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<a class="qindex" href="index.html">Main Page</a> &nbsp; <a class="qindex" href="namespaces.html">Namespace List</a> &nbsp; <a class="qindex" href="hierarchy.html">Class Hierarchy</a> &nbsp; <a class="qindex" href="classes.html">Alphabetical List</a> &nbsp; <a class="qindex" href="annotated.html">Compound List</a> &nbsp; <a class="qindex" href="files.html">File List</a> &nbsp; <a class="qindex" href="namespacemembers.html">Namespace Members</a> &nbsp; <a class="qindex" href="functions.html">Compound Members</a> &nbsp; <a class="qindex" href="globals.html">File Members</a> &nbsp; <a class="qindex" href="pages.html">Related Pages</a> &nbsp; <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/cgi-bin/nel-search.cgi">Search</a> &nbsp; </center>
<hr><h1>water_model.cpp</h1><a href="water__model_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2000, 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="vector__2d_8h.html">nel/misc/vector_2d.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="vector__h_8h.html">nel/misc/vector_h.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="hierarchical__timer_8h.html">nel/misc/hierarchical_timer.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="animation__time_8h.html">nel/3d/animation_time.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="water__model_8h.html">3d/water_model.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="water__shape_8h.html">3d/water_shape.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="water__pool__manager_8h.html">3d/water_pool_manager.h</a>"</font>
00035 <font class="preprocessor">#include "<a class="code" href="water__height__map_8h.html">3d/water_height_map.h</a>"</font>
00036 <font class="preprocessor">#include "<a class="code" href="dru_8h.html">3d/dru.h</a>"</font>
00037 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font>
00038 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00039 <font class="preprocessor">#include "<a class="code" href="render__trav_8h.html">3d/render_trav.h</a>"</font>
00040 <font class="preprocessor">#include "<a class="code" href="anim__detail__trav_8h.html">3d/anim_detail_trav.h</a>"</font>
00041 
00042 
00043 
00044 
00045 <font class="keyword">namespace </font>NL3D {
00046 
00047 
00048 <font class="comment">//=======================================================================</font>
00049 
<a name="l00050"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a0">00050</a> CWaterModel::CWaterModel() : _Scene(NULL)
00051 {
00052         <a class="code" href="classNL3D_1_1CTransform.html#a1">setOpacity</a>(<font class="keyword">false</font>);
00053         <a class="code" href="classNL3D_1_1CTransform.html#a0">setTransparency</a>(<font class="keyword">true</font>);
00054         <a class="code" href="classNL3D_1_1CTransform.html#a4">setOrderingLayer</a>(1);
00055 }
00056 
00057 <font class="comment">//=======================================================================</font>
00058 
<a name="l00059"></a><a class="code" href="classNL3D_1_1CWaterModel.html#d0">00059</a> <font class="keywordtype">void</font> CWaterModel::registerBasic()
00060 {
00061         CMOT::registerModel(<a class="code" href="namespaceNL3D.html#a310">WaterModelClassId</a>, <a class="code" href="namespaceNL3D.html#a277">TransformShapeId</a>, CWaterModel::creator); 
00062         CMOT::registerObs(<a class="code" href="namespaceNL3D.html#a232">RenderTravId</a>, <a class="code" href="namespaceNL3D.html#a310">WaterModelClassId</a>, CWaterRenderObs::creator);   
00063 }
00064 
00065 
00066 <font class="comment">//=======================================================================</font>
00067 
<a name="l00068"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a1">00068</a> ITrack* CWaterModel::getDefaultTrack (uint valueId)
00069 {
00070         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00071         <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws = NLMISC::safe_cast&lt;CWaterShape *&gt;((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00072         <font class="keywordflow">switch</font> (valueId)
00073         {
00074                 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z872_0s5">PosValue</a>:                  <font class="keywordflow">return</font> ws-&gt;getDefaultPos(); <font class="keywordflow">break</font>;              
00075                 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z872_0s8">ScaleValue</a>:                <font class="keywordflow">return</font> ws-&gt;getDefaultScale(); <font class="keywordflow">break</font>;
00076                 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z872_0s7">RotQuatValue</a>:              <font class="keywordflow">return</font> ws-&gt;getDefaultRotQuat(); <font class="keywordflow">break</font>;
00077                 <font class="keywordflow">default</font>: <font class="comment">// delegate to parent</font>
00078                         <font class="keywordflow">return</font> CTransformShape::getDefaultTrack(valueId);
00079                 <font class="keywordflow">break</font>;
00080         }
00081 }
00082 
00083 <font class="comment">//=======================================================================</font>
00084 
<a name="l00085"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a2">00085</a> uint32  CWaterModel::getWaterHeightMapID()<font class="keyword"> const</font>
00086 <font class="keyword"></font>{
00087         <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws = NLMISC::safe_cast&lt;CWaterShape *&gt;((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00088         <font class="keywordflow">return</font> ws-&gt;_WaterPoolID;
00089 }
00090 
00091 <font class="comment">//=======================================================================</font>
00092 
<a name="l00093"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a3">00093</a> <font class="keywordtype">float</font>   CWaterModel::getHeightFactor()<font class="keyword"> const</font>
00094 <font class="keyword"></font>{
00095         <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws = NLMISC::safe_cast&lt;CWaterShape *&gt;((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00096         <font class="keywordflow">return</font> ws-&gt;_WaveHeightFactor;
00097 }
00098 
00099 
00100 <font class="comment">//=======================================================================</font>
00101 
<a name="l00102"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a4">00102</a> <font class="keywordtype">float</font>   CWaterModel::getHeight(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html">NLMISC::CVector2f</a> &amp;pos)
00103 {
00104         <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws          = NLMISC::safe_cast&lt;CWaterShape *&gt;((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);  
00105         CWaterHeightMap &amp;whm = <a class="code" href="namespaceNL3D.html#a480">GetWaterPoolManager</a>().getPoolByID(ws-&gt;_WaterPoolID);
00106         <font class="keyword">const</font> <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>   = whm.getHeight(pos);
00107         <font class="keywordflow">return</font> <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> * ws-&gt;_WaveHeightFactor + this-&gt;<a class="code" href="classNL3D_1_1ITransformable.html#z870_7">getPos</a>().z;
00108 }
00109 
00110 <font class="comment">//=======================================================================</font>
00111 
<a name="l00112"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a5">00112</a> <font class="keywordtype">float</font>   CWaterModel::getAttenuatedHeight(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html">NLMISC::CVector2f</a> &amp;pos, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;viewer)
00113 {       
00114         <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws          = NLMISC::safe_cast&lt;CWaterShape *&gt;((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);                  
00115         CWaterHeightMap &amp;whm = <a class="code" href="namespaceNL3D.html#a480">GetWaterPoolManager</a>().getPoolByID(ws-&gt;_WaterPoolID);
00116         <font class="keyword">const</font> <font class="keywordtype">float</font> maxDist = whm.getUnitSize() * (whm.getSize() &gt;&gt; 1); 
00117         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> planePos(pos.<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>, pos.<a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>, this-&gt;getPos().z);
00118         <font class="keyword">const</font> <font class="keywordtype">float</font> userDist = (planePos - viewer).norm();
00119 
00120         <font class="keywordflow">if</font> (userDist &gt; maxDist)
00121         {
00122                 <font class="keywordflow">return</font> this-&gt;<a class="code" href="classNL3D_1_1ITransformable.html#z870_7">getPos</a>().z;
00123         }
00124         <font class="keywordflow">else</font>
00125         {
00126                 <font class="keyword">const</font> <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>   = whm.getHeight(pos);
00127                 <font class="keywordflow">return</font> ws-&gt;_WaveHeightFactor * <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> * (1.f - userDist / maxDist) + this-&gt;<a class="code" href="classNL3D_1_1ITransformable.html#z870_7">getPos</a>().z;
00128         }
00129 }
00130 
00131 
00132 <font class="comment">//=======================================================================</font>
00133 
00134 <font class="comment">// perform a bilinear on 4 values</font>
00135 <font class="comment">//   0---1</font>
00136 <font class="comment">//   |   |</font>
00137 <font class="comment">//   3---2</font>
00138 <font class="keyword">static</font> <font class="keywordtype">float</font> <font class="keyword">inline</font> <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(<font class="keywordtype">float</font> v0, <font class="keywordtype">float</font> v1, <font class="keywordtype">float</font> v2, <font class="keywordtype">float</font> v3, <font class="keywordtype">float</font> u, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)
00139 {
00140         <font class="keywordtype">float</font> g = <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> * v3 + (1.f - <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) * v0;
00141         <font class="keywordtype">float</font> h = <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> * v2 + (1.f - <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) * v1;
00142         <font class="keywordflow">return</font> u * h + (1.f - u) * g;
00143 }
00144 
00145 
00146 
00147 <font class="comment">//=======================================================================</font>
