/*
* 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
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package com.jme3.scene.plugins.blender.textures.generating;
import com.jme3.math.FastMath;
import com.jme3.scene.plugins.blender.BlenderContext;
import com.jme3.scene.plugins.blender.file.Structure;
import com.jme3.scene.plugins.blender.textures.TexturePixel;
import com.jme3.scene.plugins.blender.textures.generating.NoiseGenerator.NoiseFunction;
import com.jme3.texture.Image.Format;
/**
* This class generates the 'distorted noise' texture.
* @author Marcin Roguski (Kaelthas)
*/
public class TextureGeneratorDistnoise extends TextureGenerator {
protected float noisesize;
protected float distAmount;
protected int noisebasis;
protected int noisebasis2;
/**
* Constructor stores the given noise generator.
* @param noiseGenerator
* the noise generator
*/
public TextureGeneratorDistnoise(NoiseGenerator noiseGenerator) {
super(noiseGenerator, Format.Luminance8);
}
@Override
public void readData(Structure tex, BlenderContext blenderContext) {
super.readData(tex, blenderContext);
noisesize = ((Number) tex.getFieldValue("noisesize")).floatValue();
distAmount = ((Number) tex.getFieldValue("dist_amount")).floatValue();
noisebasis = ((Number) tex.getFieldValue("noisebasis")).intValue();
noisebasis2 = ((Number) tex.getFieldValue("noisebasis2")).intValue();
}
@Override
public void getPixel(TexturePixel pixel, float x, float y, float z) {
pixel.intensity = this.musgraveVariableLunacrityNoise(x * 4, y * 4, z * 4, distAmount, noisebasis, noisebasis2);
pixel.intensity = FastMath.clamp(pixel.intensity, 0.0f, 1.0f);
if (colorBand != null) {
int colorbandIndex = (int) (pixel.intensity * 1000.0f);
pixel.red = colorBand[colorbandIndex][0];
pixel.green = colorBand[colorbandIndex][1];
pixel.blue = colorBand[colorbandIndex][2];
this.applyBrightnessAndContrast(bacd, pixel);
} else {
this.applyBrightnessAndContrast(pixel, bacd.contrast, bacd.brightness);
}
}
/**
* "Variable Lacunarity Noise" A distorted variety of Perlin noise. This method is used to calculate distorted noise
* texture.
* @param x
* @param y
* @param z
* @param distortion
* @param nbas1
* @param nbas2
* @return
*/
private float musgraveVariableLunacrityNoise(float x, float y, float z, float distortion, int nbas1, int nbas2) {
NoiseFunction abstractNoiseFunc1 = NoiseGenerator.noiseFunctions.get(Integer.valueOf(nbas1));
if (abstractNoiseFunc1 == null) {
abstractNoiseFunc1 = NoiseGenerator.noiseFunctions.get(Integer.valueOf(0));
}
NoiseFunction abstractNoiseFunc2 = NoiseGenerator.noiseFunctions.get(Integer.valueOf(nbas2));
if (abstractNoiseFunc2 == null) {
abstractNoiseFunc2 = NoiseGenerator.noiseFunctions.get(Integer.valueOf(0));
}
// get a random vector and scale the randomization
float rx = abstractNoiseFunc1.execute(x + 13.5f, y + 13.5f, z + 13.5f) * distortion;
float ry = abstractNoiseFunc1.execute(x, y, z) * distortion;
float rz = abstractNoiseFunc1.execute(x - 13.5f, y - 13.5f, z - 13.5f) * distortion;
return abstractNoiseFunc2.executeSigned(x + rx, y + ry, z + rz); // distorted-domain noise
}
}