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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>-&gt;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> &amp;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>-&gt;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-&gt;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-&gt;Shape)
00141         {
00142                 <font class="comment">// first test DistMax (faster).</font>
00143                 <font class="keywordtype">float</font> maxDist = m-&gt;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-&gt;CamPos - m-&gt;getMatrix().getPos()).sqrnorm ();
00149                         maxDist*=maxDist;
00150                         
00151                         <font class="comment">// if dist &gt; maxDist, skip</font>
00152                         <font class="keywordflow">if</font> (sqrDist &gt; 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-&gt;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-&gt;Shape-&gt;clip(trav-&gt;WorldPyramid, <a class="code" href="classNL3D_1_1IBaseClipObs.html#m0">HrcObs</a>-&gt;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-&gt;isLightable())
00186         {
00187                 <font class="comment">// useLocalAttenuation for this shape ??</font>
00188                 <font class="keywordflow">if</font>(m-&gt;Shape)
00189                         m-&gt;_CurrentUseLocalAttenuation= m-&gt;Shape-&gt;useLightingLocalAttenuation ();
00190                 <font class="keywordflow">else</font>
00191                         m-&gt;_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-&gt;_AncestorSkeletonModel==NULL)
00198                         m-&gt;_CurrentLightContribution= &amp;m-&gt;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-&gt;_CurrentLightContribution= &amp;hrcObs-&gt;_AncestorSkeletonModel-&gt;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-&gt;_CurrentLightContribution= NULL;
00208                 m-&gt;_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-&gt;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-&gt;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-&gt;Shape-&gt;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&lt;CMeshBaseInstance*&gt;(m);
00230                         rdrTrav-&gt;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-&gt;changeLightSetup( rdrTrav );
00237 
00238                         <font class="comment">// render the shape.</font>
00239                         IDriver                         *drv= rdrTrav-&gt;getDriver();
00240                         m-&gt;Shape-&gt;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-&gt;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. =&gt; 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&lt;CTransformShape*&gt;(Model);
00265         CSkeletonModel                  *skeleton= trans-&gt;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= &amp;skeleton-&gt;Bones[0].getWorldMatrix().getPos();
00277         }
00278         <font class="keywordflow">else</font>
00279         {
00280                 <font class="comment">// get our position from </font>
00281                 modelPos= &amp;<a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m0">HrcObs</a>-&gt;WorldMatrix.getPos();
00282         }
00283 
00284 
00285         <font class="comment">// Then compute distance from camera.</font>
00286         <font class="keywordtype">float</font>   modelDist= ( loadTrav-&gt;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-&gt;getNumTriangles(modelDist);  
00291         <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m2">LoadBalancingGroup</a>-&gt;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&lt;CTransformShape*&gt;(Model);
00299 
00300 
00301         <font class="comment">// Set the result into the isntance.</font>
00302         trans-&gt;_NumTrianglesAfterLoadBalancing= <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m2">LoadBalancingGroup</a>-&gt;computeModelNbFace(<a class="code" href="classNL3D_1_1CTransformShapeLoadBalancingObs.html#n0">_FaceCount</a>);
00303 
00304 }
00305 
00306 
00307 } <font class="comment">// NL3D</font>
</pre></div>

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