationFunc getRandomVariation() {
    String name = getRandomVariationName();
    return VariationFuncList.getVariationFuncInstance(name, true);
  }

  private String getRandomVariationName() {
    while (true) {
      String name = VariationFuncList.getRandomVariationname();
      if (!name.startsWith("fract") && !name.startsWith("inflate") && !name.startsWith("pre_") && !name.startsWith("post_") && !name.contains("plot") && !name.contains("mesh") && !name.contains("blur")) {
        return name;
      }
    }
  }

  protected VariationFunc getRandom3DShape() {
    VariationFunc varFunc;
    switch (Tools.randomInt(7)) {
      case 0: {
        varFunc = VariationFuncList.getVariationFuncInstance("yplot2d_wf", true);
        varFunc.setParameter("preset_id", WFFuncPresetsStore.getYPlot2DWFFuncPresets().getRandomPresetId());
        varFunc.setParameter("xmin", -3);
        varFunc.setParameter("xmax", 2);
        varFunc.setParameter("ymin", -4);
        varFunc.setParameter("ymax", 4);
        varFunc.setParameter("zmin", -2);
        varFunc.setParameter("zmax", 2);
        varFunc.setParameter("direct_color", 1);
        break;
      }
      case 1: {
        varFunc = VariationFuncList.getVariationFuncInstance("yplot3d_wf", true);
        varFunc.setParameter("preset_id", WFFuncPresetsStore.getYPlot3DWFFuncPresets().getRandomPresetId());
        varFunc.setParameter("xmin", -3);
        varFunc.setParameter("xmax", 2);
        varFunc.setParameter("ymin", -2);
        varFunc.setParameter("ymax", 2);
        varFunc.setParameter("zmin", -2);
        varFunc.setParameter("zmax", 2);
        varFunc.setParameter("direct_color", 1);
        break;
      }
      case 2:
      case 3: {
        varFunc = VariationFuncList.getVariationFuncInstance("parplot2d_wf", true);
        varFunc.setParameter("preset_id", WFFuncPresetsStore.getParPlot2DWFFuncPresets().getRandomPresetId());
        varFunc.setParameter("umin", -Math.PI);
        varFunc.setParameter("umax", Math.PI);
        varFunc.setParameter("vmin", -3);
        varFunc.setParameter("vmax", 8);
        varFunc.setParameter("direct_color", 1);
        varFunc.setParameter("color_mode", Math.random() > 0.666 ? 2 : Math.random() < 0.5 ? 0 : 1);
        break;
      }
      case 4:
      case 6: {
        varFunc = VariationFuncList.getVariationFuncInstance("dla3d_wf", true);
        varFunc.setParameter("max_iter", 100 + Math.random() * 200);
        varFunc.setParameter("inner_blur_radius", Math.random() * 0.5 + 0.1);
        varFunc.setParameter("outer_blur_radius", Math.random() * 0.5);
        varFunc.setParameter("glue_radius", 0.6 + Math.random() * 0.8);
        break;
      }
      case 5:
      default: {
        varFunc = VariationFuncList.getVariationFuncInstance("obj_mesh_primitive_wf", true);
        varFunc.setParameter("primitive", Tools.randomInt(OBJMeshPrimitiveWFFunc.LOWPOLY_SHAPE_COUNT));
        varFunc.setParameter("scale_x", 1);
        varFunc.setParameter("scale_y", 1);
        varFunc.setParameter("scale_z", 1);
        varFunc.setParameter("offset_x", 0);
        varFunc.setParameter("offset_y", 0);
        varFunc.setParameter("offset_z", 0);
        varFunc.setParameter("subdiv_level", Math.random() > 0.5 ? 0 : Math.random() > 0.5 ? 2 : 1);
        varFunc.setParameter("subdiv_smooth_passes", 12);
        varFunc.setParameter("subdiv_smooth_lambda", 0.42);
        varFunc.setParameter("subdiv_smooth_mu", -0.45);
        break;
      }
    }
    return varFunc;
  }

  @Override
  public double getMaxCoverage() {
    return 0.75;
  }

  @Override
  protected Flame postProcessFlameBeforeRendering(RandomFlameGeneratorState pState, Flame pFlame) {
    pFlame.setDefaultSolidRenderingSettings();
    pFlame.setSpatialOversampling(1);

    if (pFlame.getSolidRenderSettings().getLights().size() > 1) {
      DistantLight light = pFlame.getSolidRenderSettings().getLights().get(0);
      light.setAltitude(60 - 120.0 * Math.random());
      light.setAzimuth(30.0 - 60.0 * Math.random());
    }
    if (pFlame.getSolidRenderSettings().getLights().size() > 2) {
      DistantLight light = pFlame.getSolidRenderSettings().getLights().get(1);
      light.setAltitude(40.0 - 80.0 * Math.random());
      light.setAzimuth(80.0 - 160.0 * Math.random());
    }
    return pFlame;
  }
}