/* | |
* Copyright (c) 2009-2010 jMonkeyEngine | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions are | |
* met: | |
* | |
* * Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* | |
* * Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors | |
* may be used to endorse or promote products derived from this software | |
* without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
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*/ | |
package com.jme3.terrain.geomipmap.lodcalc; | |
import com.jme3.export.InputCapsule; | |
import com.jme3.export.JmeExporter; | |
import com.jme3.export.JmeImporter; | |
import com.jme3.export.OutputCapsule; | |
import com.jme3.terrain.Terrain; | |
import com.jme3.terrain.geomipmap.TerrainQuad; | |
import java.io.IOException; | |
/** | |
* Just multiplies the terrain patch size by 2. So every two | |
* patches away the camera is, the LOD changes. | |
* | |
* Set it higher to have the LOD change less frequently. | |
* | |
* @author bowens | |
*/ | |
public class SimpleLodThreshold implements LodThreshold { | |
private int size; // size of a terrain patch | |
private float lodMultiplier = 2; | |
public SimpleLodThreshold() { | |
} | |
public SimpleLodThreshold(Terrain terrain) { | |
if (terrain instanceof TerrainQuad) | |
this.size = ((TerrainQuad)terrain).getPatchSize(); | |
} | |
public SimpleLodThreshold(int patchSize, float lodMultiplier) { | |
this.size = patchSize; | |
} | |
public float getLodMultiplier() { | |
return lodMultiplier; | |
} | |
public void setLodMultiplier(float lodMultiplier) { | |
this.lodMultiplier = lodMultiplier; | |
} | |
public int getSize() { | |
return size; | |
} | |
public void setSize(int size) { | |
this.size = size; | |
} | |
public float getLodDistanceThreshold() { | |
return size*lodMultiplier; | |
} | |
public void write(JmeExporter ex) throws IOException { | |
OutputCapsule oc = ex.getCapsule(this); | |
oc.write(size, "size", 16); | |
oc.write(lodMultiplier, "lodMultiplier", 2); | |
} | |
public void read(JmeImporter im) throws IOException { | |
InputCapsule ic = im.getCapsule(this); | |
size = ic.readInt("size", 16); | |
lodMultiplier = ic.readInt("lodMultiplier", 2); | |
} | |
@Override | |
public LodThreshold clone() { | |
SimpleLodThreshold clone = new SimpleLodThreshold(); | |
clone.size = size; | |
clone.lodMultiplier = lodMultiplier; | |
return clone; | |
} | |
@Override | |
public String toString() { | |
return "SimpleLodThreshold "+size+", "+lodMultiplier; | |
} | |
} |