simgear/scene/util/StateAttributeFactory.cxx

   1 /* -*-c++-*-
   2  *
   3  * Copyright (C) 2007 Tim Moore
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  18  * MA 02110-1301, USA.
  19  *
  20  */
  21 #include "StateAttributeFactory.hxx"
  22
  23 #include <osg/AlphaFunc>
  24 #include <osg/Array>
  25 #include <osg/BlendFunc>
  26 #include <osg/CullFace>
  27 #include <osg/Depth>
  28 #include <osg/ShadeModel>
  29 #include <osg/Texture2D>
  30 #include <osg/Texture3D>
  31 #include <osg/TexEnv>
  32
  33 #include <osg/Image>
  34
  35 #include <simgear/scene/material/Noise.hxx>
  36
  37 using namespace osg;
  38
  39 namespace simgear
  40 {
  41 StateAttributeFactory::StateAttributeFactory()
  42 {
  43     _standardAlphaFunc = new AlphaFunc;
  44     _standardAlphaFunc->setFunction(osg::AlphaFunc::GREATER);
  45     _standardAlphaFunc->setReferenceValue(0.01f);
  46     _standardAlphaFunc->setDataVariance(Object::STATIC);
  47     _smooth = new ShadeModel;
  48     _smooth->setMode(ShadeModel::SMOOTH);
  49     _smooth->setDataVariance(Object::STATIC);
  50     _flat = new ShadeModel(ShadeModel::FLAT);
  51     _flat->setDataVariance(Object::STATIC);
  52     _standardBlendFunc = new BlendFunc;
  53     _standardBlendFunc->setSource(BlendFunc::SRC_ALPHA);
  54     _standardBlendFunc->setDestination(BlendFunc::ONE_MINUS_SRC_ALPHA);
  55     _standardBlendFunc->setDataVariance(Object::STATIC);
  56     _standardTexEnv = new TexEnv;
  57     _standardTexEnv->setMode(TexEnv::MODULATE);
  58     _standardTexEnv->setDataVariance(Object::STATIC);
  59     osg::Image *dummyImage = new osg::Image;
  60     dummyImage->allocateImage(1, 1, 1, GL_LUMINANCE_ALPHA,
  61                               GL_UNSIGNED_BYTE);
  62     unsigned char* imageBytes = dummyImage->data(0, 0);
  63     imageBytes[0] = 255;
  64     imageBytes[1] = 255;
  65     _whiteTexture = new osg::Texture2D;
  66     _whiteTexture->setImage(dummyImage);
  67     _whiteTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
  68     _whiteTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
  69     _whiteTexture->setDataVariance(osg::Object::STATIC);
  70     // And now the transparent texture
  71     dummyImage = new osg::Image;
  72     dummyImage->allocateImage(1, 1, 1, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE);
  73     imageBytes = dummyImage->data(0, 0);
  74     imageBytes[0] = 255;
  75     imageBytes[1] = 0;
  76     _transparentTexture = new osg::Texture2D;
