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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>NeL: NL3D::CPSFanLightHelper class Reference</title>
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<h1>NL3D::CPSFanLightHelper Class Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
====================================================================================
<p>
Well, we could have put a method template in <a class="el" href="a03194.html">CPSFanLight</a>, but some compilers want the definition of the methods in the header, and some compilers don't want friend with function template, so we use a static method template of a friend class instead, which gives us the same result :)
<p>
<p>
Definition at line <a class="el" href="a06235.html#l00068">68</a> of file <a class="el" href="a06235.html">ps_fan_light.cpp</a>.<table border=0 cellpadding=0 cellspacing=0>
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<tr><td colspan=2><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>template<class T, class U> void </td><td class="memItemRight" valign=bottom><a class="el" href="a03195.html#NL3D_1_1CPSFanLightHelpere0">drawFanLight</a> (T posIt, U timeIt, <a class="el" href="a03194.html">CPSFanLight</a> &f, <a class="el" href="a04558.html#a15">uint</a> <a class="el" href="a04223.html#a587">size</a>, <a class="el" href="a04558.html#a11">uint32</a> srcStep)</td></tr>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="NL3D_1_1CPSFanLightHelpere0" doxytag="NL3D::CPSFanLightHelper::drawFanLight" ></a><p>
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template<class T, class U> </td>
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<td class="md" nowrap valign="top"> void NL3D::CPSFanLightHelper::drawFanLight </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">T </td>
<td class="mdname" nowrap> <em>posIt</em>, </td>
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<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>U </td>
<td class="mdname" nowrap> <em>timeIt</em>, </td>
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<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap><a class="el" href="a03194.html">CPSFanLight</a> & </td>
<td class="mdname" nowrap> <em>f</em>, </td>
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<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap><a class="el" href="a04558.html#a15">uint</a> </td>
<td class="mdname" nowrap> <em>size</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap><a class="el" href="a04558.html#a11">uint32</a> </td>
<td class="mdname" nowrap> <em>srcStep</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [inline, static]</code></td>
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<p>
<p>
Definition at line <a class="el" href="a06235.html#l00072">72</a> of file <a class="el" href="a06235.html">ps_fan_light.cpp</a>.
<p>
References <a class="el" href="a06258.html#l00367">NL3D::CPSRotated2DParticle::_Angle2D</a>, <a class="el" href="a06258.html#l00368">NL3D::CPSRotated2DParticle::_Angle2DScheme</a>, <a class="el" href="a06258.html#l00228">NL3D::CPSColoredParticle::_ColorScheme</a>, <a class="el" href="a06258.html#l00844">NL3D::CPSMaterial::_Mat</a>, <a class="el" href="a06236.html#l00158">NL3D::CPSFanLight::_MoveIntensity</a>, <a class="el" href="a06236.html#l00156">NL3D::CPSFanLight::_NbFans</a>, <a class="el" href="a06247.html#l01026">NL3D::CPSLocatedBindable::_Owner</a>, <a class="el" href="a06258.html#l00289">NL3D::CPSSizedParticle::_ParticleSize</a>, <a class="el" href="a06236.html#l00157">NL3D::CPSFanLight::_PhaseSmoothness</a>, <a