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| author | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
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| committer | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
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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.cpp</h1><a href="mesh__multi__lod_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_8h.html">3d/mesh_multi_lod.h</a>"</font> +00029 <font class="preprocessor">#include "<a class="code" href="mesh__multi__lod__instance_8h.html">3d/mesh_multi_lod_instance.h</a>"</font> +00030 <font class="preprocessor">#include "<a class="code" href="mesh__instance_8h.html">3d/mesh_instance.h</a>"</font> +00031 <font class="preprocessor">#include "<a class="code" href="mesh__mrm_8h.html">3d/mesh_mrm.h</a>"</font> +00032 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font> +00033 <font class="preprocessor">#include "<a class="code" href="coarse__mesh__manager_8h.html">3d/coarse_mesh_manager.h</a>"</font> +00034 <font class="preprocessor">#include "<a class="code" href="skeleton__model_8h.html">3d/skeleton_model.h</a>"</font> +00035 <font class="preprocessor">#include "<a class="code" href="fast__floor_8h.html">3d/fast_floor.h</a>"</font> +00036 <font class="preprocessor">#include "<a class="code" href="mesh__blender_8h.html">3d/mesh_blender.h</a>"</font> +00037 +00038 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font> +00039 +00040 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC; +00041 +00042 <font class="keyword">namespace </font>NL3D +00043 { +00044 +00045 +00046 +00047 +00048 <font class="comment">// ***************************************************************************</font> +00049 +<a name="l00050"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#z581_0">00050</a> <font class="keywordtype">void</font> CMeshMultiLod::build(CMeshMultiLodBuild &mbuild) +00051 { +00052 <font class="comment">// Clear the mesh</font> +00053 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#c0">clear</a> (); +00054 +00055 <font class="comment">// Build the base mesh</font> +00056 CMeshBase::buildMeshBase (mbuild.BaseMesh); +00057 +00058 <font class="comment">// Static flag</font> +00059 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o0">_StaticLod</a>=mbuild.StaticLod; +00060 +00061 <font class="comment">// Resize the array</font> +00062 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.resize (mbuild.LodMeshes.size()); +00063 +00064 <font class="comment">// Number of coarse meshes</font> +00065 <a class="code" href="types__nl_8h.html#a14">uint</a> coarse=0; +00066 +00067 <font class="comment">// For each slots</font> +00068 <font class="keywordflow">for</font> (<a class="code" href="types__nl_8h.html#a14">uint</a> slot=0; slot<mbuild.LodMeshes.size(); slot++) +00069 { +00070 <font class="comment">// Dist max</font> +00071 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].DistMax=mbuild.LodMeshes[slot].DistMax; +00072 +00073 <font class="comment">// BlendLength</font> +00074 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].BlendLength=mbuild.LodMeshes[slot].BlendLength; +00075 +00076 <font class="comment">// Flags</font> +00077 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags=0; +00078 +00079 <font class="comment">// Blend in ?</font> +00080 <font class="keywordflow">if</font> (mbuild.LodMeshes[slot].Flags & CMeshMultiLodBuild::CBuildSlot::BlendIn) +00081 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags|=CMeshSlot::BlendIn; +00082 +00083 <font class="comment">// Blend out ?</font> +00084 <font class="keywordflow">if</font> (mbuild.LodMeshes[slot].Flags & CMeshMultiLodBuild::CBuildSlot::BlendOut) +00085 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags|=CMeshSlot::BlendOut; +00086 +00087 <font class="comment">// Coarse mesh ?</font> +00088 <font class="keywordflow">if</font> (mbuild.LodMeshes[slot].Flags & CMeshMultiLodBuild::CBuildSlot::CoarseMesh) +00089 { +00090 <font class="comment">// Warning: no more than 2 coarse meshes in a lod mesh!</font> +00091 <a class="code" href="debug_8h.html#a6">nlassert</a> (coarse<=1); +00092 +00093 <font class="comment">// Flag</font> +00094 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags|=CMeshSlot::CoarseMesh; +00095 +00096 <font class="comment">// Flag coarse ID</font> +00097 <font class="keywordflow">if</font> (coarse==1) +00098 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags|=CMeshSlot::CoarseMeshId; +00099 +00100 <font class="comment">// One more</font> +00101 coarse++; +00102 } +00103 +00104 <font class="comment">// Is opaque</font> +00105 <font class="keywordflow">if</font> (mbuild.LodMeshes[slot].Flags & CMeshMultiLodBuild::CBuildSlot::IsOpaque) +00106 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags|=CMeshSlot::IsOpaque; +00107 +00108 <font class="comment">// Is transparent</font> +00109 <font class="keywordflow">if</font> (mbuild.LodMeshes[slot].Flags & CMeshMultiLodBuild::CBuildSlot::IsTransparent) +00110 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags|=CMeshSlot::IsTransparent; +00111 +00112 <font class="comment">// MeshGeom</font> +00113 <a class="code" href="debug_8h.html#a6">nlassert</a> (mbuild.LodMeshes[slot].MeshGeom); +00114 +00115 <font class="comment">// Valid pointer ?</font> +00116 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags&CMeshSlot::CoarseMesh) +00117 { +00118 <font class="comment">// If it is a coarse mesh, it must be a CMeshGeom.</font> +00119 <font class="keywordflow">if</font> (dynamic_cast<CMeshGeom*>(mbuild.LodMeshes[slot].MeshGeom)==NULL) +00120 { +00121 <font class="comment">// If it is a coarse mesh, it must be a CMeshGeom.</font> +00122 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].MeshGeom = NULL; +00123 <font class="keyword">delete</font> mbuild.LodMeshes[slot].MeshGeom; +00124 } +00125 <font class="keywordflow">else</font> +00126 <font class="comment">// Ok, no prb</font> +00127 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].MeshGeom = mbuild.LodMeshes[slot].MeshGeom; +00128 } +00129 <font class="keywordflow">else</font> +00130 <font class="comment">// Ok, no prb</font> +00131 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].MeshGeom = mbuild.LodMeshes[slot].MeshGeom; +00132 } +00133 +00134 <font class="comment">// Sort the slot by the distance...</font> +00135 <font class="keywordflow">for</font> (<font class="keywordtype">int</font> i=mbuild.LodMeshes.size()-1; i>0; i--) +00136 <font class="keywordflow">for</font> (<font class="keywordtype">int</font> j=0; j<i; j++) +00137 { +00138 <font class="comment">// Bad sort ?</font> +00139 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[j].DistMax><a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[j+1].DistMax) +00140 { +00141 <font class="comment">// Exchange slots</font> +00142 CMeshSlot tmp=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[j]; +00143 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[j]=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[j+1]; +00144 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[j+1]=tmp; +00145 tmp.MeshGeom=NULL; +00146 } +00147 } +00148 +00149 <font class="comment">// Calc start and end polygon count</font> +00150 <font class="keywordflow">for</font> (<a class="code" href="types__nl_8h.html#a14">uint</a> k=0; k<mbuild.LodMeshes.size(); k++) +00151 { +00152 <font class="comment">// Get start distance</font> +00153 <font class="keywordtype">float</font> startDist; +00154 <font class="keywordflow">if</font> (k==0) +00155 startDist=0; +00156 <font class="keywordflow">else</font> +00157 startDist=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k-1].DistMax; +00158 +00159 <font class="comment">// Get start poly count</font> +00160 <font class="keywordtype">float</font> startPolyCount; +00161 startPolyCount=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].MeshGeom->getNumTriangles (startDist); +00162 +00163 <font class="comment">// Get end distance</font> +00164 <font class="keywordtype">float</font> endDist=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].DistMax; +00165 +00166 <font class="comment">// Get end poly count</font> +00167 <font class="keywordflow">if</font> (k==mbuild.LodMeshes.size()-1) +00168 { +00169 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].EndPolygonCount=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].MeshGeom->getNumTriangles (endDist); +00170 <font class="keywordflow">if</font> (startPolyCount==<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].EndPolygonCount) +00171 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].EndPolygonCount=startPolyCount/2; +00172 } +00173 <font class="keywordflow">else</font> +00174 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].EndPolygonCount=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k+1].MeshGeom->getNumTriangles (endDist); +00175 +00176 <font class="comment">// Calc A</font> +00177 <font class="keywordflow">if</font> (endDist==startDist) +00178 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].A=0; +00179 <font class="keywordflow">else</font> +00180 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].A=(<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].EndPolygonCount-startPolyCount)/(endDist-startDist); +00181 +00182 <font class="comment">// Calc A</font> +00183 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].B=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].EndPolygonCount-<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[k].A*endDist; +00184 } +00185 +00186 <font class="comment">// End: compile the max distance of display</font> +00187 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#c3">compileDistMax</a>(); +00188 } +00189 +00190 <font class="comment">// ***************************************************************************</font> +00191 +<a name="l00192"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#z582_0">00192</a> CTransformShape *CMeshMultiLod::createInstance(CScene &scene) +00193 { +00194 <font class="comment">// Create a CMeshInstance, an instance of a multi lod mesh.</font> +00195 CMeshMultiLodInstance *mi=(CMeshMultiLodInstance*)scene.createModel(NL3D::MeshMultiLodInstanceId); +00196 mi->Shape= <font class="keyword">this</font>; +00197 mi->_LastLodMatrixDate[0]=0; +00198 mi->_LastLodMatrixDate[1]=0; +00199 +00200 <font class="comment">// instanciate the material part of the Mesh, ie the CMeshBase.</font> +00201 CMeshBase::instanciateMeshBase(mi, &scene); +00202 +00203 +00204 <font class="comment">// For all lods, do some instance init for MeshGeom</font> +00205 <font class="keywordflow">for</font>(<a class="code" href="types__nl_8h.html#a14">uint</a> i=0; i<<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.size(); i++) +00206 { +00207 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[i].MeshGeom) +00208 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[i].MeshGeom->initInstance(mi); +00209 } +00210 +00211 +00212 <font class="keywordflow">return</font> mi; +00213 } +00214 +00215 <font class="comment">// ***************************************************************************</font> +00216 +<a name="l00217"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#z582_1">00217</a> <font class="keywordtype">bool</font> CMeshMultiLod::clip(<font class="keyword">const</font> std::vector<CPlane> &pyramid, <font class="keyword">const</font> CMatrix &worldMatrix) +00218 { +00219 <font class="comment">// Look for the biggest mesh</font> +00220 <a class="code" href="types__nl_8h.html#a14">uint</a> meshCount=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.size(); +00221 <font class="keywordflow">for</font> (<a class="code" href="types__nl_8h.html#a14">uint</a> i=0; i<meshCount; i++) +00222 { +00223 <font class="comment">// Ref on slot</font> +00224 CMeshSlot &slot=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[i]; +00225 +00226 <font class="comment">// Is mesh present ?</font> +00227 <font class="keywordflow">if</font> (slot.MeshGeom) +00228 { +00229 <font class="comment">// Clip this mesh</font> +00230 <font class="keywordflow">return</font> slot.MeshGeom->clip (pyramid, worldMatrix); +00231 } +00232 } +00233 <font class="keywordflow">return</font> <font class="keyword">true</font>; +00234 } +00235 +00236 <font class="comment">// ***************************************************************************</font> +00237 +<a name="l00238"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#z582_2">00238</a> <font class="keywordtype">void</font> CMeshMultiLod::render(IDriver *drv, CTransformShape *trans, <font class="keywordtype">bool</font> passOpaque) +00239 { +00240 <font class="comment">// Render good meshes</font> +00241 CMeshMultiLodInstance *instance=safe_cast<CMeshMultiLodInstance*>(trans); +00242 +00243 <font class="comment">// Static or dynamic coarse mesh ?</font> +00244 CCoarseMeshManager *manager; +00245 <font class="keywordflow">if</font> (_StaticLod) +00246 { +00247 <font class="comment">// Get the static coarse mesh manager</font> +00248 manager=instance->getScene()->getStaticCoarseMeshManager(); +00249 } +00250 <font class="keywordflow">else</font> +00251 { +00252 <font class="comment">// Get the dynamic coarse mesh manager</font> +00253 manager=instance->getScene()->getDynamicCoarseMeshManager(); +00254 } +00255 +00256 <font class="comment">// *** Render Lods</font> +00257 +00258 <font class="comment">// Second lod ?</font> +00259 <font class="keywordflow">if</font> ( (instance->Lod1!=0xffffffff) && (passOpaque==<font class="keyword">false</font>) ) +00260 { +00261 <font class="comment">// build rdrFlags to rdr both transparent and opaque materials, </font> +00262 <font class="comment">// use globalAlphaBlend, and disable ZWrite for Lod1</font> +00263 <a class="code" href="types__nl_8h.html#a10">uint32</a> rdrFlags= IMeshGeom::RenderOpaqueMaterial | IMeshGeom::RenderTransparentMaterial | +00264 IMeshGeom::RenderGlobalAlpha | IMeshGeom::RenderGADisableZWrite; +00265 <font class="comment">// NB: very important to render Lod1 first, because Lod0 is still rendered with ZWrite enabled.