  77     _transparentTexture->setImage(dummyImage);
  78     _transparentTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
  79     _transparentTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
  80     _transparentTexture->setDataVariance(osg::Object::STATIC);
  81     _white = new Vec4Array(1);
  82     (*_white)[0].set(1.0f, 1.0f, 1.0f, 1.0f);
  83     _white->setDataVariance(Object::STATIC);
  84     _cullFaceFront = new CullFace(CullFace::FRONT);
  85     _cullFaceFront->setDataVariance(Object::STATIC);
  86     _cullFaceBack = new CullFace(CullFace::BACK);
  87     _cullFaceBack->setDataVariance(Object::STATIC);
  88     _depthWritesDisabled = new Depth(Depth::LESS, 0.0, 1.0, false);
  89     _depthWritesDisabled->setDataVariance(Object::STATIC);
  90 }
  91
  92 osg::Image* make3DNoiseImage(int texSize)
  93 {
  94     osg::Image* image = new osg::Image;
  95     image->setImage(texSize, texSize, texSize,
  96                     4, GL_RGBA, GL_UNSIGNED_BYTE,
  97                     new unsigned char[4 * texSize * texSize * texSize],
  98                     osg::Image::USE_NEW_DELETE);
  99
 100     const int startFrequency = 4;
 101     const int numOctaves = 4;
 102
 103     int f, i, j, k, inc;
 104     double ni[3];
 105     double inci, incj, inck;
 106     int frequency = startFrequency;
 107     GLubyte *ptr;
 108     double amp = 0.5;
 109
 110     osg::notify(osg::WARN) << "creating 3D noise texture... ";
 111
 112     for (f = 0, inc = 0; f < numOctaves; ++f, frequency *= 2, ++inc, amp *= 0.5)
 113     {
 114         SetNoiseFrequency(frequency);
 115         ptr = image->data();
 116         ni[0] = ni[1] = ni[2] = 0;
 117
 118         inci = 1.0 / (texSize / frequency);
 119         for (i = 0; i < texSize; ++i, ni[0] += inci)
 120         {
 121             incj = 1.0 / (texSize / frequency);
 122             for (j = 0; j < texSize; ++j, ni[1] += incj)
 123             {
 124                 inck = 1.0 / (texSize / frequency);
 125                 for (k = 0; k < texSize; ++k, ni[2] += inck, ptr += 4)
 126                 {
 127                     *(ptr+inc) = (GLubyte) (((noise3(ni) + 1.0) * amp) * 128.0);
 128                 }
 129             }
 130         }
 131     }
 132
 133     osg::notify(osg::WARN) << "DONE" << std::endl;
 134     return image;
 135 }
 136
 137 osg::Texture3D* StateAttributeFactory::getNoiseTexture(int size)
 138 {
 139     NoiseMap::iterator itr = _noises.find(size);
 140     if (itr != _noises.end())
 141         return itr->second.get();
