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<hr><h1>vegetable.cpp</h1><a href="vegetable_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="vegetable_8h.html">3d/vegetable.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="common_8h.html">nel/misc/common.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="vegetable__manager_8h.html">3d/vegetable_manager.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="fast__floor_8h.html">3d/fast_floor.h</a>"</font>
00032
00033
00034 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00035 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00036
00037
00038 <font class="keyword">namespace </font>NL3D
00039 {
00040
00041
00042 <font class="comment">// ***************************************************************************</font>
00043 <font class="comment">// Generate random value, but seed is spacial. Take a high frequency, so it gets more the aspect of random.</font>
00044 <font class="keyword">static</font> CNoiseValue <a class="code" href="namespaceNL3D.html#a472">RandomGenerator</a>(0,1, 7.68f);
00045
00046
00047 <font class="comment">// ***************************************************************************</font>
<a name="l00048"></a><a class="code" href="classNL3D_1_1CVegetable.html#a0">00048</a> CVegetable::CVegetable()
00049 {
00050 <font class="comment">// Ground style density.</font>
00051 <a class="code" href="classNL3D_1_1CVegetable.html#z878_1">setAngleGround</a>(0);
00052
00053 <font class="comment">// Density not maximised.</font>
00054 <a class="code" href="classNL3D_1_1CVegetable.html#m2">MaxDensity</a>= -1;
00055
00056 <font class="comment">// No scale.</font>
00057 <a class="code" href="classNL3D_1_1CVegetable.html#m3">Sxy</a>.Abs= <a class="code" href="classNL3D_1_1CVegetable.html#m4">Sz</a>.Abs= 1;
00058 <a class="code" href="classNL3D_1_1CVegetable.html#m3">Sxy</a>.Rand= <a class="code" href="classNL3D_1_1CVegetable.html#m4">Sz</a>.Rand= 0;
00059 <font class="comment">// No rotation.</font>
00060 <a class="code" href="classNL3D_1_1CVegetable.html#m5">Rx</a>.Abs= <a class="code" href="classNL3D_1_1CVegetable.html#m6">Ry</a>.Abs= <a class="code" href="classNL3D_1_1CVegetable.html#m7">Rz</a>.Abs= 0;
00061 <a class="code" href="classNL3D_1_1CVegetable.html#m5">Rx</a>.Rand= <a class="code" href="classNL3D_1_1CVegetable.html#m6">Ry</a>.Rand= <a class="code" href="classNL3D_1_1CVegetable.html#m7">Rz</a>.Rand= 0;
00062 <font class="comment">// No BendFactor.</font>
00063 <a class="code" href="classNL3D_1_1CVegetable.html#m8">BendFactor</a>.Abs= 1;
00064 <a class="code" href="classNL3D_1_1CVegetable.html#m8">BendFactor</a>.Rand= 0;
00065 <a class="code" href="classNL3D_1_1CVegetable.html#m10">BendFrequencyFactor</a>= 1;
00066
00067 <font class="comment">// Appear at 0.</font>
00068 <a class="code" href="classNL3D_1_1CVegetable.html#m12">DistType</a>= 0;
00069
00070 <a class="code" href="classNL3D_1_1CVegetable.html#o5">_Manager</a>= NULL;
00071 }
00072
00073
00074 <font class="comment">// ***************************************************************************</font>
<a name="l00075"></a><a class="code" href="classNL3D_1_1CVegetable.html#z878_1">00075</a> <font class="keywordtype">void</font> CVegetable::setAngleGround(<font class="keywordtype">float</font> cosAngleMin)
00076 {
00077 <a class="code" href="classNL3D_1_1CVegetable.html#o4">_AngleType</a>= <a class="code" href="classNL3D_1_1CVegetable.html#z878_0s4">AngleGround</a>;
00078
00079 <a class="code" href="classNL3D_1_1CVegetable.html#o0">_CosAngleMin</a>= cosAngleMin;
00080 <font class="comment">// We must be at densityFactor==1, when cosAngle==1, keeping the same formula.</font>
00081 <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a>= 1 + (1-cosAngleMin);
00082
00083 <font class="comment">// precalc</font>