</font> +00266 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#c1">renderMeshGeom</a> (instance->Lod1, drv, instance, instance->PolygonCountLod1, rdrFlags, 1.f-instance->BlendFactor, manager); +00267 } +00268 +00269 +00270 <font class="comment">// Have an opaque pass ?</font> +00271 <font class="keywordflow">if</font> ( (instance->Flags&CMeshMultiLodInstance::Lod0Blend) == 0) +00272 { +00273 <font class="comment">// Is this slot a CoarseMesh?</font> +00274 <font class="keywordflow">if</font> ( <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[instance->Lod0].Flags&CMeshSlot::CoarseMesh ) +00275 { +00276 <font class="comment">// render as a CoarseMesh the lod 0, only in opaque pass</font> +00277 <font class="keywordflow">if</font>(passOpaque) +00278 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#c2">renderCoarseMesh</a> (instance->Lod0, drv, instance, manager); +00279 } +00280 <font class="keywordflow">else</font> +00281 { +00282 <font class="comment">// build rdrFlags the normal way (as CMesh::render() for example)</font> +00283 <a class="code" href="types__nl_8h.html#a10">uint32</a> mask= (0-(uint32)passOpaque); +00284 <a class="code" href="types__nl_8h.html#a10">uint32</a> rdrFlags; +00285 <font class="comment">// select rdrFlags, without ifs.</font> +00286 rdrFlags= mask & (IMeshGeom::RenderOpaqueMaterial | IMeshGeom::RenderPassOpaque); +00287 rdrFlags|= ~mask & (IMeshGeom::RenderTransparentMaterial); +00288 <font class="comment">// Only render the normal way the first lod</font> +00289 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#c1">renderMeshGeom</a> (instance->Lod0, drv, instance, instance->PolygonCountLod0, rdrFlags, 1, manager); +00290 } +00291 } +00292 <font class="keywordflow">else</font> +00293 { +00294 <font class="comment">// Should not be in opaque</font> +00295 <a class="code" href="debug_8h.html#a6">nlassert</a> (passOpaque==<font class="keyword">false</font>); +00296 +00297 <font class="comment">// build rdrFlags to rdr both transparent and opaque materials, </font> +00298 <font class="comment">// use globalAlphaBlend, BUT Don't disable ZWrite for Lod0</font> +00299 <a class="code" href="types__nl_8h.html#a10">uint32</a> rdrFlags= IMeshGeom::RenderOpaqueMaterial | IMeshGeom::RenderTransparentMaterial | +00300 IMeshGeom::RenderGlobalAlpha; +00301 +00302 <font class="comment">// Render first lod in blend mode. Don't disable ZWrite for Lod0</font> +00303 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#c1">renderMeshGeom</a> (instance->Lod0, drv, instance, instance->PolygonCountLod0, rdrFlags, instance->BlendFactor, manager); +00304 } +00305 +00306 <font class="comment">// *** Remove unused coarse meshes.</font> +00307 <font class="comment">// Manager must exist beacuse a mesh has been loaded...</font> +00308 <font class="keywordflow">if</font> (manager) +00309 { +00310 <a class="code" href="types__nl_8h.html#a14">uint</a> meshCount=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.size(); +00311 <font class="keywordflow">for</font> (<a class="code" href="types__nl_8h.html#a14">uint</a> j=0; j<meshCount; j++) +00312 { +00313 <font class="comment">// Is this slot a CoarseMesh?</font> +00314 <font class="keywordflow">if</font> ( <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[j].Flags&CMeshSlot::CoarseMesh ) +00315 { +00316 <font class="comment">// Are we in Alpha Blend Transition?</font> +00317 <font class="keywordtype">bool</font> alphaTrans= instance->Flags&CMeshMultiLodInstance::Lod0Blend; +00318 <font class="comment">// we must remove coarse if the slot is not used, or if we are in Alpha Transition.</font> +00319 <font class="comment">// NB: only Lod0 can use CoarseMesh (see code before)</font> +00320 <font class="keywordflow">if</font> ( alphaTrans || (j!=instance->Lod0) ) +00321 { +00322 <font class="comment">// Get coarse id</font> +00323 <a class="code" href="types__nl_8h.html#a14">uint</a> coarseId=(<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[j].Flags&CMeshSlot::CoarseMeshId)?1:0; +00324 <a class="code" href="types__nl_8h.html#a14">uint</a> flag=CMeshMultiLodInstance::Coarse0Loaded<<coarseId; +00325 +00326 <font class="comment">// Coarse mesh loaded ?</font> +00327 <font class="keywordflow">if</font> ( instance->Flags&flag ) +00328 { +00329 <font class="comment">// Yes, remove it..