 142     Texture3D* noiseTexture = new osg::Texture3D;
 143     noiseTexture->setFilter(osg::Texture3D::MIN_FILTER, osg::Texture3D::LINEAR);
 144     noiseTexture->setFilter(osg::Texture3D::MAG_FILTER, osg::Texture3D::LINEAR);
 145     noiseTexture->setWrap(osg::Texture3D::WRAP_S, osg::Texture3D::REPEAT);
 146     noiseTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture3D::REPEAT);
 147     noiseTexture->setWrap(osg::Texture3D::WRAP_R, osg::Texture3D::REPEAT);
 148     noiseTexture->setImage( make3DNoiseImage(size) );
 149     _noises.insert(std::make_pair(size, noiseTexture));
 150     return noiseTexture;
 151 }
 152
 153 static osg::Image* make2DNoiseNormal();
 154 osg::Texture2D* StateAttributeFactory::getNoiseNormalMap()
 155 {
 156     if (_noiseNormalTexture.valid())
 157         return _noiseNormalTexture.get();
 158
 159     _noiseNormalTexture = new osg::Texture2D;
 160     _noiseNormalTexture->setFilter(osg::Texture3D::MIN_FILTER, osg::Texture3D::LINEAR);
 161     _noiseNormalTexture->setFilter(osg::Texture3D::MAG_FILTER, osg::Texture3D::LINEAR);
 162     _noiseNormalTexture->setWrap(osg::Texture3D::WRAP_S, osg::Texture3D::REPEAT);
 163     _noiseNormalTexture->setWrap(osg::Texture3D::WRAP_T, osg::Texture3D::REPEAT);
 164     _noiseNormalTexture->setImage( make2DNoiseNormal() );
 165     return _noiseNormalTexture;
 166 }
 167
 168 // anchor the destructor into this file, to avoid ref_ptr warnings
 169 StateAttributeFactory::~StateAttributeFactory()
 170 {
 171
 172 }
 173
 174 /*  GIMP header image file format (RGB):  */
 175
 176 static unsigned int noiseNormalWidth = 64;
 177 static unsigned int noiseNormalHeight = 64;
 178
 179 /*  Call this macro repeatedly.  After each use, the pixel data can be extracted  */
 180
 181 #define NOISE_NORMAL_PIXEL(data,pixel) {\
 182 pixel[0] = (((data[0] - 33) << 2) | ((data[1] - 33) >> 4)); \
 183 pixel[1] = ((((data[1] - 33) & 0xF) << 4) | ((data[2] - 33) >> 2)); \
 184 pixel[2] = ((((data[2] - 33) & 0x3) << 6) | ((data[3] - 33))); \
 185 data += 4; \
 186 }
 187 static char *noiseNormalData =
 188         "@Y4`CI$`BXX`>XP`>HH_AH<`B8H`?X\\`AHT`B8\\`B8\\`@H`^>I$\\>Y(^@(T_AHD`"
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 190         "DXD`@8L`=HX\\?9(_CI(`D8X`AY,`?9H`?9,\\@9(_A(X_A(H^@H@\\@8L\\?X`]?)$]"
 191         "@I<`AY,`@I,`>9<]?Y8_CY$`D(T`@HX^@HH[B(``BY,`A90]@9<^A9P`AYT`AI<`"
 192         ">XPZAHD^A8H`?(P_?(X`AXT`B(X`@)(`A9$`B),`BY,`AY4`@)<`@9@`A)4`AY$`"