00084 <a class="code" href="classNL3D_1_1CVegetable.html#o2">_CosAngleMiddle</a>= (<a class="code" href="classNL3D_1_1CVegetable.html#o0">_CosAngleMin</a> + <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a>)/2;
00085 <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>= <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a> - <a class="code" href="classNL3D_1_1CVegetable.html#o2">_CosAngleMiddle</a>;
00086 <font class="keywordflow">if</font>(_OOCosAngleDist)
00087 <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>= 1.0f / <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>;
00088 }
00089
00090 <font class="comment">// ***************************************************************************</font>
<a name="l00091"></a><a class="code" href="classNL3D_1_1CVegetable.html#z878_2">00091</a> <font class="keywordtype">void</font> CVegetable::setAngleCeiling(<font class="keywordtype">float</font> cosAngleMax)
00092 {
00093 <a class="code" href="classNL3D_1_1CVegetable.html#o4">_AngleType</a>= <a class="code" href="classNL3D_1_1CVegetable.html#z878_0s5">AngleCeiling</a>;
00094
00095 <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a>= cosAngleMax;
00096 <font class="comment">// We must be at densityFactor==1, when cosAngle==-1, keeping the same formula.</font>
00097 <a class="code" href="classNL3D_1_1CVegetable.html#o0">_CosAngleMin</a>= -1 - (cosAngleMax-(-1));
00098
00099 <font class="comment">// precalc</font>
00100 <a class="code" href="classNL3D_1_1CVegetable.html#o2">_CosAngleMiddle</a>= (<a class="code" href="classNL3D_1_1CVegetable.html#o0">_CosAngleMin</a> + <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a>)/2;
00101 <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>= <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a> - <a class="code" href="classNL3D_1_1CVegetable.html#o2">_CosAngleMiddle</a>;
00102 <font class="keywordflow">if</font>(_OOCosAngleDist)
00103 <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>= 1.0f / <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>;
00104 }
00105
00106 <font class="comment">// ***************************************************************************</font>
<a name="l00107"></a><a class="code" href="classNL3D_1_1CVegetable.html#z878_3">00107</a> <font class="keywordtype">void</font> CVegetable::setAngleWall(<font class="keywordtype">float</font> cosAngleMin, <font class="keywordtype">float</font> cosAngleMax)
00108 {
00109 <a class="code" href="classNL3D_1_1CVegetable.html#o4">_AngleType</a>= <a class="code" href="classNL3D_1_1CVegetable.html#z878_0s6">AngleWall</a>;
00110
00111 <a class="code" href="classNL3D_1_1CVegetable.html#o0">_CosAngleMin</a>= cosAngleMin;
00112 <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a>= cosAngleMax;
00113
00114 <font class="comment">// precalc</font>
00115 <a class="code" href="classNL3D_1_1CVegetable.html#o2">_CosAngleMiddle</a>= (<a class="code" href="classNL3D_1_1CVegetable.html#o0">_CosAngleMin</a> + <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a>)/2;
00116 <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>= <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a> - <a class="code" href="classNL3D_1_1CVegetable.html#o2">_CosAngleMiddle</a>;
00117 <font class="keywordflow">if</font>(_OOCosAngleDist)
00118 <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>= 1.0f / <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>;
00119 }
00120
00121
00122 <font class="comment">// ***************************************************************************</font>
<a name="l00123"></a><a class="code" href="classNL3D_1_1CVegetable.html#a1">00123</a> <font class="keywordtype">void</font> CVegetable::registerToManager(CVegetableManager *manager)
00124 {
00125 <a class="code" href="debug_8h.html#a6">nlassert</a>(manager);
00126 <a class="code" href="classNL3D_1_1CVegetable.html#o5">_Manager</a>= manager;
