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/*
* Copyright (c) 2009-2012 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
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.post.filters;
import com.jme3.asset.AssetManager;
import com.jme3.export.InputCapsule;
import com.jme3.export.JmeExporter;
import com.jme3.export.JmeImporter;
import com.jme3.export.OutputCapsule;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;
import com.jme3.post.Filter;
import com.jme3.renderer.RenderManager;
import com.jme3.renderer.ViewPort;
import java.io.IOException;
/**
* A filter to render a fog effect
* @author Rémy Bouquet aka Nehon
*/
public class FogFilter extends Filter {
private ColorRGBA fogColor = ColorRGBA.White.clone();
private float fogDensity = 0.7f;
private float fogDistance = 1000;
/**
* Creates a FogFilter
*/
public FogFilter() {
super("FogFilter");
}
/**
* Create a fog filter
* @param fogColor the color of the fog (default is white)
* @param fogDensity the density of the fog (default is 0.7)
* @param fogDistance the distance of the fog (default is 1000)
*/
public FogFilter(ColorRGBA fogColor, float fogDensity, float fogDistance) {
this();
this.fogColor = fogColor;
this.fogDensity = fogDensity;
this.fogDistance = fogDistance;
}
@Override
protected boolean isRequiresDepthTexture() {
return true;
}
@Override
protected void initFilter(AssetManager manager, RenderManager renderManager, ViewPort vp, int w, int h) {
material = new Material(manager, "Common/MatDefs/Post/Fog.j3md");
material.setColor("FogColor", fogColor);
material.setFloat("FogDensity", fogDensity);
material.setFloat("FogDistance", fogDistance);
}
@Override
protected Material getMaterial() {
return material;
}
/**
* returns the fog color
* @return
*/
public ColorRGBA getFogColor() {
return fogColor;
}
/**
* Sets the color of the fog
* @param fogColor
*/
public void setFogColor(ColorRGBA fogColor) {
if (material != null) {
material.setColor("FogColor", fogColor);
}
this.fogColor = fogColor;
}
/**
* returns the fog density
* @return
*/
public float getFogDensity() {
return fogDensity;
}
/**
* Sets the density of the fog, a high value gives a thick fog
* @param fogDensity
*/
public void setFogDensity(float fogDensity) {
if (material != null) {
material.setFloat("FogDensity", fogDensity);
}
this.fogDensity = fogDensity;
}
/**
* returns the fog distance
* @return
*/
public float getFogDistance() {
return fogDistance;
}
/**
* the distance of the fog. the higer the value the distant the fog looks
* @param fogDistance
*/
public void setFogDistance(float fogDistance) {
if (material != null) {
material.setFloat("FogDistance", fogDistance);
}
this.fogDistance = fogDistance;
}
@Override
public void write(JmeExporter ex) throws IOException {
super.write(ex);
OutputCapsule oc = ex.getCapsule(this);
oc.write(fogColor, "fogColor", ColorRGBA.White.clone());
oc.write(fogDensity, "fogDensity", 0.7f);
oc.write(fogDistance, "fogDistance", 1000);
}
@Override
public void read(JmeImporter im) throws IOException {
super.read(im);
InputCapsule ic = im.getCapsule(this);
fogColor = (ColorRGBA) ic.readSavable("fogColor", ColorRGBA.White.clone());
fogDensity = ic.readFloat("fogDensity", 0.7f);
fogDistance = ic.readFloat("fogDistance", 1000);
}
}
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