 193         ">H\\\\A(X_B8P_@HP]>8`\\>I(^A(``D(T`@(T`@(H]A8L]AXT_@XT^@H`_AY,`B9,`"
 194         "BXH`@(H]>XT[@9(`BI(`BX\\`@X\\^?I,`@9(_A)(`A8\\`A(L_@XH^@XT^@Y$`@9(_"
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 196         ">XDX@H@Z@XL\\?X`^@9,`B),`AY(_?Y4^AI@^B98`B90`A9$`@)(`?Y0`@90`@9(]"
 197         "?9(_A(X_AXH]@(H[>8`\\?)0`AY,`D(``?Y0`@9(_AY,`B)<`@I,`@),_A)4`AI0`"
 198         "@(P^?XL]@(P\\AI$`B),`A(``@HX^@X\\`AY$`AY,`AI(`A(``@HX`@X\\`A(``A8\\`"
 199         "CY(`@X\\_?XT[AX\\_C)(`AI0`?I,`?9(`@Y0`AI0`B)0`AY,`@Y$_?XT\\?H@[?X0["
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 201         "@)(`AI(`B9$`A(``?I,`?I4`A)(`BXX`@IH`A9@`C)L`BYT`A)<`?Y(\\@)$^@HX]"
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 206         ">9@`@Y0`CH``C9$`A)(`?H`^@8T_AXH_@(4\\?8<Z?8H\\?8X\\?X`^@H`_A8\\`B8\\`"
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 210         "=),_?H``AXT_BHX_A8`_@9(`A)(`B(\\`A(X`@HX`@8\\^@9(_@I,`@Y$_A(`_A8`_"
 211         "@Y0`@)<`@YH`BY@`BY(`@HT\\@(P[A8\\`BI(`AXT^AXH]@XH^?HL]>(T\\>X`_@9,`"
 212         "B9$`?9(^?9(^BY,`BI(`?)$^>X`_B(\\`B(X`@HX`?)$^?Y0`AI0`AI$`A(\\^@8\\]"
 213         "@Y$_A9,`AI,_A),^@Y4]AI@`B)H`B9L`B94`A8`_AHX_@HX`?(T[?H\\]AI(`BI(`"
 214         "=8\\_>H\\^@8T]AXT_B(X_AY(`A9,`@Y0`B)4`AI,`A9,`AY8`AY8`A90_A),^A),^"
 215         "AY4`B98`A98`?Y<]?Y(ZA(\\\\AY0`A9H`@90`@Y$_A(X_@XT`@(T_?X\\`@)$_A)(`"
 216         "B(X`>X`\\?I,_C)(`BH``>8X]>8H_AXD`B(X`?X`^>)0[>YD]@YD^B)<^B98^AI@`"
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 218         "?9,`?Y,`@X``AX\\`BX\\`B(X_@8\\]>H\\[?H``?8\\]@8\\]A90]AY8_AY8_@Y8^A)<`"
 219         "B(`^CH``B)4_?)H^>YD]AI4^AY8`?9L`=Y0]?),_@9(`A(``A(``A9$`AY(`BI$_"
 220         "A(L_B8P`BHL`B(L`@XT`@9$`@)$`?X\\`AXP`A(H^AHP^A(`_@),[@9D]AIT`B)L]"
 221         "@)P`?YH`?Y8`A(``C8T`DHT`BHT`?XH_?XDZ@(X]@H`_@HX^AHX_B(X`AHX_@(P\\"
 222         "@(TYAI<`AYP`@Y@`@Y$`A(``@X\\_?XL[@9(_@Y$_A9$`AI(`AY,`A9,`@90`?Y(^"
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 227         "@8\\^@8T]@(H[@XL\\A8T^@XT^@8T]?HP[>(T\\@8X`C8X`A8\\`>(`\\@XT^C(P`>X`\\"
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 229         "@(@X@HX]A)(`AH``B8\\`B(X`@9$`>I4`BI8`AY4`@9(`?X`^@X\\_A8\\`A(``@(X]"
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 231         "?H`^?X`^@HX^A8\\`AY$`AH``A(``@H`_?),\\@)4`C)(`AX\\`>(T\\@HD]CHD`@HT`"
 232         "@ID`@9@`@)8_@I,^A)(`A9,`@90`?I,_A90_A(\\^AHX^A8T^?XD^?X@`AH@`AX4`"
 233         "@H@Y@(P[@)$_A(``B8\\`BH``AI,`@9<`BI0`A9,`?H`^?H\\]@H`_A(``A(``?X`^"
 234         "C9,`A8\\`@8X`@X``AY$`A8\\`@8T_?HX_@8DZ@XL\\AHX_AX\\`AHX_AHX_AX\\`AY$`"