00127 <a class="code" href="classNL3D_1_1CVegetable.html#o6">_VegetableShape</a>= <a class="code" href="classNL3D_1_1CVegetable.html#o5">_Manager</a>->getVegetableShape(<a class="code" href="classNL3D_1_1CVegetable.html#m0">ShapeName</a>);
00128 }
00129
00130
00131 <font class="comment">// ***************************************************************************</font>
<a name="l00132"></a><a class="code" href="classNL3D_1_1CVegetable.html#c0">00132</a> <font class="keywordtype">void</font> CVegetable::generateGroupEx(<font class="keywordtype">float</font> nbInst, <font class="keyword">const</font> CVector &posInWorld, <font class="keyword">const</font> CVector &surfaceNormal, uint vegetSeed, std::vector<CVector2f> &instances)<font class="keyword"> const</font>
00133 <font class="keyword"></font>{
00134
00135 <font class="comment">// Density modulation.</font>
00136 <font class="comment">//===================</font>
00137
00138 <font class="comment">// compute cos of angle between surfaceNormal and K(0,0,1).</font>
00139 <font class="keywordtype">float</font> cosAngle= surfaceNormal.z;
00140 <font class="comment">// compute angleFactor density. Use a quadratic, because f'(_CosAngleMiddle)==0.</font>
00141 <font class="keywordtype">float</font> angleFact= 1 - <a class="code" href="namespaceNLMISC.html#a214">sqr</a>((cosAngle - <a class="code" href="classNL3D_1_1CVegetable.html#o2">_CosAngleMiddle</a>) * <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>);
00142 angleFact= max(0.f, angleFact);
00143 <font class="comment">// modulate density with angleFactor.</font>
00144 nbInst*= angleFact;
00145
00146 <font class="comment">// Now, 0<=nbInst<+oo. If we have 0.1, it means that we have 10% chance to spawn an instance.</font>
00147 <font class="comment">// So add a "random" value (with help of a noise with High frequency)</font>
00148 <font class="comment">// if nbInst==0, we should never have any instance (which may arise if evalOneLevelRandom()==1).</font>
00149 <font class="comment">// hence the 0.99f* which ensure that we do nbInst+= [0..1[.</font>
00150 nbInst+= 0.99f * <a class="code" href="namespaceNL3D.html#a472">RandomGenerator</a>.evalOneLevelRandom(posInWorld);
00151
00152 <font class="comment">// and then get only the integral part.</font>
00153 sint nbInstances= <a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(nbInst);
00154 nbInstances= max(0, nbInstances);
00155
00156 <font class="comment">// resize the instances</font>
00157 instances.resize(nbInstances);
00158
00159 <font class="comment">// Position generation.</font>
00160 <font class="comment">//===================</font>
00161 <font class="comment">// For now, generate them randomly.</font>
00162 <font class="keyword">static</font> CVector2f dSeed(0.513f, 0.267f); <font class="comment">// random values.</font>
00163 CVector seed= posInWorld;
00164 seed.z+= vegetSeed * 0.723f; <font class="comment">// 0.723f is a random value.</font>
00165 <font class="keywordflow">for</font>(sint i=0; i<nbInstances; i++)
00166 {
00167 instances[i].x= <a class="code" href="namespaceNL3D.html#a472">RandomGenerator</a>.evalOneLevelRandom(seed);
00168 seed.x+= dSeed.x;
00169 instances[i].y= <a class="code" href="namespaceNL3D.html#a472">RandomGenerator</a>.evalOneLevelRandom(seed);
00170 seed.y+= dSeed.y;
00171 }
00172 }
00173
00174
00175 <font class="comment">// ***************************************************************************</font>
<a name="l00176"></a><a class="code" href="classNL3D_1_1CVegetable.html#a2">00176</a> <font class="keywordtype">void</font> CVegetable::generateGroup(<font class="keyword">const</font> CVector &posInWorld, <font class="keyword">const</font> CVector &surfaceNormal, <font class="keywordtype">float</font> area, uint vegetSeed, std::vector<CVector2f> &instances)<font class="keyword"> const</font>
00177 <font class="keyword"></font>{
