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Diffstat (limited to 'engine/src/core-effects/com/jme3/post/filters/PosterizationFilter.java')
| -rw-r--r-- | engine/src/core-effects/com/jme3/post/filters/PosterizationFilter.java | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/engine/src/core-effects/com/jme3/post/filters/PosterizationFilter.java b/engine/src/core-effects/com/jme3/post/filters/PosterizationFilter.java new file mode 100644 index 0000000..c980eda --- /dev/null +++ b/engine/src/core-effects/com/jme3/post/filters/PosterizationFilter.java @@ -0,0 +1,147 @@ +/* + * 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 + * 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; + +/** + * A Post Processing filter to change colors appear with sharp edges as if the + * available amount of colors available was not enough to draw the true image. + * Possibly useful in cartoon styled games. Use the strength variable to lessen + * influence of this filter on the total result. Values from 0.2 to 0.7 appear + * to give nice results. + * + * Based on an article from Geeks3D: + * <a href="http://www.geeks3d.com/20091027/shader-library-posterization-post-processing-effect-glsl/" rel="nofollow">http://www.geeks3d.com/20091027/shader-library-posterization-post-processing-effect-glsl/</a> + * + * @author: Roy Straver a.k.a. Baal Garnaal + */ +public class PosterizationFilter extends Filter { + + private int numColors = 8; + private float gamma = 0.6f; + private float strength = 1.0f; + + /** + * Creates a posterization Filter + */ + public PosterizationFilter() { + super("PosterizationFilter"); + } + + /** + * Creates a posterization Filter with the given number of colors + * @param numColors + */ + public PosterizationFilter(int numColors) { + this(); + this.numColors = numColors; + } + + /** + * Creates a posterization Filter with the given number of colors and gamma + * @param numColors + * @param gamma + */ + public PosterizationFilter(int numColors, float gamma) { + this(numColors); + this.gamma = gamma; + } + + @Override + protected void initFilter(AssetManager manager, RenderManager renderManager, ViewPort vp, int w, int h) { + material = new Material(manager, "Common/MatDefs/Post/Posterization.j3md"); + material.setInt("NumColors", numColors); + material.setFloat("Gamma", gamma); + material.setFloat("Strength", strength); + } + + @Override + protected Material getMaterial() { + return material; + } + + /** + * Sets number of color levels used to draw the screen + */ + public void setNumColors(int numColors) { + this.numColors = numColors; + if (material != null) { + material.setInt("NumColors", numColors); + } + } + + /** + * Sets gamma level used to enhange visual quality + */ + public void setGamma(float gamma) { + this.gamma = gamma; + if (material != null) { + material.setFloat("Gamma", gamma); + } + } + + /** + * Sets urrent strength value, i.e. influence on final image + */ + public void setStrength(float strength) { + this.strength = strength; + if (material != null) { + material.setFloat("Strength", strength); + } + } + + /** + * Returns number of color levels used + */ + public int getNumColors() { + return numColors; + } + + /** + * Returns current gamma value + */ + public float getGamma() { + return gamma; + } + + /** + * Returns current strength value, i.e. influence on final image + */ + public float getStrength() { + return strength; + } +}
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