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BORDER=0></A> +</td><td><IMG SRC="http://www.nevrax.org/inc/img/pixel.gif" WIDTH="1" HEIGHT="1" BORDER=0 ALT=""> +</td></tr></table> + + +<!-- block --> +<TABLE bgcolor="#dddddd" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td width=1% valign=middle><img width=6 height=14 hspace=2 vspace=2 src="http://www.nevrax.org/inc/img/reddots.gif"></TD> + <TD><B>Documentation</B></TD> + <TD ALIGN=RIGHT> </td> +</tr></table> +<!-- Generated by Doxygen 1.2.14 --> +<center> +<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<hr><h1>mesh_multi_lod_instance.cpp</h1><a href="mesh__multi__lod__instance_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 +00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font> +00008 <font class="comment"> *</font> +00009 <font class="comment"> * This file is part of NEVRAX NEL.</font> +00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font> +00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font> +00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font> +00013 <font class="comment"> * any later version.</font> +00014 <font class="comment"></font> +00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font> +00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font> +00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font> +00018 <font class="comment"> * General Public License for more details.</font> +00019 <font class="comment"></font> +00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font> +00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font> +00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font> +00023 <font class="comment"> * MA 02111-1307, USA.</font> +00024 <font class="comment"> */</font> +00025 +00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font> +00027 +00028 <font class="preprocessor">#include "<a class="code" href="mesh__multi__lod__instance_8h.html">3d/mesh_multi_lod_instance.h</a>"</font> +00029 <font class="preprocessor">#include "<a class="code" href="mesh__multi__lod_8h.html">3d/mesh_multi_lod.h</a>"</font> +00030 <font class="preprocessor">#include "<a class="code" href="coarse__mesh__manager_8h.html">3d/coarse_mesh_manager.h</a>"</font> +00031 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font> +00032 +00033 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font> +00034 +00035 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC; +00036 +00037 <font class="keyword">namespace </font>NL3D +00038 { +00039 +00040 <font class="comment">// ***************************************************************************</font> +00041 +<a name="l00042"></a><a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#a0">00042</a> CMeshMultiLodInstance::CMeshMultiLodInstance () +00043 { +00044 <font class="comment">// No flags</font> +00045 <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o2">Flags</a>=0; +00046 <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o7">_CoarseMeshDistance</a> = -1.f; +00047 } +00048 +00049 <font class="comment">// ***************************************************************************</font> +00050 +<a name="l00051"></a><a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#a1">00051</a> CMeshMultiLodInstance::~CMeshMultiLodInstance () +00052 { +00053 <font class="comment">// delete instances from manager</font> +00054 <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#a3">deleteCoarseInstances</a>(); +00055 } +00056 +00057 +00058 <font class="comment">// ***************************************************************************</font> +00059 +<a name="l00060"></a><a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#d0">00060</a> <font class="keywordtype">void</font> CMeshMultiLodInstance::registerBasic() +00061 { +00062 CMOT::registerModel (<a class="code" href="namespaceNL3D.html#a144">MeshMultiLodInstanceId</a>, <a class="code" href="namespaceNL3D.html#a140">MeshBaseInstanceId</a>, CMeshMultiLodInstance::creator); +00063 CMOT::registerObs (<a class="code" href="namespaceNL3D.html#a93">LoadBalancingTravId</a>, <a class="code" href="namespaceNL3D.html#a144">MeshMultiLodInstanceId</a>, CMeshMultiLodBalancingObs::creator); +00064 CMOT::registerObs (<a class="code" href="namespaceNL3D.html#a25">ClipTravId</a>, <a class="code" href="namespaceNL3D.html#a144">MeshMultiLodInstanceId</a>, CMeshMultiLodClipObs::creator); +00065 } +00066 +00067 +00068 <font class="comment">// ***************************************************************************</font> +<a name="l00069"></a><a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#a3">00069</a> <font class="keywordtype">void</font> CMeshMultiLodInstance::deleteCoarseInstances() +00070 { +00071 <font class="comment">// If at least one coarse instance is created</font> +00072 <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o2">Flags</a> & (<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#s3s1">Coarse0Loaded</a>|<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#s3s2">Coarse1Loaded</a>) ) +00073 { +00074 <font class="comment">// Cast shape</font> +00075 <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#l0">CMeshMultiLod</a> *shape=safe_cast<CMeshMultiLod*> ((IShape*)<a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>); +00076 +00077 <font class="comment">// Manager pointer</font> +00078 CCoarseMeshManager *manager; +00079 +00080 <font class="comment">// Get the manager</font> +00081 <font class="keywordflow">if</font> (shape->isStatic ()) +00082 manager=<a class="code" href="classNL3D_1_1CMeshBaseInstance.html#a1">getScene</a>()->getStaticCoarseMeshManager (); +00083 <font class="keywordflow">else</font> +00084 manager=<a class="code" href="classNL3D_1_1CMeshBaseInstance.html#a1">getScene</a>()->getDynamicCoarseMeshManager (); +00085 +00086 <font class="comment">// Manager ok ?</font> +00087 <font class="keywordflow">if</font> (manager) +00088 { +00089 <font class="comment">// Coarse mesh loaded ?</font> +00090 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o2">Flags</a>&<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#s3s1">Coarse0Loaded</a>) +00091 { +00092 manager->removeMesh (<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o3">CoarseMeshId</a>[0]); +00093 <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o2">Flags</a>&= ~<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#s3s1">Coarse0Loaded</a>; +00094 } +00095 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o2">Flags</a>&<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#s3s2">Coarse1Loaded</a>) +00096 { +00097 manager->removeMesh (<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o3">CoarseMeshId</a>[1]); +00098 <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o2">Flags</a>&= ~<a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#s3s2">Coarse1Loaded</a>; +00099 } +00100 } +00101 } +00102 } +00103 +00104 +00105 <font class="comment">// ***************************************************************************</font> +<a name="l00106"></a><a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#c0">00106</a> CRGBA CMeshMultiLodInstance::getCoarseMeshLighting() +00107 { +00108 CScene *scene= <a class="code" href="classNL3D_1_1CMeshBaseInstance.html#a1">getScene</a>(); +00109 <a class="code" href="debug_8h.html#a6">nlassert</a>(scene); +00110 +00111 <font class="comment">// compute his sun contribution result, and update</font> +00112 CRGBA sunContrib= scene->getSunDiffuse(); +00113 <font class="comment">// simulate/average diffuse lighting over the mesh by dividing diffuse by 2.</font> +00114 sunContrib.modulateFromuiRGBOnly(sunContrib, <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#a4">getLightContribution</a>().SunContribution/2 ); +00115 <font class="comment">// Add Ambient</font> +00116 sunContrib.addRGBOnly(sunContrib, scene->getSunAmbient()); +00117 sunContrib.A= 255; +00118 +00119 <font class="keywordflow">return</font> sunContrib; +00120 } +00121 +00122 +00123 <font class="comment">// ***************************************************************************</font> +<a name="l00124"></a><a class="code" href="classNL3D_1_1CMeshMultiLodClipObs.html#a0">00124</a> <font class="keywordtype">bool</font> CMeshMultiLodClipObs::clip(IBaseClipObs *caller) +00125 { +00126 <font class="comment">// Call Base method. If clipped</font> +00127 <font class="keywordflow">if</font>( !CTransformShapeClipObs::clip(caller) ) +00128 { +00129 <font class="comment">// If the clip is due to a DistMax reason, must delete Coarses instances.