class="el" href="a06236.html#l00160">NL3D::CPSFanLight::_PhaseSpeed</a>, <a class="el" href="a06235.html#l00047">NL3D::CPSFanLight::_RandomPhaseTab</a>, <a class="el" href="a06235.html#l00048">NL3D::CPSFanLight::_RandomPhaseTabInitialized</a>, <a class="el" href="a06258.html#l00290">NL3D::CPSSizedParticle::_SizeScheme</a>, <a class="el" href="a02434.html#NL3D_1_1IDrivera2">NL3D::IDriver::activeVertexBuffer()</a>, <a class="el" href="a06249.html#l00039">CHECK_VERTEX_BUFFER</a>, <a class="el" href="a06247.html#l00931">NL3D::CPSLocatedBindable::computeI()</a>, <a class="el" href="a06247.html#l00940">NL3D::CPSLocatedBindable::computeK()</a>, <a class="el" href="a06235.html#l00057">NL3D::FanLightBufSize</a>, <a class="el" href="a06710.html#l00465">NL3D::CVertexBuffer::getColorPointer()</a>, <a class="el" href="a06247.html#l00890">NL3D::CPSLocatedBindable::getDriver()</a>, <a class="el" href="a06235.html#l00536">NL3D::CPSFanLight::getNumFanlightsInVB()</a>, <a class="el" href="a06235.html#l00459">NL3D::CPSFanLight::getVBnIB()</a>, <a class="el" href="a06710.html#l00438">NL3D::CVertexBuffer::getVertexCoordPointer()</a>, <a class="el" href="a06711.html#l00473">NL3D::CVertexBuffer::getVertexSize()</a>, <a class="el" href="a06246.html#l00500">NL3D::CPSLocated::incrementNbDrawnParticles()</a>, <a class="el" href="a03136.html#NL3D_1_1CPSAttribMakerz714_2">NL3D::CPSAttribMaker< float >::make()</a>, <a class="el" href="a03136.html#NL3D_1_1CPSAttribMakerz714_2">NL3D::CPSAttribMaker< CRGBA >::make()</a>, <a class="el" href="a05484.html#l00038">min</a>, <a class="el" href="a05622.html#l00290">nlassert</a>, <a class="el" href="a06152.html#l00060">PARTICLES_CHECK_MEM</a>, <a class="el" href="a02434.html#NL3D_1_1IDrivera56">NL3D::IDriver::renderTriangles()</a>, <a class="el" href="a06246.html#l02142">NL3D::CPSLocatedBindable::setupDriverModelMatrix()</a>, <a class="el" href="a05981.html#l00099">sint32</a>, <a class="el" href="a05646.html#l00645">size</a>, <a class="el" href="a05646.html#l00244">stride</a>, <a class="el" href="a06236.html#l00153">NL3D::CPSFanLight::TIndexBuffer</a>, <a class="el" href="a05981.html#l00105">uint</a>, <a class="el" href="a05981.html#l00100">uint32</a>, and <a class="el" href="a05981.html#l00096">uint8</a>.
<p>
<div class="fragment"><pre>00073 {
00074 <a class="code" href="a04729.html#a0">PARTICLES_CHECK_MEM</a>;
00075 <a class="code" href="a04199.html#a6">nlassert</a>(f._RandomPhaseTabInitialized);
00076 <span class="comment">//</span>
00077 f.setupDriverModelMatrix();
00078 <span class="keyword">const</span> CVector I = f.computeI();
00079 <span class="keyword">const</span> CVector K = f.computeK();
00080 <span class="comment">// </span>
00081 CVertexBuffer *vb;
00082 CPSFanLight::TIndexBuffer *ib;
00083 <span class="comment">// get (and build if necessary) the vb and the ib</span>
00084 f.getVBnIB(vb, ib);
00085 IDriver *driver = f.getDriver();
00086 driver->activeVertexBuffer(*vb);
00087 <span class="keyword">const</span> <a class="code" href="a04558.html#a15">uint</a> maxNumFanLightToDealWith = <a class="code" href="a04061.html#a0">std::min</a>(FanLightBufSize, f.getNumFanlightsInVB());
00088 <a class="code" href="a04558.html#a7">uint8</a> *randomPhaseTab = &f._RandomPhaseTab[f._PhaseSmoothness][0];
00089 f._Owner->incrementNbDrawnParticles(size); <span class="comment">// for benchmark purpose </span>
00090 <span class="keywordtype">float</span> pSizes[<a class="code" href="a05363.html#a242">FanLightBufSize</a>];
00091 <span class="keywordtype">float</span> pAngles[<a class="code" href="a05363.html#a242">FanLightBufSize</a>];