00178 <font class="comment">// number of instances to generate</font>
00179 <font class="keywordtype">float</font> dens= <a class="code" href="classNL3D_1_1CVegetable.html#m1">Density</a>.eval(posInWorld);
00180 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CVegetable.html#m2">MaxDensity</a> >= 0)
00181 dens= <a class="code" href="bit__set_8cpp.html#a0">min</a>(dens, <a class="code" href="classNL3D_1_1CVegetable.html#m2">MaxDensity</a>);
00182 <font class="keywordtype">float</font> nbInst= area * dens;
00183
00184 <font class="comment">// modulate by normal and generate them.</font>
00185 <a class="code" href="classNL3D_1_1CVegetable.html#c0">generateGroupEx</a>(nbInst, posInWorld, surfaceNormal, vegetSeed, instances);
00186 }
00187
00188
00189 <font class="comment">// ***************************************************************************</font>
<a name="l00190"></a><a class="code" href="classNL3D_1_1CVegetable.html#a3">00190</a> <font class="keywordtype">void</font> CVegetable::generateGroupBiLinear(<font class="keyword">const</font> CVector &posInWorld, <font class="keyword">const</font> CVector posInWorldBorder[4], <font class="keyword">const</font> CVector &surfaceNormal, <font class="keywordtype">float</font> area, uint vegetSeed, std::vector<CVector2f> &instances)<font class="keyword"> const</font>
00191 <font class="keyword"></font>{
00192 sint i;
00193 <font class="keyword">const</font> <font class="keywordtype">float</font> evenDistribFact= 12.25f; <font class="comment">// an arbitrary value to have a higher frequency for random.</font>
00194
00195 <font class="comment">// compute how many instances to generate on borders of the patch</font>
00196 <font class="comment">// ==================</font>
00197 <font class="keywordtype">float</font> edgeDensity[4];
00198 <font class="keywordflow">for</font>(i=0; i<4; i++)
00199 {
00200 <font class="comment">// Get number of instances generated on edges</font>
00201 edgeDensity[i]= area * <a class="code" href="classNL3D_1_1CVegetable.html#m1">Density</a>.eval(posInWorldBorder[i]);
00202 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CVegetable.html#m2">MaxDensity</a> >= 0)
00203 edgeDensity[i]= <a class="code" href="bit__set_8cpp.html#a0">min</a>(edgeDensity[i], area * <a class="code" href="classNL3D_1_1CVegetable.html#m2">MaxDensity</a>);
00204 edgeDensity[i]= max(0.f, edgeDensity[i]);
00205 }
00206 <font class="comment">// Average on center of the patch for each direction.</font>
00207 <font class="keywordtype">float</font> edgeDensityCenterX;
00208 <font class="keywordtype">float</font> edgeDensityCenterY;
00209 edgeDensityCenterX= 0.5f * (edgeDensity[0] + edgeDensity[1]);
00210 edgeDensityCenterY= 0.5f * (edgeDensity[2] + edgeDensity[3]);
00211
00212
00213 <font class="comment">// Average for all the patch</font>
00214 <font class="keywordtype">float</font> nbInstAverage= 0.5f * (edgeDensityCenterX + edgeDensityCenterY);
00215
00216
00217 <font class="comment">// generate instances on the patch</font>
00218 <font class="comment">// ==================</font>
00219 <a class="code" href="classNL3D_1_1CVegetable.html#c0">generateGroupEx</a>(nbInstAverage, posInWorld, surfaceNormal, vegetSeed, instances);
00220
00221
00222
00223 <font class="comment">// move instances x/y to follow edge repartition</font>
00224 <font class="comment">// ==================</font>
00225 <font class="comment">// If on a direction, both edges are 0 density, then must do a special formula</font>
00226 <font class="keywordtype">bool</font> middleX= edgeDensityCenterX<=1;
00227 <font class="keywordtype">bool</font> middleY= edgeDensityCenterY<=1;
00228 <font class="keywordtype">float</font> OOEdgeDCX=0.0;
00229 <font class="keywordtype">float</font> OOEdgeDCY=0.0;
00230 <font class="keywordflow">if</font>(!middleX) OOEdgeDCX= 1.0f / edgeDensityCenterX;
