1 files changed, 158 insertions, 0 deletions
diff --git a/engine/src/core-effects/com/jme3/post/filters/DepthOfFieldFilter.java b/engine/src/core-effects/com/jme3/post/filters/DepthOfFieldFilter.java
new file mode 100644
index 0000000..55591c9
--- /dev/null
+++ b/engine/src/core-effects/com/jme3/post/filters/DepthOfFieldFilter.java
@@ -0,0 +1,158 @@
+/*
+ * 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 that performs a depth range
+ *  blur using a scaled convolution filter.
+ *
+ *  @version   $Revision: 779 $
+ *  @author    Paul Speed
+ */
+public class DepthOfFieldFilter extends Filter {
+
+    private float focusDistance = 50f;
+    private float focusRange = 10f;
+    private float blurScale = 1f;
+    // These values are set internally based on the
+    // viewport size.
+    private float xScale;
+    private float yScale;
+
+    /**
+     * Creates a DepthOfField filter
+     */
+    public DepthOfFieldFilter() {
+        super("Depth Of Field");
+    }
+
+    @Override
+    protected boolean isRequiresDepthTexture() {
+        return true;
+    }
+
+    @Override
+    protected Material getMaterial() {
+
+        return material;
+    }
+
+    @Override
+    protected void initFilter(AssetManager assets, RenderManager renderManager,
+            ViewPort vp, int w, int h) {
+        material = new Material(assets, "Common/MatDefs/Post/DepthOfField.j3md");
+        material.setFloat("FocusDistance", focusDistance);
+        material.setFloat("FocusRange", focusRange);
+
+
+        xScale = 1.0f / w;
+        yScale = 1.0f / h;
+
+        material.setFloat("XScale", blurScale * xScale);
+        material.setFloat("YScale", blurScale * yScale);
+    }
+
+    /**
+     *  Sets the distance at which objects are purely in focus.
+     */
+    public void setFocusDistance(float f) {
+
+        this.focusDistance = f;
+        if (material != null) {
+            material.setFloat("FocusDistance", focusDistance);
+        }
+
+    }
+
+    /**
+     * returns the focus distance
+     * @return 
+     */
+    public float getFocusDistance() {
+        return focusDistance;
+    }
+
+    /**
+     *  Sets the range to either side of focusDistance where the
+     *  objects go gradually out of focus.  Less than focusDistance - focusRange
+     *  and greater than focusDistance + focusRange, objects are maximally "blurred".
+     */
+    public void setFocusRange(float f) {
+        this.focusRange = f;
+        if (material != null) {
+            material.setFloat("FocusRange", focusRange);
+        }
+
+    }
+
+    /**
+     * returns the focus range
+     * @return 
+     */
+    public float getFocusRange() {
+        return focusRange;
+    }
+
+    /**
+     *  Sets the blur amount by scaling the convolution filter up or
+     *  down.  A value of 1 (the default) performs a sparse 5x5 evenly
+     *  distribubted convolution at pixel level accuracy.  Higher values skip
+     *  more pixels, and so on until you are no longer blurring the image
+     *  but simply hashing it.
+     *
+     *  The sparse convolution is as follows:
+     *%MINIFYHTMLc3d0cd9fab65de6875a381fd3f83e1b338%*
+     *  Where 'x' is the texel being modified.  Setting blur scale higher
+     *  than 1 spaces the samples out.
+     */
+    public void setBlurScale(float f) {
+        this.blurScale = f;
+        if (material != null) {
+            material.setFloat("XScale", blurScale * xScale);
+            material.setFloat("YScale", blurScale * yScale);
+        }
+    }
+
+    /**
+     * returns the blur scale
+     * @return 
+     */
+    public float getBlurScale() {
+        return blurScale;
+    }
+}