00148 
00150 <font class="keyword">static</font> <font class="keywordtype">void</font> <font class="keyword">inline</font> <a class="code" href="namespaceNL3D.html#a476">FillWaterVB</a>(uint8 *&amp;vbPointer, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a366">z</a>, <font class="keywordtype">float</font> nx, <font class="keywordtype">float</font> ny)
00151 {
00152         * (<font class="keywordtype">float</font> *) vbPointer = <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>;
00153         ((<font class="keywordtype">float</font> *) vbPointer)[1] = <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>;
00154         ((<font class="keywordtype">float</font> *) vbPointer)[2] = <a class="code" href="driver__opengl__extension__def_8h.html#a366">z</a>;
00155         *((<font class="keywordtype">float</font> *) (vbPointer + 3 * <font class="keyword">sizeof</font>(float))) = nx;
00156         *((<font class="keywordtype">float</font> *) (vbPointer + 4 * <font class="keyword">sizeof</font>(float))) = ny;
00157         vbPointer += 5 * <font class="keyword">sizeof</font>(float);
00158 }
00159 
00160 <font class="comment">//***************************************************************************************************************</font>
00161 
00162 
00164 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00165 <font class="preprocessor"></font>        __forceinline
00166 <font class="preprocessor">#endif</font>
00167 <font class="preprocessor"></font><font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a477">SetupWaterVertex</a>(  sint  qLeft,
00168                                                            sint  qRight,
00169                                                            sint  qUp,
00170                                                            sint  qDown,
00171                                                            sint  qSubLeft,
00172                                                            sint  qSubDown,
00173                                                            <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;inter,                                                           
00174                                                            <font class="keywordtype">float</font> invWaterRatio,                                                    
00175                                                            sint  doubleWaterHeightMapSize,
00176                                                            CWaterHeightMap &amp;whm,
00177                                                            uint8 *&amp;vbPointer,
00178                                                            <font class="keywordtype">float</font> offsetX,
00179                                                            <font class="keywordtype">float</font> offsetY
00180                                                            )
00181 {
00182         <font class="keyword">const</font> <font class="keywordtype">float</font> wXf = invWaterRatio * (inter.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + offsetX);
00183         <font class="keyword">const</font> <font class="keywordtype">float</font> wYf = invWaterRatio * (inter.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + offsetY);
00184 
00185         sint wx = (sint) floorf(wXf);
00186         sint wy = (sint) floorf(wYf);
00187 
00188         
00189 
00190         <font class="keywordflow">if</font> (!
00191                  (wx &gt;= qLeft &amp;&amp; wx &lt; qRight &amp;&amp; wy &lt; qUp &amp;&amp;  wy &gt;= qDown)
00192            )
00193         {       
00194                 <font class="comment">// no perturbation is visible</font>
00195                 <a class="code" href="namespaceNL3D.html#a476">FillWaterVB</a>(vbPointer, inter.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, inter.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, 0, 0, 0);              
00196         }
00197         <font class="keywordflow">else</font>
00198         {
00199                 
00200 
00201                 <font class="comment">// filter height and gradient at the given point</font>
00202                 <font class="keyword">const</font> sint <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> = doubleWaterHeightMapSize;
00203 
00204                 
00205                 <font class="keyword">const</font> uint xm     = (uint) (wx - qSubLeft);
00206                 <font class="keyword">const</font> uint ym     = (uint) (wy - qSubDown);
00207                 <font class="keyword">const</font> sint <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> = xm + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> * ym;
00208                 <font class="keyword">const</font> <font class="keywordtype">float</font>                       *ptWater     = whm.getPointer()         + <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>;
00209 
00210         <font class="comment">/*      float epsilon = 10E-5f;</font>
00211 <font class="comment">                if (ptWater[0] &gt; epsilon                         || ptWater[0] &lt; epsilon </font>
00212 <font class="comment">                        || ptWater[1] &gt; epsilon                  || ptWater[1] &lt; epsilon </font>
00213 <font class="comment">                        || ptWater[stride] &gt; epsilon     || ptWater[stride] &lt; epsilon</font>
00214 <font class="comment">                        || ptWater[stride + 1] &gt; epsilon || ptWater[stride + 1] &lt; epsilon</font>
00215 <font class="comment">                        )</font>
00216 <font class="comment">                {*/</font>
00217 
00218                         <font class="keywordtype">float</font> deltaU = wXf - wx;
00219                         <font class="keywordtype">float</font> deltaV = wYf - wy;
00220                         <a class="code" href="debug_8h.html#a6">nlassert</a>(deltaU &gt;= 0.f &amp;&amp; deltaU &lt;= 1.f  &amp;&amp; deltaV &gt;= 0.f &amp;&amp; deltaV &lt;= 1.f);
00221                         <font class="keyword">const</font> <font class="keywordtype">float</font>                       *ptWaterPrev = whm.getPrevPointer()  + <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>;
00222 
00223 
00224 
00225                         <font class="keywordtype">float</font> g0x, g1x, g2x, g3x;  <font class="comment">// x gradient for current </font>
00226                         <font class="keywordtype">float</font> g0xp, g1xp, g2xp, g3xp;
00227 
00228                         <font class="keywordtype">float</font> gradCurrX, gradCurrY;
00229 
00230                         <font class="keywordtype">float</font> g0y, g1y, g2y, g3y; <font class="comment">// y gradient for previous map</font>
00231                         <font class="keywordtype">float</font> g0yp, g1yp, g2yp, g3yp;
00232 
00233                         <font class="keywordtype">float</font> gradPrevX, gradPrevY;
00234 
00236 
00237                         g0x = ptWater[ 1] - ptWater[ - 1];
00238                         g1x = ptWater[ 2] - ptWater[ 0 ];
00239                         g2x = ptWater[ 2 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWater[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00240                         g3x = ptWater[ 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWater[ - 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00241 
00242                         gradCurrX = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(g0x, g1x, g2x, g3x, deltaU, deltaV);
00243 
00244 
00245                         g0y = ptWater[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWater[ - <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00246                         g1y = ptWater[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + 1] - ptWater[ - <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + 1];
00247                         g2y = ptWater[ (<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> &lt;&lt; 1) + 1] - ptWater[ 1];
00248                         g3y = ptWater[ (<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> &lt;&lt; 1)] - ptWater[0];
00249 
00250                         gradCurrY = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(g0y, g1y, g2y, g3y, deltaU, deltaV);
00251 
00253 
00254                         g0xp = ptWaterPrev[ 1] - ptWaterPrev[ - 1];
00255                         g1xp = ptWaterPrev[ 2] - ptWaterPrev[ 0  ];
00256                         g2xp = ptWaterPrev[ 2 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWaterPrev[ + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00257                         g3xp = ptWaterPrev[ 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWaterPrev[ - 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00258 
00259                         gradPrevX = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(g0xp, g1xp, g2xp, g3xp, deltaU, deltaV);
00260 
00261 
00262                         g0yp = ptWaterPrev[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWaterPrev[ - <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00263                         g1yp = ptWaterPrev[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + 1] - ptWaterPrev[ - <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + 1];
00264                         g2yp = ptWaterPrev[ (<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> &lt;&lt; 1) + 1] - ptWaterPrev[ 1 ];
00265                         g3yp = ptWaterPrev[ (<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> &lt;&lt; 1)] - ptWaterPrev[ 0 ];
00266 
00267                         gradPrevY = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(g0yp, g1yp, g2yp, g3yp, deltaU, deltaV);
00268 
00269 
00271                         <font class="keywordtype">float</font> h = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(ptWater[ 0 ], ptWater[ + 1], ptWater[ 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>], ptWater[<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>], deltaU, deltaV);
00272 
00274                         <font class="keywordtype">float</font> hPrev = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(ptWaterPrev[ 0 ], ptWaterPrev[ 1], ptWaterPrev[ 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>], ptWaterPrev[<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>], deltaU, deltaV);
00275                         
00276 
00277                         <font class="keywordtype">float</font> timeRatio = whm.getBufferRatio();
00278 
00279 
00280                         <a class="code" href="namespaceNL3D.html#a476">FillWaterVB</a>(vbPointer, inter.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, inter.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, timeRatio * h + (1.f - timeRatio) * hPrev,
00281                                                 4.5f * (timeRatio * gradCurrX + (1.f - timeRatio) * gradPrevX),
00282                                                 4.5f * (timeRatio * gradCurrY + (1.f - timeRatio) * gradPrevY)
00283                                            );
00284 
00285 
00286 
00287                         <font class="comment">//NLMISC::CVector2f *ptGrad  = whm.getGradPointer() + offset;</font>
00288 
00289 
00290 
00291 
00292 
00293                 <font class="comment">/*      float dh1 = deltaV * ptWater[stride] + (1.f - deltaV) *  ptWater[0];</font>
00294 <font class="comment">                        float dh2 = deltaV * ptWater[stride + 1] + (1.f - deltaV) *  ptWater[1];</font>
00295 <font class="comment">                        float h = deltaU * dh2 + (1.f - deltaU ) * dh1;</font>
00296 <font class="comment"></font>
00297 <font class="comment">                        </font>
00298 <font class="comment">                        float gR = deltaV * ptGrad[stride + 1].x + (1.f - deltaV) * ptGrad[1].x;</font>
00299 <font class="comment">                        float gL = deltaV * ptGrad[stride].x + (1.f - deltaV) * ptGrad[0].x;</font>
00300 <font class="comment"></font>
00301 <font class="comment">                        float grU = 4.5f * (deltaU *  gR + (1.f - deltaU) * gL);</font>
00302 <font class="comment"></font>
00303 <font class="comment">                        gR = deltaV * ptGrad[stride + 1].y + (1.f - deltaV) * ptGrad[1].y;</font>
00304 <font class="comment">                        gL = deltaV * ptGrad[stride].y + (1.f - deltaV) * ptGrad[0].y;</font>
00305 <font class="comment"></font>
00306 <font class="comment">                        float grV = 4.5f * (deltaU *  gR + (1.f - deltaU) * gL);</font>
00307 <font class="comment"></font>
00308 <font class="comment">                        vb.setValueFloat3Ex (Water_VB_POS, vbIndex, inter.x, inter.y, h);</font>
00309 <font class="comment">                        vb.setValueFloat2Ex (Water_VB_DX, vbIndex, grU, grV);</font>
00310 <font class="comment">                        */</font>
00311                 <font class="comment">/*}</font>
00312 <font class="comment">                else</font>
00313 <font class="comment">                {</font>
00314 <font class="comment">                        // no perturbation is visible</font>
00315 <font class="comment">                        FillWaterVB(vbPointer, inter.x, inter.y, 0, 0, 0);              </font>
00316 <font class="comment">                }*/</font>
00317         }
00318 }
00319 
00320 <font class="comment">//*********************************************************</font>
00321 <font class="comment">// compute a rotation matrix from the K and the up vector</font>
00322 <font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a478">ComputeUpMatrix</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;J, <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &amp;dest, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &amp;defaultMat)
00323 {
00324         <font class="comment">// if the J vector is oriented toward K, we must use another vector to compute the matrix</font>
00325         <font class="keyword">const</font> <font class="keywordtype">float</font> JdotK = J.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>;
00326         <font class="keywordflow">if</font> ( (1.0f - fabsf(J.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)) &lt; 10E-6)
00327         {       
00328                 dest.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_1">setRot</a>(defaultMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_0">getRot</a>());               
00329         }
00330         <font class="keywordflow">else</font>
00331         {
00332                 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> up        = (<a class="code" href="classNLMISC_1_1CVector.html#p3">NLMISC::CVector::K</a> - JdotK * J).normed();
00333                 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> right = J ^ up;
00334                 dest.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_1">setRot</a>(right, J, up);
00335         }
00336 }
00337 
00338 <font class="comment">//*************************************************************</font>
00339 <font class="comment">// draw a 2d polygon after a transformation</font>
00340 <font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a479">DrawPoly2D</a>(CVertexBuffer &amp;vb, IDriver *drv, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &amp;mat, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CPolygon.html">NLMISC::CPolygon</a> &amp;p)
00341 {
00342         uint k;
00343 
00344         <font class="keywordflow">for</font> (k = 0; k &lt; p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size(); ++k)
00345         {
00346                 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> tPos = mat * <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>[k].x, p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>[k].y, 0);
00347                 vb.setValueFloat3Ex (<a class="code" href="namespaceNL3D.html#a308">WATER_VB_POS</a>, k, tPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, tPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, tPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>);                                                                                  
00348                 vb.setValueFloat2Ex (<a class="code" href="namespaceNL3D.html#a309">WATER_VB_DX</a>,  k, 0, 0);                    
00349         }
00350         <font class="keyword">static</font> std::vector&lt;uint32&gt; ib;
00351         ib.resize(3 * p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size());
00352 
00353         <font class="keywordflow">for</font> (k = 0; k &lt; p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() - 2; ++k)
00354         {
00355                 ib[ k * 3      ] = 0;
00356                 ib[ k * 3  + 1 ] = k + 1;
00357                 ib[ k * 3  + 2 ] = k + 2;
00358         }       
00359         drv-&gt;renderSimpleTriangles(&amp;ib[0], p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() - 2);      
00360 }
00361 
00362 <font class="comment">//***************************************************************************************************************</font>
00363 
<a name="l00364"></a><a class="code" href="classNL3D_1_1CWaterRenderObs.html#a0">00364</a> <font class="keywordtype">void</font>    CWaterRenderObs::traverse(IObs *caller)
00365 {                       
00366         <a class="code" href="hierarchical__timer_8h.html#a4">H_AUTO</a>( NL3D_Water_Render );
00367 
00368         CRenderTrav                                     *trav                   = NLMISC::safe_cast&lt;CRenderTrav *&gt;(Trav);
00369         CWaterModel                                     *m                              = NLMISC::safe_cast&lt;CWaterModel *&gt;(Model);
00370         CWaterShape                                     *shape                  = NLMISC::safe_cast&lt;CWaterShape *&gt;((IShape *) m-&gt;Shape);
00371         IDriver                                         *drv                    = trav-&gt;getDriver();
00372         <font class="keyword">const</font> std::vector&lt;CPlane&gt;       &amp;worldPyramid   = ((NLMISC::safe_cast&lt;CClipTrav *&gt;(<a class="code" href="classNL3D_1_1IBaseRenderObs.html#m1">ClipObs</a>-&gt;Trav))-&gt;WorldFrustumPyramid);       
00373 
00374         <font class="keywordflow">if</font> (shape-&gt;_GridSizeTouched)
00375         {
00376                 shape-&gt;setupVertexBuffer();
00377         }
00378 
00379 
00380         <font class="comment">// inverted object world matrix</font>
00381         <font class="comment">//NLMISC::CMatrix invObjMat = HrcObs-&gt;WorldMatrix.inverted();</font>
00382 
00383         <font class="comment">// viewer pos in world space</font>
00384         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;obsPos = <font class="comment">/*invObjMat **/</font> trav-&gt;CamPos;
00385 
00386         <font class="comment">// camera matrix in world space</font>
00387         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &amp;camMat = trav-&gt;CamMatrix;
00388 
00389         <font class="comment">// view matrix (inverted cam matrix)</font>
00390         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &amp;viewMat = trav-&gt;ViewMatrix;
00391 
00392         <font class="comment">// compute the camera matrix such as there is no rotation around the y axis</font>
00393         <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> camMatUp;
00394         <a class="code" href="namespaceNL3D.html#a478">ComputeUpMatrix</a>(camMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>(), camMatUp, camMat);
00395         camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_6">setPos</a>(camMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_4">getPos</a>());
00396 
00397         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> matViewUp = camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z293_7">inverted</a>();
00398 
00399         <font class="comment">// plane z pos in world</font>
00400         <font class="keyword">const</font> <font class="keywordtype">float</font> zHeight =  <a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>-&gt;WorldMatrix.getPos().z;
00401 
00402         <font class="keyword">const</font> sint numStepX = CWaterShape::getScreenXGridSize();
00403         <font class="keyword">const</font> sint numStepY = CWaterShape::getScreenYGridSize();
00404 
00405         <font class="keyword">const</font> <font class="keywordtype">float</font> invNumStepX = 1.f / numStepX;
00406         <font class="keyword">const</font> <font class="keywordtype">float</font> invNumStepY = 1.f / numStepY;
00407 
00408         <font class="keyword">const</font> uint rotBorderSize = (shape-&gt;_MaxGridSize + (shape-&gt;_XGridBorder &lt;&lt; 1) - numStepX) &gt;&gt; 1;
00409         
00410         <font class="keyword">const</font> sint isAbove = obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> &gt; zHeight ? 1 : 0;
00411 
00412                 
00413 
00414         <font class="comment">//==================//</font>
00415         <font class="comment">// polygon clipping //</font>
00416         <font class="comment">//==================//</font>
00417 
00418         uint k;
00419         <font class="keyword">static</font> <a class="code" href="classNLMISC_1_1CPolygon.html">NLMISC::CPolygon</a> clippedPoly, endClippedPoly;    
00420         clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.resize(shape-&gt;_Poly.Vertices.size());
00421         <font class="keywordflow">for</font> (k = 0; k &lt; shape-&gt;_Poly.Vertices.size(); ++k)
00422         {
