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<hr><h1>ps_face_look_at.cpp</h1><a href="ps__face__look__at_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="ps__face__look__at_8h.html">3d/ps_face_look_at.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="ps__macro_8h.html">3d/ps_macro.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="fast__floor_8h.html">3d/fast_floor.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="ps__iterator_8h.html">3d/ps_iterator.h</a>"</font>
00033
00034
00035 <font class="keyword">namespace </font>NL3D
00036 {
00037
00038
00039
00041 <font class="comment">// CPSFaceLookAt implementation //</font>
00043 <font class="comment"></font>
00044
<a name="l00050"></a><a class="code" href="classNL3D_1_1CPSFaceLookAtHelper.html">00050</a> <font class="keyword">class </font>CPSFaceLookAtHelper
00051 {
00052 <font class="keyword">public</font>:
00053 <font class="keyword">template</font> <<font class="keyword">class</font> T>
<a name="l00054"></a><a class="code" href="classNL3D_1_1CPSFaceLookAtHelper.html#d0">00054</a> <font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CPSFaceLookAtHelper.html#d0">drawLookAt</a>(T it, T speedIt, CPSFaceLookAt &la, uint size, uint32 srcStep)
00055 {
00056 PARTICLES_CHECK_MEM;
00057 <a class="code" href="debug_8h.html#a6">nlassert</a>(la._Owner);
00058 IDriver *driver = la.getDriver();
00059
00060 la.updateMatBeforeRendering(driver);
00061
00062 CVertexBuffer &vb = la.getNeededVB();
00063 la._Owner->incrementNbDrawnParticles(size); <font class="comment">// for benchmark purpose </font>
00064 la.setupDriverModelMatrix();
00065 driver->activeVertexBuffer(vb);
00066 <font class="keyword">const</font> CVector I = la.computeI();
00067 <font class="keyword">const</font> CVector J = la.computeJ();
00068 <font class="keyword">const</font> CVector K = la.computeK();
00069 <font class="keyword">const</font> <font class="keywordtype">float</font> *rotTable = CPSRotated2DParticle::getRotTable();
00070 <font class="comment">// for each the particle can be constantly rotated or have an independant rotation for each particle</font>
00071 <font class="comment">// number of face left, and number of face to process at once</font>
00072 uint32 leftToDo = size, toProcess;
00073 <font class="keywordtype">float</font> pSizes[CPSQuad::quadBufSize]; <font class="comment">// the sizes to use </font>
00074 <font class="keywordtype">float</font> pSecondSizes[CPSQuad::quadBufSize]; <font class="comment">// the second sizes to use</font>
00075 <font class="keywordtype">float</font> *currentSize;
00076 uint32 currentSizeStep = la._SizeScheme ? 1 : 0;
00077 <font class="comment">// point the vector part in the current vertex</font>
00078 uint8 *ptPos;
00079 <font class="comment">// strides to go from one vertex to another one</font>
00080 <font class="keyword">const</font> uint32 <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> = vb.getVertexSize(), stride2 = <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> << 1, stride3 = <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + stride2, stride4 = <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> << 2;
00081 <font class="keywordflow">if</font> (!la._Angle2DScheme)
00082 {
00083 <font class="comment">// constant rotation case</font>
00084 <font class="keywordflow">do</font>
00085 {
00086 <font class="comment">// restart at the beginning of the vertex buffer</font>
00087 ptPos = (uint8 *) vb.getVertexCoordPointer();
00088 toProcess = leftToDo <= CPSQuad::quadBufSize ? leftToDo : CPSQuad::quadBufSize;
00089
00090 <font class="keywordflow">if</font> (la._SizeScheme)
00091 {
00092 currentSize = (<font class="keywordtype">float</font> *) la._SizeScheme->make(la._Owner, size- leftToDo, pSizes, <font class="keyword">sizeof</font>(<font class="keywordtype">float</font>), toProcess, <font class="keyword">true</font>, srcStep);
00093 }
00094 <font class="keywordflow">else</font>
00095 {
00096 currentSize = &la._ParticleSize;
00097 }
00098
00099 la.updateVbColNUVForRender(vb, size - leftToDo, toProcess, srcStep);
00100 T endIt = it + toProcess;
00101 <font class="keywordflow">if</font> (la._MotionBlurCoeff == 0.f)
00102 {
00103 <font class="keywordflow">if</font> (!la._IndependantSizes)
00104 {
00105 <font class="keyword">const</font> uint32 tabIndex = (((uint32) la._Angle2D) & 0xff) << 2;
00106 <font class="keyword">const</font> CVector v1 = rotTable[tabIndex] * I + rotTable[tabIndex + 1] * K;
00107 <font class="keyword">const</font> CVector v2 = rotTable[tabIndex + 2] * I + rotTable[tabIndex + 3] * K;
00108 <font class="keywordflow">if</font> (currentSizeStep)
00109 {
00110 <font class="keywordflow">while</font> (it != endIt)
00111 {
00112 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00113 ((CVector *) ptPos)->x = (*it).x + *currentSize * v1.x;
00114 ((CVector *) ptPos)->y = (*it).y + *currentSize * v1.y;
00115 ((CVector *) ptPos)->z = (*it).z + *currentSize * v1.z;
00116 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00117
00118 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00119 ((CVector *) ptPos)->x = (*it).x + *currentSize * v2.x;
00120 ((CVector *) ptPos)->y = (*it).y + *currentSize * v2.y;
00121 ((CVector *) ptPos)->z = (*it).z + *currentSize * v2.z;
00122 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00123
00124 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00125 ((CVector *) ptPos)->x = (*it).x - *currentSize * v1.x;
00126 ((CVector *) ptPos)->y = (*it).y - *currentSize * v1.y;
00127 ((CVector *) ptPos)->z = (*it).z - *currentSize * v1.z;
00128 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00129
00130 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00131 ((CVector *) ptPos)->x = (*it).x - *currentSize * v2.x;
00132 ((CVector *) ptPos)->y = (*it).y - *currentSize * v2.y;
00133 ((CVector *) ptPos)->z = (*it).z - *currentSize * v2.z;
00134 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00135
00136 ++it;
00137 currentSize += currentSizeStep;
00138 }
00139 }
00140 <font class="keywordflow">else</font>
00141 {
00142 <font class="comment">// constant size</font>
00143 <font class="keyword">const</font> CVector myV1 = *currentSize * v1;
00144 <font class="keyword">const</font> CVector myV2 = *currentSize * v2;
00145
00146 <font class="keywordflow">while</font> (it != endIt)
00147 {
00148 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00149 ((CVector *) ptPos)->x = (*it).x + myV1.x;
00150 ((CVector *) ptPos)->y = (*it).y + myV1.y;
00151 ((CVector *) ptPos)->z = (*it).z + myV1.z;
00152 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00153
00154 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00155 ((CVector *) ptPos)->x = (*it).x + myV2.x;
00156 ((CVector *) ptPos)->y = (*it).y + myV2.y;
00157 ((CVector *) ptPos)->z = (*it).z + myV2.z;
00158 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00159
00160 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00161 ((CVector *) ptPos)->x = (*it).x - myV1.x;
00162 ((CVector *) ptPos)->y = (*it).y - myV1.y;
00163 ((CVector *) ptPos)->z = (*it).z - myV1.z;
00164 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00165
00166 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00167 ((CVector *) ptPos)->x = (*it).x - myV2.x;
00168 ((CVector *) ptPos)->y = (*it).y - myV2.y;
00169 ((CVector *) ptPos)->z = (*it).z - myV2.z;
00170 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00171 ++it;
00172 }
00173 }
00174 }
00175 <font class="keywordflow">else</font> <font class="comment">// independant sizes</font>
00176 {
00177 <font class="keyword">const</font> CVector v1 = CPSUtil::getCos((sint32) la._Angle2D) * I + CPSUtil::getSin((sint32) la._Angle2D) * K;
00178 <font class="keyword">const</font> CVector v2 = - CPSUtil::getSin((sint32) la._Angle2D) * I + CPSUtil::getCos((sint32) la._Angle2D) * K;
00179
00180 <font class="keywordtype">float</font> *currentSize2;
00181 <font class="keywordtype">float</font> secondSize;
00182 uint32 currentSizeStep2;
00183 <font class="keywordflow">if</font> (la._SecondSize.getSizeScheme())
00184 {
00185 currentSize2 = (<font class="keywordtype">float</font> *) la._SecondSize.getSizeScheme()->make(la._Owner, size- leftToDo, pSecondSizes, <font class="keyword">sizeof</font>(<font class="keywordtype">float</font>), toProcess, <font class="keyword">true</font>, srcStep);
00186 currentSizeStep2 = 1;
00187 }
00188 <font class="keywordflow">else</font>
00189 {
00190 secondSize = la._SecondSize.getSize();
00191 currentSize2 = &secondSize;
00192 currentSizeStep2 = 0;
00193 }
00194
00195
00196 <font class="keywordflow">while</font> (it != endIt)
00197 {
00198 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00199 ((CVector *) ptPos)->x = (*it).x - *currentSize * v1.x + *currentSize2 * v2.x;
00200 ((CVector *) ptPos)->y = (*it).y - *currentSize * v1.y + *currentSize2 * v2.y;
00201 ((CVector *) ptPos)->z = (*it).z - *currentSize * v1.z + *currentSize2 * v2.z;
00202 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00203
00204 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00205 ((CVector *) ptPos)->x = (*it).x + *currentSize * v1.x + *currentSize2 * v2.x;
00206 ((CVector *) ptPos)->y = (*it).y + *currentSize * v1.y + *currentSize2 * v2.y;
00207 ((CVector *) ptPos)->z = (*it).z + *currentSize * v1.z + *currentSize2 * v2.z;
00208 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00209
00210 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00211 ((CVector *) ptPos)->x = (*it).x + *currentSize * v1.x - *currentSize2 * v2.x;
00212 ((CVector *) ptPos)->y = (*it).y + *currentSize * v1.y - *currentSize2 * v2.y;
00213 ((CVector *) ptPos)->z = (*it).z + *currentSize * v1.z - *currentSize2 * v2.z;
00214 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00215
00216 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00217 ((CVector *) ptPos)->x = (*it).x - *currentSize * v1.x - *currentSize2 * v2.x;
00218 ((CVector *) ptPos)->y = (*it).y - *currentSize * v1.y - *currentSize2 * v2.y;
00219 ((CVector *) ptPos)->z = (*it).z - *currentSize * v1.z - *currentSize2 * v2.z;
00220 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00221 ++it;
00222 currentSize += currentSizeStep;
00223 currentSize2 += currentSizeStep2;
00224 }
00225 }
00226 }
00227 <font class="keywordflow">else</font>
00228 {
00229 <font class="comment">// perform motion, blur, we need an iterator on speed</font>
00230 <font class="comment">// independant sizes and rotation not supported for now with motion blur </font>
00231 <font class="keyword">const</font> CVector v1 = I + K;
00232 <font class="keyword">const</font> CVector v2 = K - I;