00092 T endPosIt;
00093
00094 <a class="code" href="a04558.html#a10">sint32</a> k; <span class="comment">// helps to count the fans</span>
00095
00096
00097 <span class="comment">// if so, we need to deal process separatly group of particles </span>
00098 <span class="keyword">const</span> <a class="code" href="a04558.html#a11">uint32</a> <a class="code" href="a04223.html#a582">stride</a> = vb->getVertexSize();
00099
00100 <span class="keywordtype">float</span> currentAngle;
00101 <span class="keyword">const</span> <span class="keywordtype">float</span> angleStep = 256.0f / f._NbFans;
00102
00103
00104 <span class="keywordtype">float</span> *currentSizePt; <span class="comment">// it points either the particle constant size, or a size in a table</span>
00105 <span class="keywordtype">float</span> *currentAnglePt; <span class="comment">// it points either the particle constant angle, or an angle in a table</span>
00106
00107
00108 <span class="keyword">const</span> <a class="code" href="a04558.html#a11">uint32</a> currentSizePtIncrement = f._SizeScheme ? 1 : 0; <span class="comment">// increment to get the next size for the size pointer. It is 0 if the size is constant</span>
00109 <span class="keyword">const</span> <a class="code" href="a04558.html#a11">uint32</a> currentAnglePtIncrement = f._Angle2DScheme ? 1 : 0; <span class="comment">// increment to get the next angle for the angle pointer. It is 0 if the size is constant</span>
00110
00111
00112 <a class="code" href="a04558.html#a15">uint</a> leftToDo = <a class="code" href="a04223.html#a587">size</a>;
00113 <span class="keywordflow">do</span>
00114 {
00115 <a class="code" href="a04558.html#a7">uint8</a> *ptVect = (<a class="code" href="a04558.html#a7">uint8</a> *) vb->getVertexCoordPointer();
00116 <a class="code" href="a04558.html#a15">uint</a> toProcess = <a class="code" href="a04061.html#a0">std::min</a>(leftToDo, maxNumFanLightToDealWith);
00117 <span class="comment">// compute individual colors if needed</span>
00118 <span class="keywordflow">if</span> (f._ColorScheme)
00119 {
00120 <span class="comment">// we change the color at each fan light center</span>
00121 f._ColorScheme->make(f._Owner, size - leftToDo, vb->getColorPointer(), vb->getVertexSize() * (f._NbFans + 2), toProcess, <span class="keyword">false</span>, srcStep);
00122 }
00123 <span class="keywordflow">if</span> (f._SizeScheme)
00124 {
00125 currentSizePt = (<span class="keywordtype">float</span> *) (f._SizeScheme->make(f._Owner, size - leftToDo, pSizes, <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>), toProcess, <span class="keyword">true</span>, srcStep));
00126 currentSizePt = pSizes;
00127 }
00128 <span class="keywordflow">else</span>
00129 {
00130 currentSizePt = &f._ParticleSize;
00131 }
00132 <span class="keywordflow">if</span> (f._Angle2DScheme)
00133 {
00134 currentAnglePt = (<span class="keywordtype">float</span> *) (f._Angle2DScheme->make(f._Owner, size - leftToDo, pAngles, <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>), toProcess, <span class="keyword">true</span>, srcStep));
00135 }
00136 <span class="keywordflow">else</span>
00137 {
00138 currentAnglePt = &f._Angle2D;
00139 }
00140 <span class="comment">// </span>
00141 <span class="keywordtype">float</span> fSize, firstSize, sizeStepBase=0.0, sizeStep;
00142 <span class="keywordflow">if</span> (f._PhaseSmoothness)
00143 {
00144 sizeStepBase = 1.f / f._PhaseSmoothness;
00145 }
00146 endPosIt = posIt + toProcess;
00147 <span class="keywordflow">for</span> (;posIt != endPosIt; ++posIt, ++timeIt)