00423                 clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>[k].set(shape-&gt;_Poly.Vertices[k].x, 
00424                                                                         shape-&gt;_Poly.Vertices[k].y,
00425                                                                         0
00426                                                                    );
00427         }
00428         
00429         endClippedPoly = clippedPoly;
00430 
00431 
00432         <font class="comment">// Build the view pyramid. We need to rebuild it because we use a wider one to avoid holes on the border of the screen</font>
00433 
00434         <font class="keyword">static</font> <a class="code" href="classNLMISC_1_1CPlane.html">NLMISC::CPlane</a> plvect[6];
00435 
00436         <font class="keyword">const</font> <font class="keywordtype">float</font> borderFactor = 0.67f; <font class="comment">// we must avoid numerical imprecision as well as the rotation case (must divide by sqrt(2))</font>
00437         <font class="keyword">const</font> <font class="keywordtype">float</font> fRight = trav-&gt;Right * (2.f * borderFactor * (float) CWaterShape::_XGridBorder +  (float) numStepX) / numStepX;
00438         <font class="keyword">const</font> <font class="keywordtype">float</font> fTop   = trav-&gt;Top   * (2.f * borderFactor * (float) CWaterShape::_YGridBorder +  (float) numStepY) / numStepY;
00439 
00440         <font class="comment">// build pyramid corners</font>
00441         <font class="keyword">const</font> <font class="keywordtype">float</font> nearDist        = trav-&gt;Near;
00442         <font class="keyword">const</font> <font class="keywordtype">float</font> farDist                     = trav-&gt;Far;    
00443         <font class="keyword">const</font> <font class="keywordtype">float</font> transitionDist      = shape-&gt;_TransitionRatio   * farDist;
00444 
00445         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>           pfoc(0,0,0);
00446         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>           lb(-fRight,  nearDist, - fTop );
00447         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>           lt(-fRight,  nearDist, fTop  );
00448         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>           rb( fRight,  nearDist, -fTop );
00449         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>           rt(fRight,      nearDist, fTop  );
00450 
00451         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>           lbfarDist(-fRight, transitionDist, -fTop);
00452         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>           ltfarDist(-fRight, transitionDist, fTop );
00453         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>           rtfarDist(fRight , transitionDist, fTop  );
00454 
00455         
00456         plvect[0].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(lt, lb, rt);                                                     <font class="comment">// near plane</font>
00457         plvect[1].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(lbfarDist, ltfarDist, rtfarDist);    <font class="comment">// far plane</font>
00458 
00459         plvect[2].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(pfoc, lt, lb);
00460         plvect[3].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(pfoc, rt, lt);
00461         plvect[4].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(pfoc, rb, rt);
00462         plvect[5].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(pfoc, lb, rb);
00463 
00464                 
00465         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> pyramidMat = viewMat * <a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>-&gt;WorldMatrix;
00466         <font class="keywordflow">for</font> (k = 0; k &lt; worldPyramid.size(); ++k)
00467         {
00468                 plvect[k] = plvect[k] * pyramidMat; <font class="comment">// put the plane in object space</font>
00469         }
00470 
00471         clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#a3">clip</a>(plvect, 6);    <font class="comment">// get the tesselated part of the poly </font>
00472 
00473         <font class="comment">// modify the pyramid to get the transition part of the poly (no tesselated)</font>
00474         plvect[0].<a class="code" href="classNLMISC_1_1CPlane.html#m3">d</a>   += (transitionDist - nearDist);
00475         <font class="comment">// plvect[1].d   -= (farDist - transitionDist);</font>
00476         <font class="comment">// dont clip by far plane (done by driver)</font>
00477         endClippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#a3">clip</a>(plvect, 1);
00478         endClippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#a3">clip</a>(plvect + 2, 4);
00479 
00480 
00481 
00483         <font class="keywordflow">if</font> (clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() == 0 &amp;&amp; endClippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() == 0)
00484         {
00485                 <font class="keywordflow">return</font>; 
00486         }
00487 
00488         
00489         <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> modelMat;
00490         modelMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_6">setPos</a>(<a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, zHeight));
00491         drv-&gt;setupModelMatrix(modelMat);
00492         
00493 
00494         <font class="comment">//==================//</font>
00495         <font class="comment">// material setup   //</font>
00496         <font class="comment">//==================//</font>
00497 
00498         CWaterHeightMap &amp;whm = <a class="code" href="namespaceNL3D.html#a480">GetWaterPoolManager</a>().getPoolByID(shape-&gt;_WaterPoolID);
00499         <a class="code" href="classNL3D_1_1CWaterRenderObs.html#c0">setupMaterialNVertexShader</a>(drv, shape, obsPos, isAbove &gt; 0, whm.getUnitSize() * (whm.getSize() &gt;&gt; 1), zHeight);
00500 
00501         <font class="comment">//setAttenuationFactor(drv, false, obsPos, camMat.getJ(), farDist);</font>
00502         <font class="comment">//disableAttenuation(drv);</font>
00503 
00504         
00505         <font class="comment">//================================//</font>
00506         <font class="comment">//      Vertex buffer setup           //</font>
00507         <font class="comment">//================================//</font>
00508                 
00509         drv-&gt;activeVertexBuffer(shape-&gt;_VB);
00510 
00511         <font class="comment">//================================//</font>
00512         <font class="comment">//      tesselated part of the poly   //</font>
00513         <font class="comment">//================================//</font>
00514 
00515         <font class="keywordflow">if</font> (clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size())
00516         {
00517                 
00518                 <font class="comment">//======================================//</font>
00519                 <font class="comment">// Polygon projection on the near plane //</font>
00520                 <font class="comment">//======================================//</font>
00521 
00522                 <font class="keyword">static</font> <a class="code" href="classNLMISC_1_1CPolygon2D.html">NLMISC::CPolygon2D</a> projPoly; <font class="comment">// projected poly</font>
00523                 projPoly.<a class="code" href="classNLMISC_1_1CPolygon2D.html#m0">Vertices</a>.resize(clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size());
00524                 <font class="keyword">const</font> <font class="keywordtype">float</font> Near = trav-&gt;Near;
00525                 <font class="keyword">const</font> <font class="keywordtype">float</font> xFactor = (numStepX &gt;&gt; 1) * Near  / trav-&gt;Right;
00526                 <font class="keyword">const</font> <font class="keywordtype">float</font> xOffset = (float) (numStepX &gt;&gt; 1) + 0.5f;
00527                 <font class="keyword">const</font> <font class="keywordtype">float</font> yFactor = - (numStepX &gt;&gt; 1) * Near  / trav-&gt;Top;
00528                 <font class="keyword">const</font> <font class="keywordtype">float</font> yOffset = (float) (numStepY &gt;&gt; 1) - 0.5f * isAbove;
00529                 
00530                 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> projMat =  matViewUp * <a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>-&gt;WorldMatrix;
00531                 <font class="keywordflow">for</font> (k = 0; k &lt; clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size(); ++k)
00532                 {
00533                         <font class="comment">// project points in the view</font>
00534                         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> = projMat * clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>[k];
00535                         <font class="keywordtype">float</font> invY = 1.f / t.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>;
00536                         projPoly.<a class="code" href="classNLMISC_1_1CPolygon2D.html#m0">Vertices</a>[k].set(xFactor * t.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> * invY + xOffset, yFactor * t.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> * invY + yOffset);
00537                 }
00538 
00539 
00540 
00541                 <font class="comment">//=============================================//</font>
00542                 <font class="comment">// compute borders of poly at a low resolution //</font>
00543                 <font class="comment">//=============================================//</font>
00544 
00545                 <a class="code" href="classNLMISC_1_1CPolygon2D.html#s2">NLMISC::CPolygon2D::TRasterVect</a> rasters;                
00546                 sint startY;
00547                 projPoly.<a class="code" href="classNLMISC_1_1CPolygon2D.html#a7">computeBorders</a>(rasters, startY);
00548 
00549                 <font class="keywordflow">if</font> (rasters.size())
00550                 {
00551                         <font class="comment">//===========================//</font>
00552                         <font class="comment">// perform Water animation   //</font>
00553                         <font class="comment">//===========================//                 </font>
00554 
00555                         <font class="keyword">const</font> <font class="keywordtype">float</font> WaterRatio = whm.getUnitSize();
00556                         <font class="keyword">const</font> <font class="keywordtype">float</font> invWaterRatio = 1.f / WaterRatio;
00557                         <font class="keyword">const</font> uint  WaterHeightMapSize = whm.getSize();