00231 <font class="keywordflow">if</font>(!middleY) OOEdgeDCY= 1.0f / edgeDensityCenterY;
00232 <font class="comment">// for all instances</font>
00233 <font class="keywordflow">for</font>(i=0; i<(sint)instances.size(); i++)
00234 {
00235 <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= instances[i].x;
00236 <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= instances[i].y;
00237 <font class="comment">// a seed for random.</font>
00238 CVector randSeed(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>*evenDistribFact, <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>*evenDistribFact, 0);
00239
00240 <font class="comment">// X change.</font>
00241 <font class="keywordflow">if</font>(middleX)
00242 {
00243 <font class="comment">// instances are grouped at middle. this is the bijection of easeInEaseOut</font>
00244 <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>+<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a> - <a class="code" href="classNL3D_1_1CVegetable.html#f0">easeInEaseOut</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>);
00245 <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>+<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a> - <a class="code" href="classNL3D_1_1CVegetable.html#f0">easeInEaseOut</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>);
00246 instances[i].x= <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>;
00247 }
00248 <font class="keywordflow">else</font>
00249 {
00250 <font class="comment">// Swap X, randomly. swap more on border</font>
00251 <font class="comment">// evaluate the density in X direction we have at this point.</font>
00252 <font class="keywordtype">float</font> densX= edgeDensity[0]*(1-<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>) + edgeDensity[1]* <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a> ;
00253 <font class="comment">// If on the side of the lowest density</font>
00254 <font class="keywordflow">if</font>(densX < edgeDensityCenterX)
00255 {
00256 <font class="comment">// may swap the position </font>
00257 <font class="keywordtype">float</font> rdSwap= (densX * OOEdgeDCX );
00258 <font class="comment">// (densX * OOEdgeDCX) E [0..1[. The more it is near 0, the more is has chance to be swapped.</font>
00259 rdSwap+= <a class="code" href="namespaceNL3D.html#a472">RandomGenerator</a>.evalOneLevelRandom( randSeed );
00260 <font class="keywordflow">if</font>(rdSwap<1)
00261 instances[i].x= 1 - instances[i].x;
00262 }
00263 }
00264
00265 <font class="comment">// Y change.</font>
00266 <font class="keywordflow">if</font>(middleY)
00267 {
00268 <font class="comment">// instances are grouped at middle. this is the bijection of easeInEaseOut</font>
00269 <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>+<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a> - <a class="code" href="classNL3D_1_1CVegetable.html#f0">easeInEaseOut</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>);
00270 <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>+<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a> - <a class="code" href="classNL3D_1_1CVegetable.html#f0">easeInEaseOut</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>);
00271 instances[i].y= <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>;
00272 }
00273 <font class="keywordflow">else</font>
00274 {
00275 <font class="comment">// Swap Y, randomly. swap more on border</font>
00276 <font class="comment">// evaluate the density in Y direction we have at this point.</font>
00277 <font class="keywordtype">float</font> densY= edgeDensity[2]*(1-<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>) + edgeDensity[3]* <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a> ;
00278 <font class="comment">// If on the side of the lowest density</font>
00279 <font class="keywordflow">if</font>(densY < edgeDensityCenterY)
