1 files changed, 172 insertions, 0 deletions
diff --git a/engine/src/core-effects/com/jme3/post/filters/FogFilter.java b/engine/src/core-effects/com/jme3/post/filters/FogFilter.java
new file mode 100644
index 0000000..c1df3b7
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+++ b/engine/src/core-effects/com/jme3/post/filters/FogFilter.java
@@ -0,0 +1,172 @@
+/*
+ * 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);
+    }
+
+
+}