00558                         <font class="keyword">const</font> uint  doubleWaterHeightMapSize = (WaterHeightMapSize &lt;&lt; 1);
00559                                                 
00560 
00561                         sint64 idate = (NLMISC::safe_cast&lt;CHrcTrav *&gt;(<a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>-&gt;Trav))-&gt;CurrentDate;
00562 
00563 
00564                         
00565                         <font class="keywordflow">if</font> (idate != whm.Date)
00566                         {
00567                                 whm.setUserPos((sint) (obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> * invWaterRatio) - (WaterHeightMapSize &gt;&gt; 1),
00568                                            (sint) (obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> * invWaterRatio) - (WaterHeightMapSize &gt;&gt; 1)
00569                                           );
00570                                 <a class="code" href="debug_8h.html#a6">nlassert</a>(m-&gt;_Scene); <font class="comment">// this object should have been created from a CWaterShape!</font>
00571                                 whm.animate((<font class="keywordtype">float</font>) (m-&gt;_Scene-&gt;getEllapsedTime()));                                                                                            
00572                                 whm.Date = idate;
00573                         }
00574                         
00575                         <font class="comment">//float startDate = (float) (1000.f * NLMISC::CTime::ticksToSecond(NLMISC::CTime::getPerformanceTime()));</font>
00576 
00577                         <font class="comment">//=====================================//</font>
00578                         <font class="comment">//      compute heightmap useful area      //</font>
00579                         <font class="comment">//=====================================//</font>
00580 
00588                         sint mapPosX, mapPosY;
00589 
00592                         whm.getUserPos(mapPosX, mapPosY);
00593 
00594                         <font class="keyword">const</font> uint mapBorder = 3;
00595                         <font class="comment">/*const sint qRight = (sint) mapPosX + (WaterHeightMapSize &gt;&gt; 1) - mapBorder;</font>
00596 <font class="comment">                                  sint qLeft  = (sint) mapPosX - (WaterHeightMapSize &gt;&gt; 1);</font>
00597 <font class="comment">                        const sint qUp    = (sint) mapPosY + (WaterHeightMapSize &gt;&gt; 1) - mapBorder;</font>
00598 <font class="comment">                                  sint qDown  = (sint) mapPosY - (WaterHeightMapSize &gt;&gt; 1); */</font>
00599 
00600 
00601                         <font class="keyword">const</font> sint qRight = (sint) mapPosX + WaterHeightMapSize - mapBorder;
00602                                   sint qLeft  = (sint) mapPosX;
00603                         <font class="keyword">const</font> sint qUp    = (sint) mapPosY + WaterHeightMapSize - mapBorder;
00604                                   sint qDown  = (sint) mapPosY;
00605 
00607                         <font class="keyword">const</font> sint qSubLeft = qLeft - (uint)  qLeft % WaterHeightMapSize;
00608                         <font class="keyword">const</font> sint qSubDown = qDown - (uint)  qDown % WaterHeightMapSize;
00609 
00610                         qLeft += mapBorder;
00611                         qDown += mapBorder;
00612 
00613                 
00614 
00615                         
00616                         <font class="comment">//==============================================//</font>
00617                         <font class="comment">// setup rays to be traced, and their increment //</font>
00618                         <font class="comment">//==============================================//</font>
00619                         
00620 
00621                         <font class="comment">// compute  camera rays in world space</font>
00622                         CVector currHV = trav-&gt;Left * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_7">getI</a>() + trav-&gt;Near * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>() + trav-&gt;Top * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_9">getK</a>(); <font class="comment">// current border vector, incremented at each line</font>
00623                         CVector currV; <font class="comment">// current ray vector</font>
00624                         CVector xStep = (trav-&gt;Right - trav-&gt;Left) * invNumStepX * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_7">getI</a>();        <font class="comment">// xStep for the ray vector</font>
00625                         CVector yStep = (trav-&gt;Bottom - trav-&gt;Top) * invNumStepY * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_9">getK</a>();    <font class="comment">// yStep for the ray vector</font>
00626                         
00627 
00628 
00629                         <font class="comment">//===============================================//</font>
00630                         <font class="comment">//                              perform display                  //</font>
00631                         <font class="comment">//===============================================//</font>
00632 
00633                         <font class="comment">// scale currHV at the top of the poly</font>
00634                         currHV += (startY - 0.5f  * isAbove) * yStep;
00635 
00636                         <font class="comment">// current index buffer used. We swap each time a row has been drawn</font>
00637                         std::vector&lt;uint32&gt; *currIB = &amp;CWaterShape::_IBUpDown, *otherIB = &amp;CWaterShape::_IBDownUp;
00638 
00639                                         
00640                         sint vIndex = 0; <font class="comment">// index in vertices   </font>
00641 
00642                         <font class="comment">// current raster position</font>
00643                         sint oldStartX, oldEndX, realStartX, realEndX;  
00644                         <font class="comment">//float invNearWidth = numStepX / (trav-&gt;Right - trav-&gt;Left);</font>
00645 
00646                                 <font class="comment">//nlinfo("size = %d, maxSize = ", rasters.size(), numStepY);</font>
00647 
00648 
00649                         <font class="keyword">const</font> uint wqHeight = rasters.size();
00650                         <font class="keywordflow">if</font> (wqHeight)
00651                         {
00652                                 <font class="comment">// denominator of the intersection equation</font>
00653                                 <font class="keyword">const</font> <font class="keywordtype">float</font> denom = - obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> + zHeight; 
00654                                 <font class="comment">// test the upper raster</font>
00655                                 <font class="comment">// if it is above the horizon, we modify it to reach the correct location</font>
00656                                 <font class="keyword">const</font> <font class="keywordtype">float</font> horizonEpsilon = 10E-4f; <font class="comment">// we must be a little below the horizon</font>
00657 
00658                                 <font class="comment">// distance from the viewer along the traced ray</font>
00659                                 <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>;
00660 
00661                                 
00662 
00663 
00664                                  NLMISC::CPolygon2D::TRasterVect::const_iterator it = rasters.begin();
00665                                 <font class="keywordflow">for</font> (uint <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> = 0; <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> &lt;= wqHeight; ++<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a>)
00666                                 {               
00667                                         <font class="comment">//nlinfo("start = %d, end = %d", it-&gt;first, it-&gt;second);                                </font>
00668                                         <font class="keyword">const</font> sint startX = it-&gt;first;
00669                                         <font class="keyword">const</font> sint endX   = (it-&gt;second + 1);
00670 
00671                                         <a class="code" href="debug_8h.html#a6">nlassert</a>(startX &gt;= - (sint) rotBorderSize);
00672                                         <a class="code" href="debug_8h.html#a6">nlassert</a>(endX  &lt;= (sint) (numStepX + rotBorderSize));
00673 
00674                                         <font class="keywordflow">if</font> (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> != 0)
00675                                         {
00676                                                 realStartX = <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(startX, oldStartX);
00677                                                 realEndX = std::max(endX, oldEndX);
00678                                         }
00679                                         <font class="keywordflow">else</font>
00680                                         {
00681                                                 realStartX = startX;
00682                                                 realEndX =   endX;
00683                                         }
00684 
00685                                         
00686                                         <font class="comment">// current view vector</font>
00687                                         currV   = currHV + (realStartX - 0.5f) * xStep;
00688                                         
00689                                         <font class="keywordflow">if</font> (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> == 0)
00690                                         {
00691                                                 <font class="keywordflow">if</font> (isAbove)
00692                                                 {
00693                                                         <font class="comment">// test wether the first row is out of horizon.</font>
00694                                                         <font class="comment">// if this is the case, we make a correction</font>
00695                                                         <font class="keywordflow">if</font> (denom * currV.z &lt;= 0)
00696                                                         {                                       
00697                                                                 <font class="comment">// correct for the first line only by adding a y offset</font>
00698                                                                 currV += yStep * ((denom &gt; 0 ? horizonEpsilon : - horizonEpsilon)   - currV.z) / yStep.z;
00699                                                         }
00700 
00701                                                         <font class="comment">// now, for the transition, check wether the first raster does not go over the transition dist</font>
00702                                                 
00703                                                         <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> = denom / currV.z;
00704                                                         <font class="keyword">const</font> <font class="keywordtype">float</font> VJ = camMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>() * currV;
00705                                                         <font class="keywordflow">if</font> ( <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * VJ &gt;  transitionDist)
00706                                                         {                                                       
00707                                                                 <font class="keywordtype">float</font> delta = (1.f / yStep.z) * ( denom * VJ / transitionDist - currV.z);
00708                                                                 <font class="comment">// correct the first line to reach that position</font>
00709                                                                 currV += delta * yStep;
00710                                                         }
00711                                                 }
00712                                         }
00713 
00714                                         
00715                                         uint8 *vbPointer = (uint8 *) shape-&gt;_VB.getVertexCoordPointer() + shape-&gt;_VB.getVertexSize() * (vIndex + realStartX + rotBorderSize);                                                                                           
00716                                                 
00717 
00718                                         <font class="keywordflow">for</font> (sint k = realStartX; k &lt;= realEndX; ++k)
00719                                         {       
00720                                                 <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> =   denom / currV.z;                                          
00721                                                 <font class="comment">// compute intersection with plane                                                                                      </font>
00722                                                 CVector inter = <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * currV;
00723                                                 inter.z += obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>;
00724                                                 <a class="code" href="namespaceNL3D.html#a477">SetupWaterVertex</a>(qLeft, qRight, qUp, qDown, qSubLeft, qSubDown, inter, invWaterRatio, doubleWaterHeightMapSize, whm, vbPointer, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
00725                                                 currV += xStep;                                         
00726                                         }
00727 
00728                                         <font class="keywordflow">if</font> (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> != 0) <font class="comment">// 2 line of the ib done ?</font>
00729                                         {                                               
00730                                                 sint count = oldEndX - oldStartX;
00731                                                 <font class="keywordflow">if</font> (count &gt; 0)
00732                                                 {                                                                                               
00733                                                         drv-&gt;renderSimpleTriangles(&amp;((*currIB)[(oldStartX + rotBorderSize) * 6]),
00734                                                                                                  2 * count );                           
00735                                                 }               
00736                                         }
00737 
00738                                         oldStartX = startX;
00739                                         oldEndX   = endX;
00740                                         currHV    += yStep;
00741                                         vIndex    = (numStepX + 2 * rotBorderSize + 1) - vIndex; <font class="comment">// swap first row and second row</font>
00742                                         std::swap(currIB, otherIB);
00743                                         <font class="keywordflow">if</font> (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> &lt; (wqHeight - 1))
00744                                         {
00745                                                 ++it;
00746                                         }
00747                                         <font class="keywordflow">else</font>
00748                                         {
00749                                                 <font class="keywordflow">if</font> (!isAbove)
00750                                                 {
00751                                                         <font class="comment">// last line</font>
00752                                                         <font class="comment">// test wether we are out of horizon</font>
00753                                                         <font class="keywordflow">if</font> (denom * currHV.z &lt;= 0)
00754                                                         {                                               
00755                                                                 <font class="comment">// correct for the first line only by adding a y offset</font>
00756                                                                 currHV += yStep * ((denom &gt; 0 ? horizonEpsilon : - horizonEpsilon)  - currHV.z) / yStep.z;
00757                                                         }
00758 
00759                                                         <font class="comment">// now, for the transition, check wether the first raster does not go over the transition dist</font>
00760                                                 
00761                                                         <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> = denom / currHV.z;
00762                                                         <font class="keyword">const</font> <font class="keywordtype">float</font> VJ = camMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>() * currHV;
00763                                                         <font class="keywordflow">if</font> ( <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * VJ &gt;  transitionDist)
00764                                                         {                                                       
00765                                                                 <font class="keywordtype">float</font> delta = (1.f / yStep.z) * ( denom * VJ / transitionDist - currHV.z);
00766                                                                 <font class="comment">// correct the first line to reach that position</font>
00767                                                                 currHV += delta * yStep;
00768                                                         }
00769                                                 }
00770 
00771                                         }
00772                                 }
00773                                         
00774                         }
00775                         <font class="comment">//nlinfo("display: %f ms", (float) (1000.f * NLMISC::CTime::ticksToSecond(NLMISC::CTime::getPerformanceTime()) - startDate));</font>
00776                 }
00777         }
00778 
00779         <font class="comment">//=========================================//</font>
00780         <font class="comment">//                      display end poly               //</font>
00781         <font class="comment">//=========================================//</font>
00782 
00783         <font class="keywordflow">if</font> (endClippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() != 0)
00784         {       
00785                 CMatrix mtx; <font class="comment">/*= HrcObs-&gt;WorldMatrix;*/</font>
00786                 <font class="comment">// mtx.setPos(NLMISC::CVector(-obsPos.x, -obsPos.y, obsPos.z));</font>
00787 
00788                 mtx.setPos(<a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>-&gt;WorldMatrix.getPos() + <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(-obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, -obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, 0));
00789                 <font class="comment">// set right obsever position</font>
00790                 drv-&gt;setConstant(7, 0, 0, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> <font class="comment">/* - zHeight*/</font> , 0.f);
00791                 <font class="comment">//setAttenuationFactor(drv, true, obsPos, camMat.getJ(), farDist);                              </font>
00792                 <a class="code" href="namespaceNL3D.html#a479">DrawPoly2D</a>(shape-&gt;_VB, drv, mtx, endClippedPoly);
00793         }
00794 
00795         <font class="comment">/*if (endTransitionClippedPoly.Vertices.size() != 0)</font>
00796 <font class="comment">        {                               </font>
00797 <font class="comment">                disableAttenuation(drv);                                </font>
00798 <font class="comment">                DrawPoly2D(shape-&gt;_VB, drv, HrcObs-&gt;WorldMatrix, endTransitionClippedPoly);</font>
00799 <font class="comment">        }*/</font>
00800 
00801 
00802         <font class="keywordflow">if</font> (drv-&gt;isVertexProgramSupported())
00803         {
00804                 <font class="keywordtype">bool</font> result =  drv-&gt;activeVertexProgram(NULL);
00805                 <font class="keywordflow">if</font> (!result) <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"no vertex program setupped"</font>);
00806         }
00807         
00808 
00809         this-&gt;<a class="code" href="classNL3D_1_1IObs.html#z620_0">traverseSons</a>();
00810 }
00811 
00812 <font class="comment">//***********************</font>
00813 <font class="comment">// Water MATERIAL SETUP //</font>
00814 <font class="comment">//***********************</font>
00815 