</font> +00330 +00331 <font class="comment">// Remove the lod</font> +00332 manager->removeMesh (instance->CoarseMeshId[coarseId]); +00333 +00334 <font class="comment">// Clear the flag</font> +00335 instance->Flags&=~flag; +00336 } +00337 } +00338 } +00339 } +00340 } +00341 } +00342 +00343 <font class="comment">// ***************************************************************************</font> +00344 +<a name="l00345"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#z582_5">00345</a> <font class="keywordtype">void</font> CMeshMultiLod::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f) <font class="keywordflow">throw</font>(NLMISC::EStream) +00346 { +00347 <font class="comment">// Serial a version number</font> +00348 (void)f.serialVersion (0); +00349 +00350 <font class="comment">// serial Materials infos contained in CMeshBase.</font> +00351 CMeshBase::serialMeshBase(f); +00352 +00353 <font class="comment">// Static lod flag</font> +00354 f.serial (_StaticLod); +00355 +00356 <font class="comment">// Serial the values</font> +00357 f.serialCont (_MeshVector); +00358 +00359 +00360 <font class="comment">// if reading, compile the new max distance of display</font> +00361 <font class="keywordflow">if</font> (f.isReading()) +00362 { +00363 compileDistMax(); +00364 } +00365 } +00366 +00367 <font class="comment">// ***************************************************************************</font> +00368 +<a name="l00369"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#z582_3">00369</a> <font class="keywordtype">float</font> CMeshMultiLod::getNumTriangles (<font class="keywordtype">float</font> distance) +00370 { +00371 <font class="comment">// Look in the table for good distances..</font> +00372 <a class="code" href="types__nl_8h.html#a14">uint</a> meshCount=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.size(); +00373 +00374 <font class="comment">// At least on mesh</font> +00375 <font class="keywordflow">if</font> (meshCount>0) +00376 { +00377 <a class="code" href="types__nl_8h.html#a14">uint</a> i=0; +00378 +00379 <font class="comment">// Look for good i</font> +00380 <font class="keywordflow">while</font> ( <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[i].DistMax<distance ) +00381 { +00382 <font class="keywordflow">if</font> (i==meshCount-1) +00383 <font class="comment">// Abort if last one</font> +00384 <font class="keywordflow">break</font>; +00385 i++; +00386 } +00387 +00388 <font class="comment">// Ref on slot</font> +00389 CMeshSlot &slot=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[i]; +00390 +00391 <font class="comment">// Is mesh present ?</font> +00392 <font class="keywordflow">if</font> (slot.MeshGeom) +00393 { +00394 <font class="comment">// Get the polygon count with the distance</font> +00395 <font class="keywordtype">float</font> polyCount=slot.A * distance + slot.B; +00396 +00397 <font class="comment">/*// Get the perfect polygon count in this slot for the asked distance</font> +00398 <font class="comment"> float goodPolyCount=slot.MeshGeom->getNumTriangles (distance);</font> +00399 <font class="comment"></font> +00400 <font class="comment"> // Get the next slot perfect polygon count</font> +00401 <font class="comment"> float realEndPolyCount;</font> +00402 <font class="comment"></font> +00403 <font class="comment"> // Last slot ?</font> +00404 <font class="comment"> if ( (i<meshCount-1) && _MeshVector[i+1].MeshGeom )</font> +00405 <font class="comment"> // Take end number polygon count in the next slot</font> +00406 <font class="comment"> realEndPolyCount=_MeshVector[i+1].MeshGeom->getNumTriangles (slot.DistMax);</font> +00407 <font class="comment"> else</font> +00408 <font class="comment"> // Take end number polygon count in the this slot</font> +00409 <font class="comment"> realEndPolyCount=slot.EndPolygonCount;</font> +00410 <font class="comment"></font> +00411 <font class="comment"> // Return blended polygon count to have a continous decreasing function</font> +00412 <font class="comment"> return (goodPolyCount-slot.BeginPolygonCount) * (realEndPolyCount-slot.BeginPolygonCount) / </font> +00413 <font class="comment"> (slot.EndPolygonCount-slot.BeginPolygonCount) + slot.BeginPolygonCount;*/</font> +00414 <font class="keywordflow">return</font> polyCount; +00415 } +00416 } +00417 +00418 <font class="keywordflow">return</font> 0; +00419 } +00420 +00421 <font class="comment">// ***************************************************************************</font> +00422 +<a name="l00423"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#z582_4">00423</a> <font class="keywordtype">void</font> CMeshMultiLod::getAABBox(<a class="code" href="classNLMISC_1_1CAABBox.html">NLMISC::CAABBox</a> &bbox)<font class="keyword"> const</font> +00424 <font class="keyword"></font>{ +00425 <font class="comment">// Get count</font> +00426 <a class="code" href="types__nl_8h.html#a14">uint</a> count=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.size(); +00427 <font class="keywordflow">for</font> (<a class="code" href="types__nl_8h.html#a14">uint</a> slot=0; slot<count; slot++) +00428 { +00429 <font class="comment">// Shape ?