00233 CVector startV, endV, mbv1, mbv1n, mbv12, mbv2;
00234 <font class="comment">// norme of the v1 vect</font>
00235 <font class="keywordtype">float</font> n;
00236 <font class="keyword">const</font> <font class="keywordtype">float</font> epsilon = 10E-5f;
00237 <font class="keyword">const</font> <font class="keywordtype">float</font> normEpsilon = 10E-6f;
00238
00239 CMatrix tMat = la._Owner->isInSystemBasis() ? la.getViewMat() * la.getSysMat()
00240 : la.getViewMat();
00241
00242 <font class="keywordflow">while</font> (it != endIt)
00243 {
00244 <font class="comment">// project the speed in the projection plane</font>
00245 <font class="comment">// this give us the v1 vect</font>
00246 startV = tMat * *it ;
00247 endV = tMat * (*it + *speedIt);
00248 <font class="keywordflow">if</font> (startV.y > epsilon || endV.y > epsilon)
00249 {
00250 <font class="keywordflow">if</font> (startV.y < epsilon)
00251 {
00252 <font class="keywordflow">if</font> (fabsf(endV.y - startV.y) > normEpsilon)
00253 {
00254 startV = endV + (endV.y - epsilon) / (endV.y - startV.y) * (startV - endV);
00255 }
00256 startV.y = epsilon;
00257 }
00258 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (endV.y < epsilon)
00259 {
00260 <font class="keywordflow">if</font> (fabsf(endV.y - startV.y) > normEpsilon)
00261 {
00262 endV = startV + (startV.y - epsilon) / (startV.y - endV.y) * (endV - startV);
00263 }
00264 endV.y = epsilon;
00265 }
00266
00267 mbv1 = (startV.x / startV.y - endV.x / endV.y) * I
00268 + (startV.z / startV.y - endV.z / endV.y) * K ;
00269
00270 n = mbv1.norm();
00271 <font class="keywordflow">if</font> (n > la._Threshold)
00272 {
00273 mbv1 *= la._Threshold / n;
00274 n = la._Threshold;
00275 }
00276 <font class="keywordflow">if</font> (n > normEpsilon)
00277 {
00278 mbv1n = mbv1 / n;
00279 mbv2 = *currentSize * (J ^ mbv1n);
00280 mbv12 = -*currentSize * mbv1n;
00281 mbv1 *= *currentSize * (1 + la._MotionBlurCoeff * n * n) / n;
00282
00283 *(CVector *) ptPos = *it - mbv2;
00284 *(CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>) = *it + mbv1;
00285 *(CVector *) (ptPos + stride2) = *it + mbv2;
00286 *(CVector *) (ptPos + stride3) = *it + mbv12;
00287
00288
00289 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00290 ((CVector *) ptPos)->x = (*it).x - mbv2.x;
00291 ((CVector *) ptPos)->y = (*it).y - mbv2.y;
00292 ((CVector *) ptPos)->z = (*it).z - mbv2.z;
00293
00294 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>);
00295 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->x = (*it).x + mbv1.x;
00296 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->y = (*it).y + mbv1.y;
00297 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->z = (*it).z + mbv1.z;
00298
00299 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + stride2);
00300 ((CVector *) (ptPos + stride2))->x = (*it).x + mbv2.x;
00301 ((CVector *) (ptPos + stride2))->y = (*it).y + mbv2.y;
00302 ((CVector *) (ptPos + stride2))->z = (*it).z + mbv2.z;
00303
00304
00305 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + stride3);
00306 ((CVector *) (ptPos + stride3))->x = (*it).x + mbv12.x;
00307 ((CVector *) (ptPos + stride3))->y = (*it).y + mbv12.y;
00308 ((CVector *) (ptPos + stride3))->z = (*it).z + mbv12.z;
00309
00310 }
00311 <font class="keywordflow">else</font> <font class="comment">// speed too small, we must avoid imprecision</font>
00312 {
00313 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00314 ((CVector *) ptPos)->x = (*it).x - *currentSize * v2.x;
00315 ((CVector *) ptPos)->y = (*it).y - *currentSize * v2.y;
00316 ((CVector *) ptPos)->z = (*it).z - *currentSize * v2.z;
00317
00318 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>);
00319 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->x = (*it).x + *currentSize * v1.x;
00320 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->y = (*it).y + *currentSize * v1.y;
00321 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->z = (*it).z + *currentSize * v1.z;
00322
00323 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + stride2);
00324 ((CVector *) (ptPos + stride2))->x = (*it).x + *currentSize * v2.x;
00325 ((CVector *) (ptPos + stride2))->y = (*it).y + *currentSize * v2.y;
00326 ((CVector *) (ptPos + stride2))->z = (*it).z + *currentSize * v2.z;
00327
00328
00329 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + stride3);
00330 ((CVector *) (ptPos + stride3))->x = (*it).x - *currentSize * v1.x;
00331 ((CVector *) (ptPos + stride3))->y = (*it).y - *currentSize * v1.y;
00332 ((CVector *) (ptPos + stride3))->z = (*it).z - *currentSize * v1.z;
00333 }
00334 }
00335 <font class="keywordflow">else</font>
00336 {
00337
00338 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00339 ((CVector *) ptPos)->x = (*it).x - *currentSize * v2.x;
00340 ((CVector *) ptPos)->y = (*it).y - *currentSize * v2.y;
00341 ((CVector *) ptPos)->z = (*it).z - *currentSize * v2.z;
00342
00343 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>);
00344 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->x = (*it).x + *currentSize * v1.x;
00345 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->y = (*it).y + *currentSize * v1.y;
00346 ((CVector *) (ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>))->z = (*it).z + *currentSize * v1.z;
00347
00348 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + stride2);
00349 ((CVector *) (ptPos + stride2))->x = (*it).x + *currentSize * v2.x;
00350 ((CVector *) (ptPos + stride2))->y = (*it).y + *currentSize * v2.y;
00351 ((CVector *) (ptPos + stride2))->z = (*it).z + *currentSize * v2.z;
00352
00353
00354 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + stride3);
00355 ((CVector *) (ptPos + stride3))->x = (*it).x - *currentSize * v1.x;
00356 ((CVector *) (ptPos + stride3))->y = (*it).y - *currentSize * v1.y;
00357 ((CVector *) (ptPos + stride3))->z = (*it).z - *currentSize * v1.z;
00358 }
00359
00360 ptPos += stride4;
00361 ++it;
00362 ++speedIt;
00363 currentSize += currentSizeStep;
00364 }
00365
00366 }
00367 driver->renderQuads(la._Mat, 0, toProcess);
00368 leftToDo -= toProcess;
00369 }
00370 <font class="keywordflow">while</font> (leftToDo);
00371 }
00372 <font class="keywordflow">else</font>
00373 {
00374 <font class="keywordtype">float</font> pAngles[CPSQuad::quadBufSize]; <font class="comment">// the angles to use</font>
00375 <font class="keywordtype">float</font> *currentAngle;
00376 <font class="keywordflow">do</font>
00377 {
00378 <font class="comment">// restart at the beginning of the vertex buffer</font>
00379 ptPos = (uint8 *) vb.getVertexCoordPointer();
00380 toProcess = leftToDo <= CPSQuad::quadBufSize ? leftToDo : CPSQuad::quadBufSize;
00381 <font class="keywordflow">if</font> (la._SizeScheme)
00382 {
00383 currentSize = (<font class="keywordtype">float</font> *) la._SizeScheme->make(la._Owner, size - leftToDo, pSizes, <font class="keyword">sizeof</font>(<font class="keywordtype">float</font>), toProcess, <font class="keyword">true</font>, srcStep);
00384 }
00385 <font class="keywordflow">else</font>
00386 {