</font> +00130 <font class="keywordflow">if</font>(CTransformShapeClipObs::isLastClipDueToDistMax()) +00131 { +00132 CMeshMultiLodInstance *inst= (CMeshMultiLodInstance*)<a class="code" href="classNL3D_1_1IObs.html#m0">Model</a>; +00133 inst->deleteCoarseInstances(); +00134 } +00135 +00136 <font class="comment">// return result of clip</font> +00137 <font class="keywordflow">return</font> <font class="keyword">false</font>; +00138 } +00139 <font class="keywordflow">else</font> +00140 <font class="comment">// return result of clip</font> +00141 <font class="keywordflow">return</font> <font class="keyword">true</font>; +00142 } +00143 +00144 +00145 <font class="comment">// ***************************************************************************</font> +<a name="l00146"></a><a class="code" href="classNL3D_1_1CMeshMultiLodClipObs.html#a1">00146</a> <font class="keywordtype">void</font> CMeshMultiLodClipObs::forceClip(TClipReason clipReason) +00147 { +00148 <font class="comment">// If the clip is due to a DistMax reason, must delete Coarses instances.</font> +00149 <font class="keywordflow">if</font>(clipReason == IBaseClipObs::DistMaxClip) +00150 { +00151 CMeshMultiLodInstance *inst= (CMeshMultiLodInstance*)<a class="code" href="classNL3D_1_1IObs.html#m0">Model</a>; +00152 inst->deleteCoarseInstances(); +00153 } +00154 +00155 <font class="comment">// Call Base method (traverse Sons)</font> +00156 CTransformShapeClipObs::forceClip(clipReason); +00157 } +00158 +00159 +00160 <font class="comment">// ***************************************************************************</font> +00161 +<a name="l00162"></a><a class="code" href="classNL3D_1_1CMeshMultiLodBalancingObs.html#a0">00162</a> <font class="keywordtype">void</font> CMeshMultiLodBalancingObs::traverse(IObs *caller) +00163 { +00164 <font class="comment">// Call previous</font> +00165 CTransformShapeLoadBalancingObs::traverse (caller); +00166 +00167 <font class="comment">// If this is the second pass of LoadBalancing, choose the Lods, according to getNumTrianglesAfterLoadBalancing()</font> +00168 CLoadBalancingTrav *loadTrav= (CLoadBalancingTrav*)<a class="code" href="classNL3D_1_1IObs.html#m1">Trav</a>; +00169 <font class="keywordflow">if</font>(loadTrav->getLoadPass()==1) +00170 { +00171 <font class="comment">// Get a pointer on the model</font> +00172 CMeshMultiLodInstance *model=safe_cast<CMeshMultiLodInstance*> (Model); +00173 +00174 <font class="comment">// Get a pointer on the shape</font> +00175 CMeshMultiLod *shape=safe_cast<CMeshMultiLod*> ((IShape*)model->Shape); +00176 +00177 <font class="comment">// Reset render pass</font> +00178 model->setTransparency(<font class="keyword">false</font>); +00179 model->setOpacity(<font class="keyword">false</font>); +00180 +00181 <font class="comment">// Get the wanted number of polygons</font> +00182 <font class="keywordtype">float</font> polygonCount=model->getNumTrianglesAfterLoadBalancing (); +00183 +00184 <font class="comment">// Look for the good slot</font> +00185 uint meshCount=shape->_MeshVector.size(); +00186 model->Lod0=0; +00187 <font class="keywordflow">if</font> (meshCount>1) +00188 { +00189 <font class="comment">// Look for good i</font> +00190 <font class="keywordflow">while</font> ( polygonCount < shape->_MeshVector[model->Lod0].EndPolygonCount ) +00191 { +00192 model->Lod0++; +00193 <font class="keywordflow">if</font> (model->Lod0==meshCount-1) +00194 <font class="keywordflow">break</font>; +00195 } +00196 } +00197 +00198 <font class="comment">// The slot</font> +00199 CMeshMultiLod::CMeshSlot &slot=shape->_MeshVector[model->Lod0]; +00200 +00201 <font class="comment">// Get the distance with polygon count</font> +00202 <font class="keywordtype">float</font> distance=(polygonCount-slot.B)/slot.A; +00203 +00204 <font class="comment">// Get the final polygon count</font> +00205 <font class="keywordflow">if</font> (slot.MeshGeom) +00206 model->PolygonCountLod0=slot.MeshGeom->getNumTriangles (distance); +00207 +00208 <font class="comment">// Second slot in use ?</font> +00209 model->Lod1=0xffffffff; +00210 +00211 <font class="comment">// The next slot</font> +00212 CMeshMultiLod::CMeshSlot *nextSlot=NULL; +00213 +00214 <font class="comment">// Next slot exist ?</font> +00215 <font class="keywordflow">if</font> (model->Lod0!