</font> +00430 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].MeshGeom) +00431 { +00432 <font class="comment">// Get the bounding box</font> +00433 bbox=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].MeshGeom->getBoundingBox().getAABBox(); +00434 +00435 <font class="comment">// ok</font> +00436 <font class="keywordflow">break</font>; +00437 } +00438 } +00439 } +00440 +00441 <font class="comment">// ***************************************************************************</font> +00442 +<a name="l00443"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#c0">00443</a> <font class="keywordtype">void</font> CMeshMultiLod::clear () +00444 { +00445 <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.clear (); +00446 } +00447 +00448 <font class="comment">// ***************************************************************************</font> +00449 +<a name="l00450"></a><a class="code" href="classNL3D_1_1CMeshMultiLod_1_1CMeshSlot.html#a2">00450</a> <font class="keywordtype">void</font> CMeshMultiLod::CMeshSlot::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f) <font class="keywordflow">throw</font>(NLMISC::EStream) +00451 { +00452 <font class="comment">// Check version</font> +00453 (void)f.serialVersion (0); +00454 +00455 f.serialPolyPtr (MeshGeom); +00456 f.serial (A); +00457 f.serial (B); +00458 f.serial (DistMax); +00459 f.serial (EndPolygonCount); +00460 f.serial (BlendLength); +00461 f.serial (Flags); +00462 +00463 <font class="keywordflow">if</font> (f.isReading()) +00464 { +00465 } +00466 } +00467 +00468 <font class="comment">// ***************************************************************************</font> +00469 +<a name="l00470"></a><a class="code" href="classNL3D_1_1CMeshMultiLod_1_1CMeshSlot.html#a0">00470</a> CMeshMultiLod::CMeshSlot::CMeshSlot () +00471 { +00472 <a class="code" href="classNL3D_1_1CMeshMultiLod_1_1CMeshSlot.html#m0">MeshGeom</a>=NULL; +00473 } +00474 +00475 <font class="comment">// ***************************************************************************</font> +00476 +<a name="l00477"></a><a class="code" href="classNL3D_1_1CMeshMultiLod_1_1CMeshSlot.html#a1">00477</a> CMeshMultiLod::CMeshSlot::~CMeshSlot () +00478 { +00479 <font class="keywordflow">if</font> (MeshGeom) +00480 <font class="keyword">delete</font> <a class="code" href="classNL3D_1_1CMeshMultiLod_1_1CMeshSlot.html#m0">MeshGeom</a>; +00481 } +00482 +00483 <font class="comment">// ***************************************************************************</font> +00484 +<a name="l00485"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#c1">00485</a> <font class="keywordtype">void</font> CMeshMultiLod::renderMeshGeom (<a class="code" href="types__nl_8h.html#a14">uint</a> slot, IDriver *drv, CMeshMultiLodInstance *trans, <font class="keywordtype">float</font> numPoylgons, <a class="code" href="types__nl_8h.html#a10">uint32</a> rdrFlags, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a279">alpha</a>, CCoarseMeshManager *manager) +00486 { +00487 <font class="comment">// Ref</font> +00488 CMeshSlot &slotRef=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot]; +00489 +00490 <font class="comment">// MeshGeom exist?</font> +00491 <font class="keywordflow">if</font> (slotRef.MeshGeom) +00492 { +00493 <font class="comment">// NB Here, the meshGeom may still be a coarseMesh, but rendered through CMeshGeom</font> +00494 <font class="keywordflow">if</font>(slotRef.Flags&CMeshSlot::CoarseMesh) +00495 { +00496 <font class="comment">// Render only for opaque material</font> +00497 <font class="keywordflow">if</font>(manager && (rdrFlags & IMeshGeom::RenderOpaqueMaterial) ) +00498 { +00499 <font class="keywordtype">bool</font> gaDisableZWrite= (rdrFlags & IMeshGeom::RenderGADisableZWrite)?<font class="keyword">true</font>:<font class="keyword">false</font>; +00500 +00501 <font class="comment">// Render the CoarseMesh with the manager material</font> +00502 CMaterial &material= manager->getMaterial(); +00503 +00504 <font class="comment">// modulate material for alphaBlend transition</font> +00505 <font class="comment">// ----------</font> +00506 <font class="comment">// get average sun color for this coarseMesh</font> +00507 CRGBA newCol= trans->getCoarseMeshLighting(); +00508 +00509 <font class="comment">// Use a CMeshBlender to modify material and driver.