<a name="l00816"></a><a class="code" href="classNL3D_1_1CWaterRenderObs.html#c0">00816</a> <font class="keywordtype">void</font> CWaterRenderObs::setupMaterialNVertexShader(IDriver *drv, CWaterShape *shape, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;obsPos, <font class="keywordtype">bool</font> above, <font class="keywordtype">float</font> maxDist, <font class="keywordtype">float</font> zHeight)
00817 {       
00818         CMaterial WaterMat;
00819         WaterMat.setLighting(<font class="keyword">false</font>);
00820         WaterMat.setDoubleSided(<font class="keyword">true</font>);  
00821         WaterMat.setColor(<a class="code" href="classNLMISC_1_1CRGBA.html#p7">NLMISC::CRGBA::White</a>);
00822 
00823         WaterMat.setBlend(<font class="keyword">true</font>);
00824         WaterMat.setSrcBlend(CMaterial::srcalpha);
00825         WaterMat.setDstBlend(CMaterial::invsrcalpha);
00826         WaterMat.setZWrite(<font class="keyword">true</font>);
00827 
00828         <font class="keywordflow">if</font> (drv-&gt;isVertexProgramSupported())    
00829         {
00830                 <font class="keyword">const</font> uint cstOffset = 4; <font class="comment">// 4 places for the matrix</font>
00831                 <a class="code" href="classNLMISC_1_1CVectorH.html">NLMISC::CVectorH</a> cst[13];
00832                 
00833                 
00834                 <font class="comment">//=========================//</font>
00835                 <font class="comment">//      setup Water material   //</font>
00836                 <font class="comment">//=========================//</font>
00837         
00838                 uint alphaMapStage, envMapStage;        
00839                 WaterMat.setColor(<a class="code" href="classNLMISC_1_1CRGBA.html#p7">NLMISC::CRGBA::White</a>);
00840 
00841                 <font class="keywordtype">bool</font> useBumpedVersion = <font class="keyword">false</font>;
00842                 <font class="keywordtype">bool</font> useEMBM = <font class="keyword">false</font>;
00843                 <font class="keywordflow">if</font> (drv-&gt;getNbTextureStages() &gt;= 4 &amp;&amp; (drv-&gt;supportTextureShaders() || drv-&gt;supportEMBM()))
00844                 {
00845                         <font class="keywordflow">if</font> (drv-&gt;supportTextureShaders())
00846                         {
00847                                 useBumpedVersion = <font class="keyword">true</font>;
00848                         }
00849                         <font class="keywordflow">else</font> <font class="comment">// must support EMBM on stages 0 and 1</font>
00850                         {
00851                                 <font class="keywordflow">if</font> (drv-&gt;isEMBMSupportedAtStage(0) &amp;&amp; drv-&gt;isEMBMSupportedAtStage(1))
00852                                 {
00853                                         useBumpedVersion = <font class="keyword">true</font>;
00854                                         useEMBM = <font class="keyword">true</font>;
00855                                 }
00856                         }
00857                 }               
00858 
00859                 
00860                 <font class="keywordflow">if</font> (!useBumpedVersion)
00861                 {                                               
00862                         WaterMat.texEnvOpRGB(0, CMaterial::Modulate);
00863                         alphaMapStage = 1;
00864                         envMapStage  = 0;
00865                 }
00866                 <font class="keywordflow">else</font>
00867                 {
00868                         shape-&gt;updateHeightMapNormalizationFactors();
00869 
00870                         <font class="comment">// setup bump proj matrix                       </font>
00871                         <font class="keyword">const</font> <font class="keywordtype">float</font> idMat[] = {0.25f * shape-&gt;_HeightMapNormalizationFactor[0], 0, 0, 0.25f * shape-&gt;_HeightMapNormalizationFactor[0]}; 
00872                         <font class="keyword">const</font> <font class="keywordtype">float</font> idMat2[] = {shape-&gt;_HeightMapNormalizationFactor[1], 0, 0, shape-&gt;_HeightMapNormalizationFactor[1]};        
00873 
00874                         WaterMat.setTexture(0, shape-&gt;_BumpMap[0]);
00875                         WaterMat.setTexture(1, shape-&gt;_BumpMap[1]);                             
00876                         WaterMat.texEnvOpRGB(2, CMaterial::Replace);
00877                         alphaMapStage = 3;
00878                         envMapStage   = 2;
00879 
00880                         <font class="comment">// Version with texture shaders</font>
00881                         <font class="keywordflow">if</font> (!useEMBM)
00882                         {                                               
00883                                 drv-&gt;setMatrix2DForTextureOffsetAddrMode(1, idMat);
00884                                 drv-&gt;setMatrix2DForTextureOffsetAddrMode(2, idMat2);                            
00885 
00886 
00887                                 <font class="comment">//if (shape-&gt;_BumpMap[0]-&gt;supportSharing()) nlinfo(shape-&gt;_BumpMap[0]-&gt;getShareName().c_str());</font>
00888                                 <font class="comment">//if (shape-&gt;_BumpMap[1]-&gt;supportSharing()) nlinfo(shape-&gt;_BumpMap[1]-&gt;getShareName().c_str());</font>
00889 
00890                                 <font class="comment">/*WaterMat.texEnvOpRGB(1, CMaterial::Replace);</font>
00891 <font class="comment">                                WaterMat.texEnvOpRGB(1, CMaterial::Replace);*/</font>
00892                                 WaterMat.enableTexAddrMode();
00893                                 WaterMat.setTexAddressingMode(0, CMaterial::FetchTexture);              
00894                                 WaterMat.setTexAddressingMode(1, CMaterial::OffsetTexture);
00895                                 WaterMat.setTexAddressingMode(2, CMaterial::OffsetTexture);
00896                                 WaterMat.setTexAddressingMode(3, shape-&gt;_ColorMap ? CMaterial::FetchTexture : CMaterial::TextureOff);                           
00897                         }
00898                         <font class="keywordflow">else</font> <font class="comment">// version with EMBM</font>
00899                         {
00900                                 drv-&gt;setEMBMMatrix(0, idMat2);          
00901                                 drv-&gt;setEMBMMatrix(1, idMat2);
00902                                 WaterMat.texEnvOpRGB(0, CMaterial::EMBM);
00903                                 <font class="comment">//WaterMat.texEnvOpRGB(0, CMaterial::Replace);</font>
00904                                 <font class="comment">//WaterMat.texEnvOpRGB(0, CMaterial::EMBM);</font>
00905                                 WaterMat.texEnvOpRGB(1, CMaterial::EMBM);
00906                                 WaterMat.setTexture(0, NULL);                   
00907                         }
00908                 }
00909                 
00910 
00911                 <font class="keywordflow">if</font> (!above &amp;&amp; shape-&gt;_EnvMap[1])
00912                 {
00913                         WaterMat.setTexture(envMapStage, shape-&gt;_EnvMap[1]);    
00914                         <font class="comment">//if (shape-&gt;_EnvMap[1]-&gt;supportSharing()) nlinfo(shape-&gt;_EnvMap[1]-&gt;getShareName().c_str());</font>
00915                 }
00916                 <font class="keywordflow">else</font>
00917                 {
00918                         WaterMat.setTexture(envMapStage, shape-&gt;_EnvMap[0]);
00919                 }
00920                 shape-&gt;envMapUpdate();
00921 
00922                 
00923                 <font class="keywordflow">if</font> (shape-&gt;_ColorMap)
00924                 {                       
00925                         WaterMat.setTexture(alphaMapStage, shape-&gt;_ColorMap);
00926                         <font class="comment">//if (shape-&gt;_ColorMap-&gt;supportSharing()) nlinfo(shape-&gt;_ColorMap-&gt;getShareName().c_str());</font>
00927 
00928 
00929                         <font class="comment">// setup 2x3 matrix for lookup in diffuse map</font>
00930                         cst[13 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape-&gt;_ColorMapMatColumn0.x, shape-&gt;_ColorMapMatColumn1.x, 0, shape-&gt;_ColorMapMatColumn0.x * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + shape-&gt;_ColorMapMatColumn1.x * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + shape-&gt;_ColorMapMatPos.x); 
00931                         cst[14 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape-&gt;_ColorMapMatColumn0.y, shape-&gt;_ColorMapMatColumn1.y, 0, shape-&gt;_ColorMapMatColumn0.y * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + shape-&gt;_ColorMapMatColumn1.y * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + shape-&gt;_ColorMapMatPos.y);                   
00932                         WaterMat.texEnvOpRGB(alphaMapStage, CMaterial::Modulate);
00933                         WaterMat.texEnvOpAlpha(alphaMapStage, CMaterial::Modulate);
00934                 }
00935                 <font class="keywordflow">else</font>
00936                 {
00937                         cst[13 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0, 0, 0, 0);
00938                         cst[14 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0, 0, 0, 0);                    
00939                 }
00940 
00941                 cst[16 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0.1f, 0.1f, 0.1f, 0.1f); <font class="comment">// used to avoid imprecision when performing a RSQ to get distance from the origin</font>
00942                 <font class="comment">// cst[16 - cstOffset].set(0.0f, 0.0f, 0.0f, 0.0f); // used to avoid imprecision when performing a RSQ to get distance from the origin</font>
00943 
00944                                         
00945 
00946 
00947                 cst[5  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0.f, 0.f, 0.f, 0.f); <font class="comment">// claping negative values to 0</font>
00948 
00949                 <font class="comment">// slope of attenuation of normal / height with distance                </font>
00950                 <font class="keyword">const</font> <font class="keywordtype">float</font> invMaxDist = shape-&gt;_WaveHeightFactor / maxDist;
00951                 cst[6  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(invMaxDist, shape-&gt;_WaveHeightFactor, 0, 0);            
00952 
00953                 <font class="comment">/*cst[6  - cstOffset].set(invMaxDist, invMaxDist, invMaxDist, invMaxDist); // upcoming light vectorshape-&gt;_WaveHeightFactor             </font>
