/*
* 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.material.Material;
import com.jme3.post.Filter;
import com.jme3.renderer.RenderManager;
import com.jme3.renderer.ViewPort;
/**
*
* @author Phate666
* @version 1.0 initial version
* @version 1.1 added luma
*/
public class GammaCorrectionFilter extends Filter
{
private float gamma = 2.0f;
private boolean computeLuma = false;
public GammaCorrectionFilter()
{
super("GammaCorrectionFilter");
}
public GammaCorrectionFilter(float gamma)
{
this();
this.setGamma(gamma);
}
@Override
protected Material getMaterial()
{
return material;
}
@Override
protected void initFilter(AssetManager manager,
RenderManager renderManager, ViewPort vp, int w, int h)
{
material = new Material(manager,
"Common/MatDefs/Post/GammaCorrection.j3md");
material.setFloat("gamma", gamma);
material.setBoolean("computeLuma", computeLuma);
}
public float getGamma()
{
return gamma;
}
/**
* set to 0.0 to disable gamma correction
* @param gamma
*/
public void setGamma(float gamma)
{
if (material != null)
{
material.setFloat("gamma", gamma);
}
this.gamma = gamma;
}
public boolean isComputeLuma()
{
return computeLuma;
}
public void setComputeLuma(boolean computeLuma)
{
if (material != null)
{
material.setBoolean("computeLuma", computeLuma);
}
this.computeLuma = computeLuma;
}
}