 235         ">X`]?H`^@9(`AI0`AY,`AI(`A9$`A)(`@),_?I4`BI(`BXX`?8\\]A(X_D(\\`B)(`"
 236         "AY,`@9(_?I$]@9(_B)4`B)<`?Y8_=I8\\AHT`A(D`A(H^@8@\\?(@Z?HL]A8\\`B8\\`"
 237         "B94`@Y0`?I,`@)$_AX\\`BHT`AXX`@X``B(``@8\\^?(X\\?H`^A)(`AI(`A(``@H`_"
 238         "B(X`@8L^?XP^A(``AY$`A8\\`@X\\`@9$`A8T^AX\\`B(``AX\\`A8T^A(P]A(P]A8T^"
 239         ">X`]>X`]?Y$_@Y0`A)(`@(X]?XT\\@(X]@8L`>8T_A8P`BXL_?X`]@Y0_C)0`AI4^"
 240         "BXX`@HP]?8X\\@Y$`C)0`BI4`@)4`=I8^@XP`@XH`AXP`A8\\`@(X]@9(_AY8`B90_"
 241         "C9L`@I<`?),_?Y$_B(``C(X`B8P_@XT^AHP^@8T]?H\\]@)(`AI0`AY,`A9$`@Y$`"
 242         "@XT`@(P^?HL]@8T_@HP]@HP]@H`_@I0`B9,`B)(`AI(`A9$`@X\\_A(X_B(``BI(`"
 243         "@Y8`@I4`@I4`A98`@Y0`@8\\]@(X\\@8\\]@XH`=XT^@(P^BXL_@)$^?Y<]AY0^@Y(Y"
 244         "B(L`@8L`?(P]A(X`C(T`C(X`@X\\_?),_?Y$_@)$_AY4`B)8`@Y0_@Y0_B)4`BI$_"
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 246         "A)$`@)$_?H\\]?XT\\@HP]@XX]@Y$_@90`B)0`AI0`A9,`@I,`A)(`AY,`B90`BY8`"
 247         "AY@`@Y0`@Y0`AI<`A98`@I,`A)(`AI0`A9,`=I<`@I4`CX\\`A)(`?I4`AI(`AX\\_"
 248         "@H<`?(D_>XL^@(H_B84_BX,\\A88\\@(T_>YD[?I@[A)H`AID`@90^@Y$_B(``BHP^"
 249         "BHP_@HP]?8\\]@9,`B)0`B9$`@X\\_?X`^BXT`AHX_@Y$`@Y0`A)(`@XT^@8L\\@8T]"
 250         "@Y0`@9,`@)(`@Y$`AY(`BI4`AY4`@I4_AY4`A)4`@Y0`@I4`@Y0`A9,`A9$`A8`_"
 251         "@H`^?XT[?HPZ@)$^@I,`@9(_@9(_A)4`@YL_=)\\_@IL`D9,`A9$`?I,`B8``C8P`"
 252         ">Y$`@8X`AHX_BHX_B(X_@X\\^@8\\^?XT\\=X\\]@(P^BHD`B8H`@8T]?8\\]@8\\^AHP]"
 253         "@)(`@HP]@HP]@9,`B)8`C)(`A9$`=Y4[AY(_B9$_AY(_A90_@)<`?)@_?98^?90]"
 254         "@HX`@(X]?X`]A90_C)D`C9@`AY8`?Y(^BXT_B8\\`AI$`@H`^@)$^@9(_@Y$_@H`_"
 255         "A(\\`@HT`@8X`@H\\`@8T_?XDZA8L]BH``>Y$`?)$`@)$^A9(^B),^AY0^A),\\@)$\\"
 256         "@I<`@I0`@Y$_AI$^BY,`BI4`A98`@)4`=X\\]@(P^B(D_AXH_@8T]?Y$_A9$`C)(`"
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 383         "?X@`>XT_?Y$`AY$`A9(`?)0`?I,_BH``@I4_A),^AY0^C)4`BY,`A(`_?8X\\>XT]"
 384         "@)8`@Y@`AY@`B)8`AI$^A8T]A(P\\A8T^B)(`A)(`@H`_AHX_C(D^BHH^@H`_>I4`"
 385         "A)<`@90`@)(`@X``AH``B(``A9$`A)4`?X`[@Y(]A(\\^A(P\\A8T]AH``@Y$`?H\\]"
 386         "?X`^@X\\_B(``B8\\`B(X_A(X_@8\\^?H``@)$^@Y$`A8\\`AHT`AXT`B8\\`B9$`B(``"
 387         "A(L`>XT]>XT]@HP_@HX^?)$^?Y(^BX\\`@9(_@Y$_A9$`AY(`B(``AHX_AHT`AH``"
 388         "?Y$`@I(`AI0`AI(`AI$^A8`]A8`_AI(`AHX^A)(`@Y0`A9$`BXP`C8H`B8P`@HT`"
 389         "@H\\`?8T`>XL`?XH`A(L`AHP`B(``B)(`@I,`A)(`A(`_A8`_AI$`AI(`A9,`@I,`"
 390         "?X`]@Y(]AI$^BI$_B8`^AX\\_@X\\_@8X`@H`_A(``A8\\`A8T^A8T^AX\\_B(`^AY(]"
