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class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<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> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |