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<hr><h1>transform_shape.cpp</h1><a href="transform__shape_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000 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="hierarchical__timer_8h.html">nel/misc/hierarchical_timer.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="transform__shape_8h.html">3d/transform_shape.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="skeleton__model_8h.html">3d/skeleton_model.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="mesh__base__instance_8h.html">3d/mesh_base_instance.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="clip__trav_8h.html">3d/clip_trav.h</a>"</font>
00035 <font class="preprocessor">#include "<a class="code" href="render__trav_8h.html">3d/render_trav.h</a>"</font>
00036 <font class="preprocessor">#include "<a class="code" href="load__balancing__trav_8h.html">3d/load_balancing_trav.h</a>"</font>
00037
<a name="l00038"></a><a class="code" href="transform__shape_8cpp.html#a0">00038</a> <font class="preprocessor">#define NL3D_MEM_INSTANCE NL_ALLOC_CONTEXT( 3dInst )</font>
00039 <font class="preprocessor"></font>
00040 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00041
00042
00043 <font class="keyword">namespace </font>NL3D
00044 {
00045
00046
00047 <font class="comment">// ***************************************************************************</font>
<a name="l00048"></a><a class="code" href="classNL3D_1_1CTransformShape.html#d0">00048</a> <font class="keywordtype">void</font> CTransformShape::registerBasic()
00049 {
00050 CMOT::registerModel(<a class="code" href="namespaceNL3D.html#a277">TransformShapeId</a>, <a class="code" href="namespaceNL3D.html#a276">TransformId</a>, CTransformShape::creator);
00051 CMOT::registerObs(<a class="code" href="namespaceNL3D.html#a25">ClipTravId</a>, <a class="code" href="namespaceNL3D.html#a277">TransformShapeId</a>, CTransformShapeClipObs::creator);
00052 CMOT::registerObs(<a class="code" href="namespaceNL3D.html#a232">RenderTravId</a>, <a class="code" href="namespaceNL3D.html#a277">TransformShapeId</a>, CTransformShapeRenderObs::creator);
00053 CMOT::registerObs(<a class="code" href="namespaceNL3D.html#a93">LoadBalancingTravId</a>, <a class="code" href="namespaceNL3D.html#a277">TransformShapeId</a>, CTransformShapeLoadBalancingObs::creator);
00054 }
00055
00056
00057 <font class="comment">// ***************************************************************************</font>
<a name="l00058"></a><a class="code" href="classNL3D_1_1CTransformShape.html#b0">00058</a> CTransformShape::CTransformShape()
00059 {
00060 <a class="code" href="classNL3D_1_1CTransformShape.html#o0">_NumTrianglesAfterLoadBalancing</a>= 100;
00061 <a class="code" href="classNL3D_1_1CTransformShape.html#o1">_CurrentLightContribution</a>= NULL;
00062 <a class="code" href="classNL3D_1_1CTransformShape.html#o2">_CurrentUseLocalAttenuation</a>= <font class="keyword">false</font>;
00063 <a class="code" href="classNL3D_1_1CTransformShape.html#o3">_DistMax</a> = -1.f;
00064 <font class="comment">// By default all transformShape are LoadBalancable</font>
00065 CTransform::setIsLoadbalancable(<font class="keyword">true</font>);
00066
00067 <font class="comment">// The model is renderable</font>
00068 CTransform::setIsRenderable(<font class="keyword">true</font>);
00069 }
00070
00071
00072 <font class="comment">// ***************************************************************************</font>
<a name="l00073"></a><a class="code" href="classNL3D_1_1CTransformShape.html#z857_0">00073</a> <font class="keywordtype">float</font> CTransformShape::getNumTriangles (<font class="keywordtype">float</font> distance)
00074 {
00075 <font class="comment">// Call shape method</font>
00076 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>->getNumTriangles (distance);
00077 }
00078
00079
00080 <font class="comment">// ***************************************************************************</font>
<a name="l00081"></a><a class="code" href="classNL3D_1_1CTransformShape.html#a0">00081</a> <font class="keywordtype">void</font> CTransformShape::getAABBox(<a class="code" href="classNLMISC_1_1CAABBox.html">NLMISC::CAABBox</a> &bbox)<font class="keyword"> const</font>
00082 <font class="keyword"></font>{
00083 <font class="keywordflow">if</font>(Shape)
00084 {
00085 <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>->getAABBox(bbox);
00086 }
00087 <font class="keywordflow">else</font>
00088 {
00089 bbox.<a class="code" href="classNLMISC_1_1CAABBox.html#z263_0">setCenter</a>(CVector::Null);
00090 bbox.<a class="code" href="classNLMISC_1_1CAABBox.html#z263_1">setHalfSize</a>(CVector::Null);
00091 }
00092 }
00093
00094
00095 <font class="comment">// ***************************************************************************</font>
<a name="l00096"></a><a class="code" href="classNL3D_1_1CTransformShape.html#b2">00096</a> <font class="keywordtype">void</font> CTransformShape::setupCurrentLightContribution(CLightContribution *lightContrib, <font class="keywordtype">bool</font> useLocalAtt)
00097 {
00098 <a class="code" href="classNL3D_1_1CTransformShape.html#o1">_CurrentLightContribution</a>= lightContrib;
00099 <a class="code" href="classNL3D_1_1CTransformShape.html#o2">_CurrentUseLocalAttenuation</a>= useLocalAtt;
00100 }
00101
00102 <font class="comment">// ***************************************************************************</font>
<a name="l00103"></a><a class="code" href="classNL3D_1_1CTransformShape.html#z858_0">00103</a> <font class="keywordtype">void</font> CTransformShape::changeLightSetup(CRenderTrav *rdrTrav)
00104 {
00105 <font class="comment">// setup the instance lighting.</font>
00106 rdrTrav->changeLightSetup(<a class="code" href="classNL3D_1_1CTransformShape.html#o1">_CurrentLightContribution</a>, <a class="code" href="classNL3D_1_1CTransformShape.html#o2">_CurrentUseLocalAttenuation</a>);
00107 }
00108
00109
00110 <font class="comment">// ***************************************************************************</font>
<a name="l00111"></a><a class="code" href="classNL3D_1_1CTransformShape.html#a1">00111</a> uint CTransformShape::getNumMaterial ()<font class="keyword"> const</font>
00112 <font class="keyword"></font>{
00113 <font class="keywordflow">return</font> 0;
00114 }
00115
00116
00117 <font class="comment">// ***************************************************************************</font>
<a name="l00118"></a><a class="code" href="classNL3D_1_1CTransformShape.html#a2">00118</a> <font class="keyword">const</font> CMaterial *CTransformShape::getMaterial (uint materialId)<font class="keyword"> const</font>
00119 <font class="keyword"></font>{
00120 <font class="keywordflow">return</font> NULL;
00121 }
00122
00123
00124 <font class="comment">// ***************************************************************************</font>
<a name="l00125"></a><a class="code" href="classNL3D_1_1CTransformShape.html#a3">00125</a> CMaterial *CTransformShape::getMaterial (uint materialId)
00126 {
00127 <font class="keywordflow">return</font> NULL;
00128 }
00129
00130
00131 <font class="comment">// ***************************************************************************</font>
<a name="l00132"></a><a class="code" href="classNL3D_1_1CTransformShapeClipObs.html#a0">00132</a> <font class="keywordtype">bool</font> CTransformShapeClipObs::clip(IBaseClipObs *caller)
00133 {
00134 CClipTrav *trav= (CClipTrav*)<a class="code" href="classNL3D_1_1IObs.html#m1">Trav</a>;
00135 CTransformShape *m= (CTransformShape*)<a class="code" href="classNL3D_1_1IObs.html#m0">Model</a>;
00136
00137 <font class="comment">// reset</font>
00138 <a class="code" href="classNL3D_1_1CTransformShapeClipObs.html#o0">_ClipDueToDistMax</a>= <font class="keyword">false</font>;
00139
00140 <font class="keywordflow">if</font>(m->Shape)
00141 {
00142 <font class="comment">// first test DistMax (faster).</font>
00143 <font class="keywordtype">float</font> maxDist = m->getDistMax();
00144 <font class="comment">// if DistMax test enabled</font>
00145 <font class="keywordflow">if</font>(maxDist!=-1)
00146 {
00147 <font class="comment">// Calc the distance</font>
00148 <font class="keywordtype">float</font> sqrDist = (trav->CamPos - m->getMatrix().getPos()).sqrnorm ();
00149 maxDist*=maxDist;
00150
00151 <font class="comment">// if dist > maxDist, skip</font>
00152 <font class="keywordflow">if</font> (sqrDist > maxDist)
00153 {
00154 <font class="comment">// flag this state</font>
00155 <a class="code" href="classNL3D_1_1CTransformShapeClipObs.html#o0">_ClipDueToDistMax</a>= <font class="keyword">true</font>;
00156 <font class="comment">// Ok, not shown</font>
00157 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00158 }
00159 }
00160
00161 <font class="comment">// Else finer clip with pyramid, only if needed</font>
00162 <font class="keywordflow">if</font>(trav->ForceNoFrustumClip)
00163 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00164 <font class="keywordflow">else</font>
00165 <font class="keywordflow">return</font> m->Shape->clip(trav->WorldPyramid, <a class="code" href="classNL3D_1_1IBaseClipObs.html#m0">HrcObs</a>->WorldMatrix);
00166 }
00167 <font class="keywordflow">else</font>
00168 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00169 }
00170
00171
00172 <font class="comment">// ***************************************************************************</font>
<a name="l00173"></a><a class="code" href="classNL3D_1_1CTransformShapeRenderObs.html#a0">00173</a> <font class="keywordtype">void</font> CTransformShapeRenderObs::traverse(IObs *caller)
00174 {
00175 <a class="code" href="transform__shape_8cpp.html#a0">NL3D_MEM_INSTANCE</a>
00176 <a class="code" href="hierarchical__timer_8h.html#a4">H_AUTO</a>( NL3D_TrShape_Render );
00177
00178 CTransformShape *m= (CTransformShape*)<a class="code" href="classNL3D_1_1IObs.html#m0">Model</a>;
00179
00180
00181 <font class="comment">// Compute the current lighting setup for this instance</font>
00182 <font class="comment">//===================</font>
00183
00184 <font class="comment">// if the transform is lightable (ie not a fully lightmaped model), setup lighting</font>
00185 <font class="keywordflow">if</font>(m->isLightable())
00186 {
00187 <font class="comment">// useLocalAttenuation for this shape ??</font>
00188 <font class="keywordflow">if</font>(m->Shape)
00189 m->_CurrentUseLocalAttenuation= m->Shape->useLightingLocalAttenuation ();
00190 <font class="keywordflow">else</font>
00191 m->_CurrentUseLocalAttenuation= <font class="keyword">false</font>;
00192
00193 <font class="comment">// Get HrcObs.</font>
00194 CTransformHrcObs *hrcObs= (CTransformHrcObs*)<a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>;
00195
00196 <font class="comment">// the std case is to take my model lightContribution</font>
00197 <font class="keywordflow">if</font>(hrcObs->_AncestorSkeletonModel==NULL)
00198 m->_CurrentLightContribution= &m->getLightContribution();
00199 <font class="comment">// but if skinned/sticked (directly or not) to a skeleton, take its.</font>
00200 <font class="keywordflow">else</font>
00201 m->_CurrentLightContribution= &hrcObs->_AncestorSkeletonModel->getLightContribution();
00202 }
00203 <font class="comment">// else must disable the lightSetup</font>
00204 <font class="keywordflow">else</font>
00205 {
00206 <font class="comment">// setting NULL will disable all lights</font>
00207 m->_CurrentLightContribution= NULL;
00208 m->_CurrentUseLocalAttenuation= <font class="keyword">false</font>;
00209 }
00210
00211
00212 <font class="comment">// render the shape.</font>
00213 <font class="comment">//=================</font>
00214 <font class="keywordflow">if</font>(m->Shape)
00215 {
00216 CRenderTrav *rdrTrav= (CRenderTrav*)<a class="code" href="classNL3D_1_1IObs.html#m1">Trav</a>;
00217 <font class="keywordtype">bool</font> currentPassOpaque= rdrTrav->isCurrentPassOpaque();
00218
00219 <font class="comment">// shape must be rendered in a CMeshBlockManager ??</font>
00220 <font class="keywordtype">float</font> polygonCount;
00221 IMeshGeom *meshGeom= NULL;
00222 <font class="comment">// true only if in pass opaque</font>
00223 <font class="keywordflow">if</font>( currentPassOpaque )
00224 meshGeom= m->Shape->supportMeshBlockRendering(m, polygonCount);
00225
00226 <font class="comment">// if ok, add the meshgeom to the block manager.</font>
00227 <font class="keywordflow">if</font>(meshGeom)
00228 {
00229 CMeshBaseInstance *inst= safe_cast<CMeshBaseInstance*>(m);
00230 rdrTrav->MeshBlockManager.addInstance(meshGeom, inst, polygonCount);
00231 }
00232 <font class="comment">// else render it.</font>
00233 <font class="keywordflow">else</font>
00234 {
00235 <font class="comment">// setup the lighting</font>
00236 m->changeLightSetup( rdrTrav );
00237
00238 <font class="comment">// render the shape.</font>
00239 IDriver *drv= rdrTrav->getDriver();
00240 m->Shape->render( drv, m, currentPassOpaque );
00241 }
00242 }
00243 }
00244
00245
00246 <font class="comment">// ***************************************************************************</font>
<a name="l00247"></a><a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#a0">00247</a> <font class="keywordtype">void</font> CTransformShapeLoadBalancingObs::traverse(IObs *caller)
00248 {
00249 CLoadBalancingTrav *loadTrav= (CLoadBalancingTrav*)<a class="code" href="classNL3D_1_1IObs.html#m1">Trav</a>;
00250 <font class="keywordflow">if</font>(loadTrav->getLoadPass()==0)
00251 <a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#b0">traversePass0</a>();
00252 <font class="keywordflow">else</font>
00253 <a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#b1">traversePass1</a>();
00254
00255 <font class="comment">// There is no reason to do a hierarchy for LoadBalancing. => no traverseSons()</font>
00256 }
00257
00258
00259
00260 <font class="comment">// ***************************************************************************</font>
<a name="l00261"></a><a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#b0">00261</a> <font class="keywordtype">void</font> CTransformShapeLoadBalancingObs::traversePass0()
00262 {
00263 CLoadBalancingTrav *loadTrav= (CLoadBalancingTrav*)<a class="code" href="classNL3D_1_1IObs.html#m1">Trav</a>;
00264 CTransformShape *trans= static_cast<CTransformShape*>(Model);
00265 CSkeletonModel *skeleton= trans->getSkeletonModel();
00266
00267 <font class="comment">// World Model position</font>
00268 <font class="keyword">const</font> CVector *modelPos;
00269
00270 <font class="comment">// If this isntance is binded or skinned to a skeleton, take the world matrix of this one as</font>
00271 <font class="comment">// center for LoadBalancing Resolution.</font>
00272 <font class="keywordflow">if</font>(skeleton)
00273 {
00274 <font class="comment">// Take the root bone of the skeleton as reference (bone 0)</font>
00275 <font class="comment">// And so get our position.</font>
00276 modelPos= &skeleton->Bones[0].getWorldMatrix().getPos();
00277 }
00278 <font class="keywordflow">else</font>
00279 {
00280 <font class="comment">// get our position from </font>
00281 modelPos= &<a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m0">HrcObs</a>->WorldMatrix.getPos();
00282 }
00283
00284
00285 <font class="comment">// Then compute distance from camera.</font>
00286 <font class="keywordtype">float</font> modelDist= ( loadTrav->CamPos - *modelPos).norm();
00287
00288
00289 <font class="comment">// Get the number of triangles this model use now.</font>
00290 <a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#n0">_FaceCount</a>= trans->getNumTriangles(modelDist);
00291 <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m2">LoadBalancingGroup</a>->addNbFacesPass0(<a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#n0">_FaceCount</a>);
00292 }
00293
00294
00295 <font class="comment">// ***************************************************************************</font>
<a name="l00296"></a><a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#b1">00296</a> <font class="keywordtype">void</font> CTransformShapeLoadBalancingObs::traversePass1()
00297 {
00298 CTransformShape *trans= static_cast<CTransformShape*>(Model);
00299
00300
00301 <font class="comment">// Set the result into the isntance.</font>
00302 trans->_NumTrianglesAfterLoadBalancing= <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m2">LoadBalancingGroup</a>->computeModelNbFace(<a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#n0">_FaceCount</a>);
00303
00304 }
00305
00306
00307 } <font class="comment">// NL3D</font>
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