 391         "AH``>X`]>8X[@HP]A(X_@)(`@)$_B8P_AI(`AI(`AY,`AI(`A(X_@XH^A(D`B8L`"
 392         "A88^A(4[A(<ZA8T]AY8`A9L`@9H`?9@`A9(^A98`@9<`@),_A(X_C(X`BXP`B(D_"
 393         "?(P`>HL`>8H_?8H^@XH^AHP`AX\\`AI$`@)$^@8\\]@X\\_A9$`A9$`@HX^?XT\\?(T["
 394         "@Y0`A9,`AY(`B(``B(X_AHX_@XT`@8P`A(``@X\\`@XT^A(\\^A8`]AY(]AY,[AY,["
 395         "AY,`?98`>I4_AI0`B90`@Y4`@)(`A(X_BH``BI(`B)0`A98`@)(`?8X\\?XL]@8L^"
 396         "C(L`BHL`B8P_B9$`B98`AID`?I<`>90^C)L`A9L`?98\\=X`V?(\\YA8`_BX\\`B(H]"
 397         "?8T`>X`_?)(`@9,`A9,`B),`AY(_A9(^@H`_@H`_A(``AY,`AI(`@X\\_@8\\^@H`_"
 398         "A94`A9(`A(``@XT^A(L_@8L`@(L`@(L`@X\\`@HX^@HX]A9$`BI<`C9@`C)<`BI4`"
 399         "AY4`?)D`>IH`A)<`B)0`@)4`?)0`@)(`C8`]B8`\\A9(^@Y8`@)<`?98`?90_?Y0`"
 400         "@Y0`AI<`C)@`BY8`AI$`A(P\\@HP]@XT^AY8]@Y<\\?Y4\\?I8\\@9@`AY@`AY(_AHP]"
 401         "@8\\^@)(`?Y8`@I@`AI<`B98`AY0`@Y(]A9$`AI(`AI(`AI(`AY,`B)0`BI8`BY<`"
 402         "?HX`?HX`?XP^@(P\\@HX^@X\\`@X``A)$`AI(`@X\\^@H`^A90_BI<`BI<`B),`B(``"
 403         "AY$`>I4`=I8_?Y$_A(X_?Y$_?)0`?Y8`D)4_BI$]A8`]@9(_?Y0`?Y8`?Y@`@)D`"
 404         "?I,_@Y8`B9@`B),`A8T]@XD[A8L_B(X`@HT\\@HT\\@X\\^AI<`AIL`AI@`A)(`@HP]"
 405         "A8T^@Y$`@90`@9(]A),^AY(`A9$`@8\\^@8L^A(X`A(X`@8L^@8L\\A(X_AH``A8\\`"
 406         ">XL\\?(P]@(X]@Y$_AY8`AI<`A9@`A)<`AY8`A90_A90_A90_A),^@XT^@XH^A(D`"
 407         "BHL`>H\\^=(\\\\@(P^B8P_A(``?Y0`?Y8`BY@`B90`AH``A(X`@HP`@(L`?HX_@9$`"
 408         "AX\\]AX\\]AX\\]AX\\]A(\\^A(``A)$`A)0`BH\\`B(L`@X@_@HP`?HX_>HP\\>XL\\@(P^"
 409         "B(L`AX\\`@X\\_@(X\\@XX]AX\\`A8\\`@HT`@XH^B(\\`B8``@XT`@8L\\A8T^A(P]@(@X"
 410         "@)$_@I,`A98`B)H`BIP`AYL_@9@[?9,XAY8_A9<_A9<_A)4`@Y$_@8L^A(D`B8L`"
 411         "CH8`?(D]=HH\\A8L_D8X`C9,`A)4`@I4`?Y0`@I(`A8\\`B(H`AH8`@H(^@H0^@X@`"
 412         "BY@`BY(^CH``B9,`?Y8`?I8`A)(`B(H]@HD`>XP`@(L`C8@`C8@`?HX`?)(`AI(`"
 413         "A),^?8`Z>X`\\@9(`B9$`B9$`B)<`AIT`AYH`A)H`@9<^@9(]AI,_B94`A98`?I4`"
 414         "BI$]BY,`B90`A(``@(P^?8D[?XL]@8T_@I$\\A)8^A)<_?Y@^>I@\\?I<_A9,`B8\\`"
 415         "@(X\\?9(^?98^?Y@`A9@`B)0`A8T^@(<[C(T`B8P_A8L]@XX]A9$`A)4`@Y8^@)8]"
 416         "A)<_A)$]B(X_@X\\_>X`]?)$^A8\\`BHH^@XH`?(P_?HL]B(<^AX@^?8T^?9(_B)(`"
 417         "BID`AYH`@ID`@)4`A(`_AI$^A),^?Y4\\@YH`@9H`?Y8_@),]AI,_BI4`BI8`A)4`"
 418         "@)8_@Y8`A)<`@I,`@HX`A(L_B(L^BXT`BH``C)(`BY,`A9,`@)4`@)<`@I0`A(``"
 419         "B9,`AY4`@Y8`@90`@Y0`A9,`@X``?8T^?8T^?8X\\?8\\]?I,`@9@`@IL`@)P`?YL`"
 420         "?Y<]@)$\\A(`_@H`_>8X[?(X\\@XT^B8D]AXT_@H`_@)$_AX\\`A(\\^?Y(^@I,`BY,`"
 421         "AY0^AYH`@YH`?I4^@)$\\A9(^AI$\\@X`Z?90_?)4_>I,]?)$]A)$]AY(_AI$^@H\\["
