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diff --git a/engine/src/terrain/com/jme3/terrain/noise/Basis.java b/engine/src/terrain/com/jme3/terrain/noise/Basis.java
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+/**
+ * Copyright (c) 2011, Novyon Events
+ * 
+ * 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.
+ * 
+ * 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 HOLDER 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.
+ * 
+ * @author Anthyon
+ */
+package com.jme3.terrain.noise;
+
+import java.nio.FloatBuffer;
+
+import com.jme3.terrain.noise.basis.ImprovedNoise;
+import com.jme3.terrain.noise.modulator.Modulator;
+
+/**
+ * Interface for - basically 3D - noise generation algorithms, based on the
+ * book: Texturing & Modeling - A Procedural Approach
+ * 
+ * The main concept is to look at noise as a basis for generating fractals.
+ * Basis can be anything, like a simple:
+ * 
+ * <code>
+ * float value(float x, float y, float z) {
+ * 		return 0; // a flat noise with 0 value everywhere
+ * }
+ * </code>
+ * 
+ * or a more complex perlin noise ({@link ImprovedNoise}
+ * 
+ * Fractals use these functions to generate a more complex result based on some
+ * frequency, roughness, etc values.
+ * 
+ * Fractals themselves are implementing the Basis interface as well, opening
+ * an infinite range of results.
+ * 
+ * @author Anthyon
+ * 
+ * @since 2011
+ * 
+ */
+public interface Basis {
+
+	public void init();
+
+	public Basis setScale(float scale);
+
+	public float getScale();
+
+	public Basis addModulator(Modulator modulator);
+
+	public float value(float x, float y, float z);
+
+	public FloatBuffer getBuffer(float sx, float sy, float base, int size);
+
+}