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<hr><h1>light_influence_interpolator.cpp</h1><a href="light__influence__interpolator_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="light__influence__interpolator_8h.html">3d/light_influence_interpolator.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="point__light__named_8h.html">3d/point_light_named.h</a>"</font>
00031
00032
00033 <font class="keyword">namespace </font>NL3D
00034 {
00035
00036
00037 <font class="comment">// ***************************************************************************</font>
<a name="l00038"></a><a class="code" href="classNL3D_1_1CLightInfluenceInterpolator.html#a1">00038</a> <font class="keywordtype">void</font> CLightInfluenceInterpolator::interpolate(std::vector<CPointLightInfluence> &pointLightList, <font class="keywordtype">float</font> subX, <font class="keywordtype">float</font> subY)
00039 {
00040 <a class="code" href="types__nl_8h.html#a14">uint</a> crn;
00041 <font class="comment">// UnRolled loops.</font>
00042 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CLightInfluenceInterpolator.html#s1s0">NumLightPerCorner</a>==2);
00043
00044 <font class="comment">// Reset index for each light.</font>
00045 <font class="keywordflow">for</font>(crn= 0; crn<4; crn++)
00046 {
00047 CCorner &corner= <a class="code" href="classNL3D_1_1CLightInfluenceInterpolator.html#m0">Corners</a>[crn];
00048 <font class="comment">// UnRolled.</font>
00049 <font class="keywordflow">if</font>(corner.Lights[0])
00050 corner.<a class="code" href="structNL3D_1_1CLightInfluenceInterpolator_1_1CCorner.html#m0">Lights</a>[0]->_IdInInfluenceList= -1;
00051 <font class="keywordflow">if</font>(corner.Lights[1])
00052 corner.Lights[1]->_IdInInfluenceList= -1;
00053 }
00054
00055 <font class="comment">// Compute biLinear influence on each corner</font>
00056 <a class="code" href="classNL3D_1_1CLightInfluenceInterpolator.html#m0">Corners</a>[0].<a class="code" href="structNL3D_1_1CLightInfluenceInterpolator_1_1CCorner.html#o0">Influence</a>= (1-subX) * (1-subY);
00057 <a class="code" href="classNL3D_1_1CLightInfluenceInterpolator.html#m0">Corners</a>[1].<a class="code" href="structNL3D_1_1CLightInfluenceInterpolator_1_1CCorner.html#o0">Influence</a>= subX * (1-subY);
00058 <a class="code" href="classNL3D_1_1CLightInfluenceInterpolator.html#m0">Corners</a>[2].<a class="code" href="structNL3D_1_1CLightInfluenceInterpolator_1_1CCorner.html#o0">Influence</a>= (1-subX) * subY;
00059 <a class="code" href="classNL3D_1_1CLightInfluenceInterpolator.html#m0">Corners</a>[3].<a class="code" href="structNL3D_1_1CLightInfluenceInterpolator_1_1CCorner.html#o0">Influence</a>= subX * subY;
00060
00061 <font class="comment">// For each light of each corner</font>
00062 <font class="keywordflow">for</font>(crn= 0; crn<4; crn++)
00063 {
00064 CCorner &corner= <a class="code" href="classNL3D_1_1CLightInfluenceInterpolator.html#m0">Corners</a>[crn];
00065 <font class="comment">// UnRolled.</font>
00066 <font class="comment">// light 0.</font>
00067 <font class="keywordflow">if</font>(corner.Lights[0])
00068 {
00069 <font class="keywordflow">if</font>(corner.Lights[0]->_IdInInfluenceList==-1)
00070 {
00071 <font class="comment">// append a PointLightInfluence</font>
00072 pointLightList.push_back(CPointLightInfluence());
00073 <a class="code" href="types__nl_8h.html#a13">sint</a> <a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>= pointLightList.size()-1;
00074 <font class="comment">// setup the PointLightInfluence</font>
00075 corner.Lights[0]->_IdInInfluenceList= <a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>;
00076 pointLightList[<a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>].PointLight= corner.Lights[0];
00077 pointLightList[<a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>].Influence= corner.Influence;
00078 }
00079 <font class="keywordflow">else</font>
00080 {
00081 <font class="comment">// get the PointLightInfluence</font>
00082 <a class="code" href="types__nl_8h.html#a13">sint</a> <a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>= corner.Lights[0]->_IdInInfluenceList;
00083 <font class="comment">// increment the influence of the PointLightInfluence</font>
00084 pointLightList[<a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>].Influence+= corner.Influence;
00085 }
00086 }
00087 <font class="comment">// light 1.</font>
00088 <font class="keywordflow">if</font>(corner.Lights[1])
00089 {
00090 <font class="keywordflow">if</font>(corner.Lights[1]->_IdInInfluenceList==-1)
00091 {
00092 <font class="comment">// append a PointLightInfluence</font>
00093 pointLightList.push_back(CPointLightInfluence());
00094 <a class="code" href="types__nl_8h.html#a13">sint</a> <a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>= pointLightList.size()-1;
00095 <font class="comment">// setup the PointLightInfluence</font>
00096 corner.Lights[1]->_IdInInfluenceList= <a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>;
00097 pointLightList[<a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>].PointLight= corner.Lights[1];
00098 pointLightList[<a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>].Influence= corner.Influence;
00099 }
00100 <font class="keywordflow">else</font>
00101 {
00102 <font class="comment">// get the PointLightInfluence</font>
00103 <a class="code" href="types__nl_8h.html#a13">sint</a> <a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>= corner.Lights[1]->_IdInInfluenceList;
00104 <font class="comment">// increment the influence of the PointLightInfluence</font>
00105 pointLightList[<a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>].Influence+= corner.Influence;
00106 }
00107 }
00108 }
00109 }
00110
00111
00112
00113 } <font class="comment">// NL3D</font>
</pre></div>
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