00148 {
00149
00150 <a class="code" href="a04826.html#a0">CHECK_VERTEX_BUFFER</a>(*vb, ptVect);
00151 *(CVector *) ptVect = *posIt;
00152 <span class="comment">// the start angle</span>
00153 currentAngle = *currentAnglePt;
00154 <span class="keyword">const</span> <a class="code" href="a04558.html#a7">uint8</a> phaseAdd = (<a class="code" href="a04558.html#a7">uint8</a>) (f._PhaseSpeed * (*timeIt));
00155 ptVect += <a class="code" href="a04223.html#a582">stride</a>;
00156 <span class="keyword">const</span> <span class="keywordtype">float</span> fanSize = *currentSizePt * 0.5f;
00157 <span class="keyword">const</span> <span class="keywordtype">float</span> moveIntensity = f._MoveIntensity * fanSize;
00158 <span class="comment">// compute radius & vect for first fan</span>
00159 firstSize = fanSize + (moveIntensity * CPSUtil::getCos(randomPhaseTab[0] + phaseAdd));
00160 *(CVector *) ptVect = (*posIt) + I * firstSize * (CPSUtil::getCos((<a class="code" href="a04558.html#a10">sint32</a>) currentAngle))
00161 + K * firstSize * (CPSUtil::getSin((<a class="code" href="a04558.html#a10">sint32</a>) currentAngle));
00162 currentAngle += angleStep;
00163 ptVect += <a class="code" href="a04223.html#a582">stride</a>;
00164 fSize = firstSize;
00165 <span class="comment">// computes other fans</span>
00166 <span class="keyword">const</span> <a class="code" href="a04558.html#a10">sint32</a> upperBound = (<a class="code" href="a04558.html#a10">sint32</a>) (f._NbFans - f._PhaseSmoothness - 1);
00167 <span class="keywordflow">for</span> (k = 1; k <= upperBound; ++k)
00168 {
00169 fSize = fanSize + (moveIntensity * CPSUtil::getCos(randomPhaseTab[k] + phaseAdd));
00170 *(CVector *) ptVect = (*posIt) + I * fSize * (CPSUtil::getCos((<a class="code" href="a04558.html#a10">sint32</a>) currentAngle))
00171 + K * fSize * (CPSUtil::getSin((<a class="code" href="a04558.html#a10">sint32</a>) currentAngle));
00172 currentAngle += angleStep;
00173 ptVect += <a class="code" href="a04223.html#a582">stride</a>;
00174 }
00175
00176 <span class="comment">// interpolate radius, so that the fanlight loops correctly</span>
00177 sizeStep = sizeStepBase * (firstSize - fSize);
00178 <span class="keywordflow">for</span> (; k <= (<a class="code" href="a04558.html#a10">sint32</a>) (f._NbFans - 1); ++k)
00179 {
00180 *(CVector *) ptVect = (*posIt) + I * fSize * (CPSUtil::getCos((<a class="code" href="a04558.html#a10">sint32</a>) currentAngle))
00181 + K * fSize * (CPSUtil::getSin((<a class="code" href="a04558.html#a10">sint32</a>) currentAngle));
00182 currentAngle += angleStep;
00183 ptVect += <a class="code" href="a04223.html#a582">stride</a>;
00184 fSize += sizeStep;
00185 }
00186 <span class="comment">// last fan</span>
00187 *(CVector *) ptVect = (*posIt) + I * firstSize * (CPSUtil::getCos((<a class="code" href="a04558.html#a10">sint32</a>) *currentAnglePt))
00188 + K * firstSize * (CPSUtil::getSin((<a class="code" href="a04558.html#a10">sint32</a>) *currentAnglePt));
00189 ptVect += <a class="code" href="a04223.html#a582">stride</a>;
00190 currentSizePt += currentSizePtIncrement;
00191 currentAnglePt += currentAnglePtIncrement;
00192 }
00193 driver->renderTriangles(f._Mat, &((*ib)[0]), toProcess * f._NbFans);
00194 leftToDo -= toProcess;
00195 }
00196 <span class="keywordflow">while</span> (leftToDo != 0);
00197 <a class="code" href="a04729.html#a0">PARTICLES_CHECK_MEM</a>;
00198 }
</pre></div> </td>
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="a06235.html">ps_fan_light.cpp</a></ul>
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