00387 currentSize = &la._ParticleSize;
00388 }
00389 currentAngle = (<font class="keywordtype">float</font> *) la._Angle2DScheme->make(la._Owner, size - leftToDo, pAngles, <font class="keyword">sizeof</font>(<font class="keywordtype">float</font>), toProcess, <font class="keyword">true</font>, srcStep);
00390 la.updateVbColNUVForRender(vb, size - leftToDo, toProcess, srcStep);
00391 T endIt = it + toProcess;
00392 CVector v1, v2;
00393 <a class="code" href="namespaceNL3D.html#a360">OptFastFloorBegin</a>();
00394 <font class="keywordflow">if</font> (!la._IndependantSizes)
00395 {
00396 <font class="keywordflow">while</font> (it != endIt)
00397 {
00398 <font class="keyword">const</font> uint32 tabIndex = ((<a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(*currentAngle)) & 0xff) << 2;
00399 <font class="comment">// lets avoid some ctor calls</font>
00400 v1.x = *currentSize * (rotTable[tabIndex] * I.x + rotTable[tabIndex + 1] * K.x);
00401 v1.y = *currentSize * (rotTable[tabIndex] * I.y + rotTable[tabIndex + 1] * K.y);
00402 v1.z = *currentSize * (rotTable[tabIndex] * I.z + rotTable[tabIndex + 1] * K.z);
00403
00404 v2.x = *currentSize * (rotTable[tabIndex + 2] * I.x + rotTable[tabIndex + 3] * K.x);
00405 v2.y = *currentSize * (rotTable[tabIndex + 2] * I.y + rotTable[tabIndex + 3] * K.y);
00406 v2.z = *currentSize * (rotTable[tabIndex + 2] * I.z + rotTable[tabIndex + 3] * K.z);
00407
00408 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00409 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>);
00410 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + stride2);
00411 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos + stride3);
00412
00413 ((CVector *) ptPos)->x = (*it).x + v1.x;
00414 ((CVector *) ptPos)->y = (*it).y + v1.y;
00415 ((CVector *) ptPos)->z = (*it).z + v1.z;
00416 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00417
00418 ((CVector *) ptPos)->x = (*it).x + v2.x;
00419 ((CVector *) ptPos)->y = (*it).y + v2.y;
00420 ((CVector *) ptPos)->z = (*it).z + v2.z;
00421 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00422
00423 ((CVector *) ptPos)->x = (*it).x - v1.x;
00424 ((CVector *) ptPos)->y = (*it).y - v1.y;
00425 ((CVector *) ptPos)->z = (*it).z - v1.z;
00426 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00427
00428 ((CVector *) ptPos)->x = (*it).x - v2.x;
00429 ((CVector *) ptPos)->y = (*it).y - v2.y;
00430 ((CVector *) ptPos)->z = (*it).z - v2.z;
00431 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00432
00433 ++it;
00434 currentSize += currentSizeStep;
00435 ++currentAngle;
00436 }
00437 }
00438 <font class="keywordflow">else</font> <font class="comment">// independant size, and non-constant rotation</font>
00439 {
00440
00441 <font class="keywordtype">float</font> *currentSize2;
00442 <font class="keywordtype">float</font> secondSize;
00443 uint32 currentSizeStep2;
00444 <font class="keywordflow">if</font> (la._SecondSize.getSizeScheme())
00445 {
00446 currentSize2 = (<font class="keywordtype">float</font> *) la._SecondSize.getSizeScheme()->make(la._Owner, size- leftToDo, pSecondSizes, <font class="keyword">sizeof</font>(<font class="keywordtype">float</font>), toProcess, <font class="keyword">true</font>, srcStep);
00447 currentSizeStep2 = 1;
00448 }
00449 <font class="keywordflow">else</font>
00450 {
00451 secondSize = la._SecondSize.getSize();
00452 currentSize2 = &secondSize;
00453 currentSizeStep2 = 0;
00454 }
00455
00456 <font class="keywordtype">float</font> cosAngle, sinAngle;
00457 <font class="keywordflow">while</font> (it != endIt)
00458 {
00459 cosAngle = CPSUtil::getCos((sint32) *currentAngle);
00460 sinAngle = CPSUtil::getSin((sint32) *currentAngle);
00461 v1 = cosAngle * I + sinAngle * K;
00462 v2 = - sinAngle * I + cosAngle * K;
00463
00464 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00465 ((CVector *) ptPos)->x = (*it).x - *currentSize * v1.x + *currentSize2 * v2.x;
00466 ((CVector *) ptPos)->y = (*it).y - *currentSize * v1.y + *currentSize2 * v2.y;
00467 ((CVector *) ptPos)->z = (*it).z - *currentSize * v1.z + *currentSize2 * v2.z;
00468 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00469
00470 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00471 ((CVector *) ptPos)->x = (*it).x + *currentSize * v1.x + *currentSize2 * v2.x;
00472 ((CVector *) ptPos)->y = (*it).y + *currentSize * v1.y + *currentSize2 * v2.y;
00473 ((CVector *) ptPos)->z = (*it).z + *currentSize * v1.z + *currentSize2 * v2.z;
00474 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00475
00476 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00477 ((CVector *) ptPos)->x = (*it).x + *currentSize * v1.x - *currentSize2 * v2.x;
00478 ((CVector *) ptPos)->y = (*it).y + *currentSize * v1.y - *currentSize2 * v2.y;
00479 ((CVector *) ptPos)->z = (*it).z + *currentSize * v1.z - *currentSize2 * v2.z;
00480 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00481
00482 <a class="code" href="ps__macro_8h.html#a0">CHECK_VERTEX_BUFFER</a>(vb, ptPos);
00483 ((CVector *) ptPos)->x = (*it).x - *currentSize * v1.x - *currentSize2 * v2.x;
00484 ((CVector *) ptPos)->y = (*it).y - *currentSize * v1.y - *currentSize2 * v2.y;
00485 ((CVector *) ptPos)->z = (*it).z - *currentSize * v1.z - *currentSize2 * v2.z;
00486 ptPos += <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>;
00487 ++it;
00488 ++currentAngle;
00489 currentSize += currentSizeStep;
00490 currentSize2 += currentSizeStep2;
00491 }
00492 }
00493 <a class="code" href="namespaceNL3D.html#a361">OptFastFloorEnd</a>();
00494 driver->renderQuads(la._Mat, 0, toProcess);
00495 leftToDo -= toProcess;
00496 }
00497 <font class="keywordflow">while</font> (leftToDo);
00498 }
00499 PARTICLES_CHECK_MEM;
00500 }
00501 };
00502
<a name="l00504"></a><a class="code" href="classNL3D_1_1CPSFaceLookAt.html#b0">00504</a> <font class="keywordtype">void</font> CPSFaceLookAt::draw(<font class="keywordtype">bool</font> opaque)
00505 {
00506 PARTICLES_CHECK_MEM;
00507 <font class="keywordflow">if</font> (!<a class="code" href="classNL3D_1_1CPSLocatedBindable.html#n0">_Owner</a>->getSize()) <font class="keywordflow">return</font>;
00508
00509 uint32 <a class="code" href="classNL3D_1_1CPSParticle.html#a4">step</a>;
00510 uint numToProcess;
00511 <a class="code" href="classNL3D_1_1CPSParticle.html#b4">computeSrcStep</a>(<a class="code" href="classNL3D_1_1CPSParticle.html#a4">step</a>, numToProcess);
00512 <font class="keywordflow">if</font> (!numToProcess) <font class="keywordflow">return</font>;
00513
00514
00515 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CPSParticle.html#a4">step</a> == (1 << 16))
00516 {
00517 CPSFaceLookAtHelper::drawLookAt(<a class="code" href="classNL3D_1_1CPSLocatedBindable.html#n0">_Owner</a>->getPos().begin(),
00518 <a class="code" href="classNL3D_1_1CPSLocatedBindable.html#n0">_Owner</a>->getSpeed().begin(),
00519 *<font class="keyword">this</font>,
00520 numToProcess,
00521 <a class="code" href="classNL3D_1_1CPSParticle.html#a4">step</a>
00522 );
00523 }
00524 <font class="keywordflow">else</font>
00525 {