00280 {
00281 <font class="comment">// may swap the position </font>
00282 <font class="keywordtype">float</font> rdSwap= (densY * OOEdgeDCY);
00283 <font class="comment">// (densY * OOEdgeDCY) E [0..1[. The more it is near 0, the more is has chance to be swapped.</font>
00284 rdSwap+= <a class="code" href="namespaceNL3D.html#a472">RandomGenerator</a>.evalOneLevelRandom( randSeed );
00285 <font class="keywordflow">if</font>(rdSwap<1)
00286 instances[i].y= 1 - instances[i].y;
00287 }
00288 }
00289
00290 }
00291
00292 }
00293
00294
00295 <font class="comment">// ***************************************************************************</font>
<a name="l00296"></a><a class="code" href="classNL3D_1_1CVegetable.html#a4">00296</a> <font class="keywordtype">void</font> CVegetable::reserveIgAddInstances(CVegetableInstanceGroupReserve &vegetIgReserve, TVegetableWater vegetWaterState, uint numInstances)<font class="keyword"> const</font>
00297 <font class="keyword"></font>{
00298 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CVegetable.html#o5">_Manager</a>);
00299
00300 <font class="keywordflow">if</font> (_VegetableShape)
00301 <a class="code" href="classNL3D_1_1CVegetable.html#o5">_Manager</a>->reserveIgAddInstances(vegetIgReserve, <a class="code" href="classNL3D_1_1CVegetable.html#o6">_VegetableShape</a>, (CVegetableManager::TVegetableWater)vegetWaterState, numInstances);
00302 }
00303
00304
00305 <font class="comment">// ***************************************************************************</font>
<a name="l00306"></a><a class="code" href="classNL3D_1_1CVegetable.html#a5">00306</a> <font class="keywordtype">void</font> CVegetable::generateInstance(CVegetableInstanceGroup *ig, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &posInWorld,
00307 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CRGBAF.html">NLMISC::CRGBAF</a> &modulateAmbientColor, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CRGBAF.html">NLMISC::CRGBAF</a> &modulateDiffuseColor, <font class="keywordtype">float</font> blendDistMax,
00308 TVegetableWater vegetWaterState, CVegetableUV8 dlmUV)<font class="keyword"> const</font>
00309 <font class="keyword"></font>{
00310 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CVegetable.html#o5">_Manager</a>);
00311
00312
00313 CVector seed= posInWorld.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_4">getPos</a>();
00314
00315 <font class="comment">// Generate Matrix.</font>
00316 <font class="comment">// ===============</font>
00317
00318 <font class="comment">// Generate a random Scale / Rotation matrix.</font>
00319 CMatrix randomMat;
00320 <font class="comment">// setup rotation</font>
00321 CVector rot;
00322 rot.x= <a class="code" href="classNL3D_1_1CVegetable.html#m5">Rx</a>.eval(seed);
00323 rot.y= <a class="code" href="classNL3D_1_1CVegetable.html#m6">Ry</a>.eval(seed);
00324 rot.z= <a class="code" href="classNL3D_1_1CVegetable.html#m7">Rz</a>.eval(seed);
00325 randomMat.setRot(rot, CMatrix::ZXY);
00326 <font class="comment">// scale.</font>
00327 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CVegetable.html#m3">Sxy</a>.Abs!=0 || <a class="code" href="classNL3D_1_1CVegetable.html#m3">Sxy</a>.Rand!=0 || <a class="code" href="classNL3D_1_1CVegetable.html#m4">Sz</a>.Abs!=0 || <a class="code" href="classNL3D_1_1CVegetable.html#m4">Sz</a>.Rand!=0)
00328 {
00329 CVector scale;
00330 scale.x= scale.y= <a class="code" href="classNL3D_1_1CVegetable.html#m3">Sxy</a>.eval(seed);
00331 scale.z= <a class="code" href="classNL3D_1_1CVegetable.html#m4">Sz</a>.eval(seed);
00332 randomMat.scale(scale);
00333 }
00334
00335 <font class="comment">// Final Matrix.</font>
00336 CMatrix finalMatrix;
00337 finalMatrix= posInWorld * randomMat;
00338
00339 <font class="comment">// Generate Color and factor</font>
00340 <font class="comment">// ===============</font>