 422         "@90`@90`@9,`@9$`@H\\`@X\\_AHX_B(X_B(<`BH8`BH<^AXH]A(``@)4`?Y0`?9(`"
 423         "BY$`B)(`AY,`AI(`AY$`AY,`@)(`>9$`A(X_@HP]@(H[@(H[@8T]@X\\_A9$`A9$`"
 424         "@Y0_A)(`B)0`AY4`?I,`?)$^@H`_A(P]AHX\\A9(^A98`AI<`A98`A)4`A90_B9$_"
 425         "@8P[@8\\]?Y$_?)$^?X`^AH``BX\\`BHP^@(X]?H`^?9(_@90`A9,`AI,_@8`[?(TX"
 426         "B8L]AXH]@XT^@H\\`?I,`?I4`?I<`?I<_@X@_AH<]B88]B(@\\A8T^@9(`?I,`?)(`"
 427         "@8L`@8T_@8L^@XL\\A8L]AHT`@9$`>Y$`B9$`B(``AHX_A8L]AXH_B8H`B(D_B(D_"
 428         "B9$`B(``BY,`B)4`@9,`?9,`?Y0`?I,`A(\\\\AY(_AY8`@YD`@9<`A90_AI$^AI$^"
 429         "A(L`@(H_?HD^@(T_@H\\`A(L`AH<_BH4_C(T`B(\\`A9,`A98`AI<`A98`@I4`?I,_"
 430         "BHP^AHP^@XT^@(``@)4`@9@`@)D`?IH`@98`AY,`CI(`CH``B(`^@H`^?Y(^?I,`"
 431         "?8T`?(P]>X@Z?84V@80WA8@]A(X`@H\\`?90`?Y0`@I<`AI@`AY<`AY0`A9$`@XT`"
 432         "C(``AXT_AX\\`@X\\`?HX_?Y$`@)<`?I<`A90_BY,`B90`?Y0`?I,_AX\\_BH``AI(`"
 433         "A(T`@HD`@HD_A(X`A(\\`@8L`A8<`BH8`DHH`BHL`@XT^@H`_@Y$`@Y$`@I,`@Y4`"
 434         "A9@`A)<`@9,`@)(`@(``@8\\^@XT^A(P\\?Y@`@Y8`B90`C),`AI$^@(X\\?H\\]?X`^"
 435         "?H``@)(`@9,`A(``AXT_B8P_AHP^@8L^?X`^?X`^@8\\^@HX^@HX^@XT^A8T^AHX_"
 436         "B9$`@XT^@8T_@8T_@(P^@X\\`A9,`@90`@Y8`C)(`BY$`?Y$_?H\\]B8P_BXX`@I(`"
 437         ">X\\`@8X`AXX`AH``@Y$`?X\\`@X\\`B8X`CXH`B(H]@8L\\?XT\\@8T_@XH^@XH^A8P`"
 438         "@YH`@9@`?Y0`?H`^?XP^@(H]@XD[AHD\\?Y(^@HX]AHX^B(``A8\\`?XP^?8H^?HL`"
 439         "@HP_A9(`AI@`B)D`BI8`B90`A8`_@(P\\AXT`A8L]@XD[@8<Y@X<XA8DZB(P[BHX]"
 440         "AY4`@9(`@9$`@X``A8P`B(X`B(``@XX]>Y(^B8\\`BHT`@(X]?HL]B(<^B(D_?(X`"
 441         "=I$\\@Y8`C)<`AI,_?I$[?),^?Y0`A9,`CX\\`B(``A)(`A9(`AH``AXH_AX8_BH8`"
 442         "A(\\ZA(\\\\@HX]@(X]?X\\`@9$`AI,`B)4`BI(`B8\\`BHT`BH``AI$`?X\\`>XH`>X<`"
 443         "BXH`AX\\`@9(`?I$]?I$[@9(]@Y0`@Y0`?HX_@9(`A98`B)D`B9H`B)D`AID`A9@`"
 444         "";
 445
 446 static osg::Image* make2DNoiseNormal() {
 447     osg::Image* image = new osg::Image;
 448     image->setImage(noiseNormalWidth, noiseNormalHeight, 1,
 449                     GL_RGB8, GL_RGB, GL_UNSIGNED_BYTE,
 450                     new unsigned char[3 * noiseNormalWidth * noiseNormalHeight],
 451                     osg::Image::USE_NEW_DELETE);
 452
 453     char* data = noiseNormalData;
 454     for (unsigned int i=0; i<noiseNormalHeight; ++i) {
 455         for (unsigned int j=0; j<noiseNormalWidth; ++j) {
 456             GLubyte *ptr = image->data(i,j);
 457             NOISE_NORMAL_PIXEL(data,ptr);
 458         }
 459     }
 460
 461     return image;
 462 }
 463 }