00954 <font class="comment">                cst[15  - cstOffset].set(shape-&gt;_WaveHeightFactor, shape-&gt;_WaveHeightFactor, shape-&gt;_WaveHeightFactor, shape-&gt;_WaveHeightFactor);</font>
00955 <font class="comment">                */</font>
00956 
00957 
00958                                 
00959 
00961                 drv-&gt;setConstantMatrix(0, IDriver::ModelViewProjection, IDriver::Identity);
00962 
00963                 <font class="comment">// retrieve current time</font>
00964                 <font class="keywordtype">float</font> date  = 0.001f * <a class="code" href="classNLMISC_1_1CTime.html#d1">NLMISC::CTime::getLocalTime</a>();
00965                 <font class="comment">// set bumpmaps pos</font>
00966                 cst[9  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> * shape-&gt;_HeightMapScale[0].x + date * shape-&gt;_HeightMapSpeed[0].x, shape-&gt;_HeightMapScale[0].y * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + date * shape-&gt;_HeightMapSpeed[0].y, 0.f, 0.f); <font class="comment">// bump map 0 offset</font>
00967                 cst[10  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape-&gt;_HeightMapScale[0].x, shape-&gt;_HeightMapScale[0].y, 0, 0); <font class="comment">// bump map 0 scale</font>
00968                 cst[11  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape-&gt;_HeightMapScale[1].x * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + date * shape-&gt;_HeightMapSpeed[1].x, shape-&gt;_HeightMapScale[1].y * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + date * shape-&gt;_HeightMapSpeed[0].y, 0.f, 0.f); <font class="comment">// bump map 1 offset</font>
00969                 cst[12  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape-&gt;_HeightMapScale[1].x, shape-&gt;_HeightMapScale[1].y, 0, 0); <font class="comment">// bump map 1 scale</font>
00970 
00971                                 
00972                         
00973                 
00974 
00975 
00976                 cst[4  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(1.f, 1.f, 1.f, 1.f); <font class="comment">// use with min man, and to get the 1 constant             </font>
00977                 cst[7  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0, 0, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> - zHeight, 0.f);
00978                 cst[8  - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0.5f, 0.5f, 0.f, 0.f); <font class="comment">// used to scale reflected ray into the envmap</font>
00979 
00980         
00981                 
00982 
00984                 drv-&gt;setConstant(4, <font class="keyword">sizeof</font>(cst) / <font class="keyword">sizeof</font>(cst[0]), (<font class="keywordtype">float</font> *) &amp;cst[0]);
00985 
00986                 shape-&gt;initVertexProgram();             
00987                 <font class="keywordtype">bool</font> result;
00988                 <font class="keywordflow">if</font> (useBumpedVersion)
00989                 {
00990                         <font class="keywordflow">if</font> (!useEMBM)
00991                         {                       
00992                                 result = shape-&gt;getColorMap() ? drv-&gt;activeVertexProgram((shape-&gt;_VertexProgramBump2Diffuse).get())
00993                                                                                                 : drv-&gt;activeVertexProgram((shape-&gt;_VertexProgramBump2).get());
00994                         }
00995                         <font class="keywordflow">else</font>
00996                         {
00997                                 result = shape-&gt;getColorMap() ? drv-&gt;activeVertexProgram((shape-&gt;_VertexProgramBump1Diffuse).get())
00998                                                                                                 : drv-&gt;activeVertexProgram((shape-&gt;_VertexProgramBump1).get());
00999                         }
01000                 }
01001                 <font class="keywordflow">else</font>
01002                 {
01003                         result = shape-&gt;getColorMap() ? drv-&gt;activeVertexProgram((shape-&gt;_VertexProgramNoBumpDiffuse).get())
01004                                                                                 : drv-&gt;activeVertexProgram((shape-&gt;_VertexProgramNoBump).get());
01005                 }
01006                 <font class="keywordflow">if</font> (!result) <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"no vertex program setupped"</font>);                           
01007         }
01008         <font class="keywordflow">else</font>
01009         {               
01010                 WaterMat.setColor(<a class="code" href="classNLMISC_1_1CRGBA.html">NLMISC::CRGBA</a>(0, 32, 190, 128));      
01011         }
01012 
01013 
01014         <font class="comment">// temp for test</font>
01015 <font class="comment">/*      WaterMat = CMaterial();</font>
01016 <font class="comment">        WaterMat.initUnlit();</font>
01017 <font class="comment">        WaterMat.setDoubleSided(true);</font>
01018 <font class="comment">        WaterMat.setColor(CRGBA::Red);</font>
01019 <font class="comment"></font>
01020 <font class="comment"></font>
01021 <font class="comment">         WaterMat.texEnvOpRGB(0, CMaterial::Replace);</font>
01022 <font class="comment">        WaterMat.texEnvOpAlpha(0, CMaterial::Replace);</font>
01023 <font class="comment">        WaterMat.texEnvArg0RGB(0, CMaterial::Diffuse, CMaterial::SrcColor);</font>
01024 <font class="comment">        WaterMat.texEnvArg0Alpha(0, CMaterial::Diffuse, CMaterial::SrcAlpha);</font>
01025 <font class="comment">        */</font>
01026 
01027         drv-&gt;setupMaterial(WaterMat);
01028 }
01029 
01030 <font class="comment">//=======================================================================================</font>
01031 <font class="comment">//                                                      wave maker implementation</font>
01032 <font class="comment">//=======================================================================================</font>
01033 
01034 
<a name="l01035"></a><a class="code" href="classNL3D_1_1CWaveMakerModel.html#a0">01035</a> CWaveMakerModel::CWaveMakerModel() : _Time(0), _Scene(NULL)
01036 {
01037         <font class="comment">// AnimDetail behavior: Must be traversed in AnimDetail, even if no channel mixer registered</font>
01038         CTransform::setIsForceAnimDetail(<font class="keyword">true</font>);
01039 }
01040 
01041 <font class="comment">//================================================</font>
01042 
<a name="l01043"></a><a class="code" href="classNL3D_1_1CWaveMakerModel.html#d0">01043</a> <font class="keywordtype">void</font> CWaveMakerModel::registerBasic()
01044 {
01045         CMOT::registerModel(<a class="code" href="namespaceNL3D.html#a311">WaveMakerModelClassId</a>, <a class="code" href="namespaceNL3D.html#a277">TransformShapeId</a>, CWaveMakerModel::creator);
01046         CMOT::registerObs(<a class="code" href="namespaceNL3D.html#a3">AnimDetailTravId</a>, <a class="code" href="namespaceNL3D.html#a311">WaveMakerModelClassId</a>, CWaveMakerDetailObs::creator);       
01047 }
01048 
01049 <font class="comment">//================================================</font>
01050 
<a name="l01051"></a><a class="code" href="classNL3D_1_1CWaveMakerModel.html#a1">01051</a> ITrack* CWaveMakerModel::getDefaultTrack (uint valueId)
01052 {
01053         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
01054         <a class="code" href="classNL3D_1_1CWaveMakerModel.html#l1">CWaveMakerShape</a> *ws = NLMISC::safe_cast&lt;CWaveMakerShape *&gt;((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
01055         <font class="keywordflow">switch</font> (valueId)
01056         {
01057                 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z872_0s5">PosValue</a>:                  <font class="keywordflow">return</font> ws-&gt;getDefaultPos(); <font class="keywordflow">break</font>;      
01058                 <font class="keywordflow">default</font>: <font class="comment">// delegate to parent</font>
01059                         <font class="keywordflow">return</font> CTransformShape::getDefaultTrack(valueId);
01060                 <font class="keywordflow">break</font>;
01061         }
01062 }
01063 
01064 <font class="comment">//================================================</font>
01065 
<a name="l01066"></a><a class="code" href="classNL3D_1_1CWaveMakerDetailObs.html#a0">01066</a> <font class="keywordtype">void</font>    CWaveMakerDetailObs::traverse(IObs *caller)
01067 {
01068         CTransformAnimDetailObs::traverse(caller);
01070         CWaveMakerModel *wmm = NLMISC::safe_cast&lt;CWaveMakerModel *&gt;(Model);
01071         <a class="code" href="debug_8h.html#a6">nlassert</a>(wmm-&gt;_Scene);
01073         CWaveMakerShape *wms = NLMISC::safe_cast&lt;CWaveMakerShape *&gt;((IShape *) wmm-&gt;Shape);
01074         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>   worldPos = this-&gt;<a class="code" href="classNL3D_1_1IBaseAnimDetailObs.html#m1">ClipObs</a>-&gt;HrcObs-&gt;WorldMatrix.getPos();
01075         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html">NLMISC::CVector2f</a> pos2d(worldPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, worldPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
01077         CWaterHeightMap &amp;whm = <a class="code" href="namespaceNL3D.html#a480">GetWaterPoolManager</a>().getPoolByID(wms-&gt;_PoolID);
01078         <font class="comment">// get the time delta </font>
01079         <font class="keyword">const</font> <a class="code" href="namespaceNL3D.html#a1">TAnimationTime</a> deltaT  = <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(wmm-&gt;_Scene-&gt;getEllapsedTime(), (TAnimationTime) whm.getPropagationTime());
01080         wmm-&gt;_Time += deltaT;
01081         <font class="keywordflow">if</font> (!wms-&gt;_ImpulsionMode)
01082         {
01083                 whm.perturbate(pos2d, wms-&gt;_Intensity * cosf(2.f / wms-&gt;_Period * (<font class="keywordtype">float</font>) NLMISC::Pi * wmm-&gt;_Time), wms-&gt;_Radius);
01084         }
01085         <font class="keywordflow">else</font>
01086         {
01087                 <font class="keywordflow">if</font> (wmm-&gt;_Time &gt; wms-&gt;_Period)
01088                 {
01089                         wmm-&gt;_Time -= wms-&gt;_Period;
01090                         whm.perturbate(pos2d, wms-&gt;_Intensity, wms-&gt;_Radius);
01091                 }
01092         }
01093         this-&gt;<a class="code" href="classNL3D_1_1IObs.html#z620_0">traverseSons</a>();
01094 }
01095 
01096 
01097 } <font class="comment">// NL3D</font>
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