</font> +00510 CMeshBlender blender; +00511 blender.prepareRenderForGlobalAlphaCoarseMesh(material, drv, newCol, <a class="code" href="driver__opengl__extension__def_8h.html#a279">alpha</a>, gaDisableZWrite); +00512 +00513 +00514 <font class="comment">// render simple the coarseMesh</font> +00515 CMeshGeom *meshGeom= safe_cast<CMeshGeom*>(slotRef.MeshGeom); +00516 meshGeom->renderSimpleWithMaterial(drv, trans->getWorldMatrix(), material); +00517 +00518 +00519 <font class="comment">// resetup standard CoarseMeshMaterial material values</font> +00520 <font class="comment">// ----------</font> +00521 <font class="comment">// blender restore</font> +00522 blender.restoreRenderCoarseMesh(material, drv, gaDisableZWrite); +00523 } +00524 } +00525 <font class="keywordflow">else</font> +00526 { +00527 <font class="comment">// Render the geom mesh</font> +00528 <font class="comment">// Disable ZWrite only if in transition and for rendering Lod1</font> +00529 slotRef.MeshGeom->render (drv, trans, numPoylgons, rdrFlags, <a class="code" href="driver__opengl__extension__def_8h.html#a279">alpha</a>); +00530 } +00531 } +00532 } +00533 <font class="comment">// ***************************************************************************</font> +00534 +<a name="l00535"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#c2">00535</a> <font class="keywordtype">void</font> CMeshMultiLod::renderCoarseMesh (<a class="code" href="types__nl_8h.html#a14">uint</a> slot, IDriver *drv, CMeshMultiLodInstance *trans, CCoarseMeshManager *manager) +00536 { +00537 <font class="comment">// if the manager is NULL, quit.</font> +00538 <font class="keywordflow">if</font>(manager==NULL) +00539 <font class="keywordflow">return</font>; +00540 +00541 <font class="comment">// Ref</font> +00542 CMeshSlot &slotRef=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot]; +00543 +00544 <font class="comment">// the slot must be a Coarse mesh</font> +00545 <a class="code" href="debug_8h.html#a6">nlassert</a>(slotRef.Flags&CMeshSlot::CoarseMesh); +00546 +00547 <font class="comment">// Mask</font> +00548 <a class="code" href="types__nl_8h.html#a14">uint</a> coarseId=(slotRef.Flags&CMeshSlot::CoarseMeshId)?1:0; +00549 <a class="code" href="types__nl_8h.html#a14">uint</a> maskFlag = CMeshMultiLodInstance::Coarse0Loaded<<coarseId; +00550 +00551 <font class="comment">// Get a pointer on the geom mesh</font> +00552 CMeshGeom *meshGeom= safe_cast<CMeshGeom*>(slotRef.MeshGeom); +00553 +00554 <font class="comment">// Added in the manager ?</font> +00555 <font class="keywordflow">if</font> ( (trans->Flags&maskFlag) == 0) +00556 { +00557 <font class="comment">// Add to the manager</font> +00558 trans->CoarseMeshId[coarseId]=manager->addMesh (*meshGeom); +00559 +00560 <font class="comment">// Added ?</font> +00561 <font class="keywordflow">if</font> (trans->CoarseMeshId[coarseId]!=CCoarseMeshManager::CantAddCoarseMesh) +00562 <font class="comment">// Flag it</font> +00563 trans->Flags|=maskFlag; +00564 +00565 <font class="comment">// Dirt the matrix</font> +00566 trans->_LastLodMatrixDate[coarseId]=0; +00567 <font class="comment">// Dirt the lighting. NB: period maximum is 255. Hence the -256, to ensure lighting compute now</font> +00568 trans->_LastLodLightingDate[coarseId]= -0x100; +00569 } +00570 +00571 <font class="comment">// Finally loaded ?</font> +00572 <font class="keywordflow">if</font> (trans->Flags&maskFlag) +00573 { +00574 <font class="comment">// Matrix has changed ?</font> +00575 <font class="keywordflow">if</font> ( trans->ITransformable::compareMatrixDate (trans->_LastLodMatrixDate[coarseId]) ) +00576 { +00577 <font class="comment">// Get date</font> +00578 trans->_LastLodMatrixDate[coarseId] = trans->ITransformable::getMatrixDate(); +00579 +00580 <font class="comment">// Set matrix</font> +00581 manager->setMatrixMesh ( trans->CoarseMeshId[coarseId], *meshGeom, trans->getMatrix() ); +00582 } +00583 +00584 <font class="comment">// Lighting: test if must update lighting, according to date of HrcTrav (num of CScene::render() call).</font> +00585 CScene *scene= trans->getScene(); +00586 <font class="keywordflow">if</font>(scene) +00587 { +00588 <a class="code" href="types__nl_8h.html#a11">sint64</a> currentDate= scene->getHrcTrav()->CurrentDate; +00589 <font class="keywordflow">if</font>( trans->_LastLodLightingDate[coarseId] < currentDate - scene->getCoarseMeshLightingUpdate() ) +00590 { +00591 <font class="comment">// reset the date.