00526 CPSFaceLookAtHelper::drawLookAt(<a class="code" href="namespaceNL3D.html#a199">TIteratorVectStep1616</a>(<a class="code" href="classNL3D_1_1CPSLocatedBindable.html#n0">_Owner</a>->getPos().begin(), 0, <a class="code" href="classNL3D_1_1CPSParticle.html#a4">step</a>),
00527 <a class="code" href="namespaceNL3D.html#a199">TIteratorVectStep1616</a>(<a class="code" href="classNL3D_1_1CPSLocatedBindable.html#n0">_Owner</a>->getSpeed().begin(), 0, <a class="code" href="classNL3D_1_1CPSParticle.html#a4">step</a>),
00528 *<font class="keyword">this</font>,
00529 numToProcess,
00530 <a class="code" href="classNL3D_1_1CPSParticle.html#a4">step</a>
00531 );
00532 }
00533
00534 PARTICLES_CHECK_MEM;
00535 }
00536
<a name="l00538"></a><a class="code" href="classNL3D_1_1CPSFaceLookAt.html#a0">00538</a> CPSFaceLookAt::CPSFaceLookAt(CSmartPtr<ITexture> tex) : CPSQuad(tex), _MotionBlurCoeff(0.f)
00539 , _Threshold(0.5f), _IndependantSizes(false)
00540 {
00541 <a class="code" href="classNL3D_1_1CPSFaceLookAt.html#n2">_SecondSize</a>.<a class="code" href="structNL3D_1_1CPSFaceLookAt_1_1CSecondSize.html#m0">Owner</a> = <font class="keyword">this</font>;
00542 <a class="code" href="classNL3D_1_1CPSLocatedBindable.html#n3">_Name</a> = std::string(<font class="stringliteral">"LookAt"</font>);
00543 }
00544
<a name="l00546"></a><a class="code" href="classNL3D_1_1CPSFaceLookAt.html#b1">00546</a> <font class="keywordtype">void</font> CPSFaceLookAt::newElement(CPSLocated *emitterLocated, uint32 emitterIndex)
00547 {
00548 CPSQuad::newElement(emitterLocated, emitterIndex);
00549 <a class="code" href="classNL3D_1_1CPSRotated2DParticle.html#b1">newAngle2DElement</a>(emitterLocated, emitterIndex);
00550 }
00551
<a name="l00553"></a><a class="code" href="classNL3D_1_1CPSFaceLookAt.html#b2">00553</a> <font class="keywordtype">void</font> CPSFaceLookAt::deleteElement(uint32 <a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>)
00554 {
00555 CPSQuad::deleteElement(<a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>);
00556 <a class="code" href="classNL3D_1_1CPSRotated2DParticle.html#b2">deleteAngle2DElement</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a358">index</a>);
00557 }
00558
<a name="l00560"></a><a class="code" href="classNL3D_1_1CPSFaceLookAt.html#b3">00560</a> <font class="keywordtype">void</font> CPSFaceLookAt::resize(uint32 capacity)
00561 {
00562 <a class="code" href="debug_8h.html#a6">nlassert</a>(capacity < (1 << 16));
00563 CPSQuad::resize(capacity);
00564 <a class="code" href="classNL3D_1_1CPSRotated2DParticle.html#b3">resizeAngle2D</a>(capacity);
00565 }
00566
00567
<a name="l00569"></a><a class="code" href="classNL3D_1_1CPSFaceLookAt.html#a1">00569</a> <font class="keywordtype">void</font> CPSFaceLookAt::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f) <font class="keywordflow">throw</font>(NLMISC::EStream)
00570 {
00571 sint ver = f.serialVersion(2);
00572 CPSQuad::serial(f);
00573 CPSRotated2DParticle::serialAngle2DScheme(f);
00574 f.serial(_MotionBlurCoeff);
00575 <font class="keywordflow">if</font> (_MotionBlurCoeff != 0)
00576 {
00577 f.serial(_Threshold);
00578 }
00579 <font class="keywordflow">if</font> (ver > 1)
00580 {
00581 f.serial(_IndependantSizes);
00582 <font class="keywordflow">if</font> (_IndependantSizes)
00583 {
00584 _SecondSize.serialSizeScheme(f);
00585 }
00586 }
00587 <font class="keywordflow">if</font> (f.isReading())
00588 {
00589 init();
00590 }
00591 }
00592
00593 } <font class="comment">// NL3D</font>
</pre></div>
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