=meshCount-1) +00216 { +00217 nextSlot=&(shape->_MeshVector[model->Lod0+1]); +00218 } +00219 +00220 <font class="comment">// Max dist before blend</font> +00221 <font class="keywordtype">float</font> startBlend; +00222 <font class="keywordflow">if</font> (nextSlot) +00223 startBlend=slot.DistMax-nextSlot->BlendLength; +00224 <font class="keywordflow">else</font> +00225 startBlend=slot.DistMax-slot.BlendLength; +00226 +00227 <font class="comment">// In blend zone ?</font> +00228 <font class="keywordflow">if</font> ( startBlend < distance ) +00229 { +00230 <font class="comment">// Alpha factor for main Lod</font> +00231 model->BlendFactor = (slot.DistMax-distance)/(slot.DistMax-startBlend); +00232 <font class="keywordflow">if</font> (model->BlendFactor<0) +00233 model->BlendFactor=0; +00234 <a class="code" href="debug_8h.html#a6">nlassert</a> (model->BlendFactor<=1); +00235 +00236 <font class="comment">// Render this mesh</font> +00237 <font class="keywordflow">if</font> (slot.MeshGeom) +00238 { +00239 <font class="keywordflow">if</font> (slot.Flags&CMeshMultiLod::CMeshSlot::BlendOut) +00240 { +00241 <font class="comment">// Render the geom mesh with alpha blending with goodPolyCount</font> +00242 model->setTransparency(<font class="keyword">true</font>); +00243 model->Flags|=CMeshMultiLodInstance::Lod0Blend; +00244 } +00245 <font class="keywordflow">else</font> +00246 { +00247 <font class="comment">// Render the geom mesh without alpha blending with goodPolyCount</font> +00248 model->setTransparency (slot.isTransparent()); +00249 model->setOpacity (slot.isOpaque()); +00250 model->Flags&=~CMeshMultiLodInstance::Lod0Blend; +00251 } +00252 } +00253 <font class="keywordflow">else</font> +00254 model->Lod0=0xffffffff; +00255 +00256 <font class="comment">// Next mesh, BlendIn actived ?</font> +00257 <font class="keywordflow">if</font> (nextSlot && shape->_MeshVector[model->Lod0+1].MeshGeom && (nextSlot->Flags&CMeshMultiLod::CMeshSlot::BlendIn)) +00258 { +00259 <font class="comment">// Render the geom mesh with alpha blending with nextSlot->BeginPolygonCount</font> +00260 model->PolygonCountLod1=nextSlot->MeshGeom->getNumTriangles (distance); +00261 model->Lod1=model->Lod0+1; +00262 model->setTransparency(<font class="keyword">true</font>); +00263 } +00264 } +00265 <font class="keywordflow">else</font> +00266 { +00267 <font class="keywordflow">if</font> (slot.MeshGeom) +00268 { +00269 <font class="comment">// Render without blend with goodPolyCount</font> +00270 model->setTransparency (slot.isTransparent()); +00271 model->setOpacity (slot.isOpaque()); +00272 model->Flags&=~CMeshMultiLodInstance::Lod0Blend; +00273 } +00274 <font class="keywordflow">else</font> +00275 model->Lod0=0xffffffff; +00276 } +00277 } +00278 } +00279 +00280 <font class="comment">// ***************************************************************************</font> +<a name="l00281"></a><a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#a2">00281</a> <font class="keywordtype">void</font> CMeshMultiLodInstance::changeMRMDistanceSetup(<font class="keywordtype">float</font> distanceFinest, <font class="keywordtype">float</font> distanceMiddle, <font class="keywordtype">float</font> distanceCoarsest) +00282 { +00283 <font class="keywordflow">if</font>(Shape) +00284 { +00285 <font class="comment">// Get a pointer on the shape.</font> +00286 <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#l0">CMeshMultiLod</a> *pMesh =safe_cast<CMeshMultiLod*> ((IShape*)<a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>); +00287 <font class="comment">// Affect the mesh directly.</font> +00288 pMesh->changeMRMDistanceSetup(distanceFinest, distanceMiddle, distanceCoarsest); +00289 } +00290 } +00291 +00292 +00293 <font class="comment">// ***************************************************************************</font> +<a name="l00294"></a><a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#a7">00294</a> <font class="keywordtype">float</font> CMeshMultiLodInstance::getNumTriangles (<font class="keywordtype">float</font> distance) +00295 { +00296 <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#l0">CMeshMultiLod</a> *shape = safe_cast<CMeshMultiLod*> ((IShape*)<a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>); +00297 <font class="keywordflow">return</font> shape->getNumTrianglesWithCoarsestDist(distance, <a class="code" href="classNL3D_1_1CMeshMultiLodInstance.html#o7">_CoarseMeshDistance</a>); +00298 } +00299 +00300 } <font class="comment">// NL3D</font> +</pre></div> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |