diff options
Diffstat (limited to 'engine/src/blender/com/jme3/scene/plugins/blender/textures/TextureGeneratorDistnoise.java')
| -rw-r--r-- | engine/src/blender/com/jme3/scene/plugins/blender/textures/TextureGeneratorDistnoise.java | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/textures/TextureGeneratorDistnoise.java b/engine/src/blender/com/jme3/scene/plugins/blender/textures/TextureGeneratorDistnoise.java new file mode 100644 index 0000000..f66beb6 --- /dev/null +++ b/engine/src/blender/com/jme3/scene/plugins/blender/textures/TextureGeneratorDistnoise.java @@ -0,0 +1,135 @@ +/* + * 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.scene.plugins.blender.textures; + +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.NoiseGenerator.NoiseFunction; +import com.jme3.texture.Image; +import com.jme3.texture.Image.Format; +import com.jme3.texture.Texture; +import com.jme3.texture.Texture3D; +import com.jme3.util.BufferUtils; +import java.nio.ByteBuffer; +import java.util.ArrayList; + +/** + * This class generates the 'distorted noise' texture. + * @author Marcin Roguski (Kaelthas) + */ +public class TextureGeneratorDistnoise extends TextureGenerator { + + /** + * Constructor stores the given noise generator. + * @param noiseGenerator + * the noise generator + */ + public TextureGeneratorDistnoise(NoiseGenerator noiseGenerator) { + super(noiseGenerator); + } + + @Override + protected Texture generate(Structure tex, int width, int height, int depth, BlenderContext blenderContext) { + float noisesize = ((Number) tex.getFieldValue("noisesize")).floatValue(); + float distAmount = ((Number) tex.getFieldValue("dist_amount")).floatValue(); + int noisebasis = ((Number) tex.getFieldValue("noisebasis")).intValue(); + int noisebasis2 = ((Number) tex.getFieldValue("noisebasis2")).intValue(); + + TexturePixel texres = new TexturePixel(); + float[] texvec = new float[] { 0, 0, 0 }; + int halfW = width >> 1, halfH = height >> 1, halfD = depth >> 1, index = 0; + float wDelta = 1.0f / halfW, hDelta = 1.0f / halfH, dDelta = 1.0f / halfD; + float[][] colorBand = this.computeColorband(tex, blenderContext); + Format format = colorBand != null ? Format.RGBA8 : Format.Luminance8; + int bytesPerPixel = colorBand != null ? 4 : 1; + BrightnessAndContrastData bacd = new BrightnessAndContrastData(tex); + + byte[] data = new byte[width * height * depth * bytesPerPixel]; + for (int i = -halfW; i < halfW; ++i) { + texvec[0] = wDelta * i / noisesize; + for (int j = -halfH; j < halfH; ++j) { + texvec[1] = hDelta * j / noisesize; + for (int k = -halfD; k < halfD; ++k) { + texvec[2] = dDelta * k; + texres.intensity = this.musgraveVariableLunacrityNoise(texvec[0], texvec[1], texvec[2], distAmount, noisebasis, noisebasis2); + texres.intensity = FastMath.clamp(texres.intensity, 0.0f, 1.0f); + if (colorBand != null) { + int colorbandIndex = (int) (texres.intensity * 1000.0f); + texres.red = colorBand[colorbandIndex][0]; + texres.green = colorBand[colorbandIndex][1]; + texres.blue = colorBand[colorbandIndex][2]; + + this.applyBrightnessAndContrast(bacd, texres); + data[index++] = (byte) (texres.red * 255.0f); + data[index++] = (byte) (texres.green * 255.0f); + data[index++] = (byte) (texres.blue * 255.0f); + data[index++] = (byte) (colorBand[colorbandIndex][3] * 255.0f); + } else { + this.applyBrightnessAndContrast(texres, bacd.contrast, bacd.brightness); + data[index++] = (byte) (texres.intensity * 255.0f); + } + } + } + } + ArrayList<ByteBuffer> dataArray = new ArrayList<ByteBuffer>(1); + dataArray.add(BufferUtils.createByteBuffer(data)); + return new Texture3D(new Image(format, width, height, depth, dataArray)); + } + + /** + * "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 + } +} |