00341 CRGBAF materialColor(1,1,1,1);
00342 <font class="comment">// evaluate gradients. If none, color not modified.</font>
00343 <a class="code" href="classNL3D_1_1CVegetable.html#m11">Color</a>.eval(seed, materialColor);
00344 <font class="comment">// modulate with user</font>
00345 CRGBAF ambient, diffuse;
00346 ambient= modulateAmbientColor * materialColor;
00347 diffuse= modulateDiffuseColor * materialColor;
00348
00349 <font class="comment">// Generate a bendFactor</font>
00350 <font class="keywordtype">float</font> bendFactor= <a class="code" href="classNL3D_1_1CVegetable.html#m8">BendFactor</a>.eval(seed);
00351 <font class="comment">// Generate a bendPhase</font>
00352 <font class="keywordtype">float</font> bendPhase= <a class="code" href="classNL3D_1_1CVegetable.html#m9">BendPhase</a>.eval(seed);
00353
00354
00355 <font class="comment">// Append to the vegetableManager</font>
00356 <font class="comment">// ===============</font>
00357 <font class="keywordflow">if</font> (_VegetableShape)
00358 {
00359 <a class="code" href="classNL3D_1_1CVegetable.html#o5">_Manager</a>->addInstance(ig, <a class="code" href="classNL3D_1_1CVegetable.html#o6">_VegetableShape</a>, finalMatrix, ambient, diffuse,
00360 bendFactor, bendPhase, <a class="code" href="classNL3D_1_1CVegetable.html#m10">BendFrequencyFactor</a>, blendDistMax,
00361 (CVegetableManager::TVegetableWater)vegetWaterState, dlmUV);
00362 }
00363 }
00364
00365
00366 <font class="comment">// ***************************************************************************</font>
<a name="l00367"></a><a class="code" href="classNL3D_1_1CVegetable.html#a6">00367</a> <font class="keywordtype">void</font> CVegetable::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f)
00368 {
00369 <font class="comment">/*</font>
00370 <font class="comment"> Version 1:</font>
00371 <font class="comment"> - add BendFrequencyFactor</font>
00372 <font class="comment"> Version 0:</font>
00373 <font class="comment"> - base version</font>
00374 <font class="comment"> */</font>
00375 sint ver= f.<a class="code" href="classNLMISC_1_1IStream.html#a29">serialVersion</a>(1);
00376
00377 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m0">ShapeName</a>);
00378 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m1">Density</a>);
00379 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m2">MaxDensity</a>);
00380 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#o0">_CosAngleMin</a>, <a class="code" href="classNL3D_1_1CVegetable.html#o1">_CosAngleMax</a>, <a class="code" href="classNL3D_1_1CVegetable.html#o2">_CosAngleMiddle</a>, <a class="code" href="classNL3D_1_1CVegetable.html#o3">_OOCosAngleDist</a>);
00381 f.<a class="code" href="classNLMISC_1_1IStream.html#a6">serialEnum</a>(<a class="code" href="classNL3D_1_1CVegetable.html#o4">_AngleType</a>);
00382 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m3">Sxy</a>, <a class="code" href="classNL3D_1_1CVegetable.html#m4">Sz</a>);
00383 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m5">Rx</a>, <a class="code" href="classNL3D_1_1CVegetable.html#m6">Ry</a>, <a class="code" href="classNL3D_1_1CVegetable.html#m7">Rz</a>);
00384 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m8">BendFactor</a>);
00385 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m9">BendPhase</a>);
00386 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m11">Color</a>);
00387 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m12">DistType</a>);
00388
00389 <font class="keywordflow">if</font>(ver>=1)
00390 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CVegetable.html#m10">BendFrequencyFactor</a>);
00391 <font class="keywordflow">else</font>
00392 <a class="code" href="classNL3D_1_1CVegetable.html#m10">BendFrequencyFactor</a>= 1;
00393 }
00394
00395
00396 } <font class="comment">// NL3D</font>
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