</font> +00592 trans->_LastLodLightingDate[coarseId]= currentDate; +00593 +00594 <font class="comment">// get average sun color</font> +00595 CRGBA sunContrib= trans->getCoarseMeshLighting(); +00596 +00597 <font class="comment">// Set color</font> +00598 manager->setColorMesh ( trans->CoarseMeshId[coarseId], *meshGeom, sunContrib ); +00599 } +00600 } +00601 } +00602 } +00603 +00604 <font class="comment">// ***************************************************************************</font> +<a name="l00605"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#c3">00605</a> <font class="keywordtype">void</font> CMeshMultiLod::compileDistMax() +00606 { +00607 <font class="comment">// Last element</font> +00608 std::vector<CMeshSlot>::const_iterator ite=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.end(); +00609 ite--; +00610 <font class="keywordflow">if</font> (ite!=<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>.end()) +00611 IShape::_DistMax= ite->DistMax; +00612 <font class="keywordflow">else</font> +00613 IShape::_DistMax= -1; +00614 } +00615 +00616 <font class="comment">// ***************************************************************************</font> +<a name="l00617"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#a0">00617</a> <font class="keyword">const</font> IMeshGeom& CMeshMultiLod::getMeshGeom (<a class="code" href="types__nl_8h.html#a14">uint</a> slot)<font class="keyword"> const</font> +00618 <font class="keyword"></font>{ +00619 <font class="comment">// Checks</font> +00620 <a class="code" href="debug_8h.html#a6">nlassert</a> (slot<<a class="code" href="classNL3D_1_1CMeshMultiLod.html#a1">getNumSlotMesh</a> ()); +00621 +00622 <font class="keywordflow">return</font> *<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].MeshGeom; +00623 } +00624 +00625 +00626 <font class="comment">// ***************************************************************************</font> +<a name="l00627"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#a4">00627</a> <font class="keywordtype">void</font> CMeshMultiLod::changeMRMDistanceSetup(<font class="keywordtype">float</font> distanceFinest, <font class="keywordtype">float</font> distanceMiddle, <font class="keywordtype">float</font> distanceCoarsest) +00628 { +00629 <font class="comment">// no-op if empty.</font> +00630 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CMeshMultiLod.html#a1">getNumSlotMesh</a> ()==0) +00631 <font class="keywordflow">return</font>; +00632 +00633 <font class="comment">// If not NULL</font> +00634 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[0].MeshGeom==NULL) +00635 <font class="keywordflow">return</font>; +00636 +00637 <font class="comment">// verify it is a CMeshMRMGeom. else no-op.</font> +00638 CMeshMRMGeom *mgeom= dynamic_cast<CMeshMRMGeom*>(<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[0].MeshGeom); +00639 <font class="keywordflow">if</font>(mgeom==NULL) +00640 <font class="keywordflow">return</font>; +00641 +00642 <font class="comment">// ok, setup.</font> +00643 mgeom->changeMRMDistanceSetup(distanceFinest, distanceMiddle, distanceCoarsest); +00644 } +00645 +00646 +00647 <font class="comment">// ***************************************************************************</font> +<a name="l00648"></a><a class="code" href="classNL3D_1_1CMeshMultiLod.html#z583_0">00648</a> IMeshGeom *CMeshMultiLod::supportMeshBlockRendering (CTransformShape *trans, <font class="keywordtype">float</font> &polygonCount )<font class="keyword"> const</font> +00649 <font class="keyword"></font>{ +00650 IMeshGeom *ret= NULL; +00651 +00652 <font class="comment">// get the instance</font> +00653 CMeshMultiLodInstance *instance=safe_cast<CMeshMultiLodInstance*>(trans); +00654 +00655 <font class="comment">// Must not be in blend transition.</font> +00656 <font class="keywordflow">if</font> ( (instance->Flags&CMeshMultiLodInstance::Lod0Blend) == 0) +00657 { +00658 <a class="code" href="types__nl_8h.html#a14">uint</a> slot= instance->Lod0; +00659 <font class="comment">// The slot must not be a CoarseMesh</font> +00660 <font class="keywordflow">if</font> ( (<a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].Flags&CMeshSlot::CoarseMesh)==0 ) +00661 { +00662 <font class="comment">// MeshGeom exist?</font> +00663 ret= <a class="code" href="classNL3D_1_1CMeshMultiLod.html#o1">_MeshVector</a>[slot].MeshGeom; +00664 } +00665 } +00666 +00667 <font class="comment">// Ok if meshGeom is ok.</font> +00668 <font class="keywordflow">if</font>( ret && ret->supportMeshBlockRendering() ) +00669 { +00670 polygonCount= instance->PolygonCountLod0; +00671 <font class="keywordflow">return</font> ret; +00672 } +00673 <font class="keywordflow">else</font> +00674 <font class="keywordflow">return</font> NULL; +00675 } +00676 +00677 +00678 } <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> |