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| author | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
|---|---|---|
| committer | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
| commit | 0ea5fc66924303d1bf73ba283a383e2aadee02f2 (patch) | |
| tree | 2568e71a7ccc44ec23b8bb3f0ff97fb6bf2ed709 /docs/doxygen/nel/patchuv__locator_8cpp-source.html | |
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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>patchuv_locator.cpp</h1><a href="patchuv__locator_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="patchuv__locator_8h.html">3d/patchuv_locator.h</a>"</font> +00029 +00030 <font class="keyword">using</font> <font class="keyword">namespace </font>std; +00031 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC; +00032 +00033 <font class="keyword">namespace </font>NL3D +00034 { +00035 +00036 +00037 <font class="comment">// ***************************************************************************</font> +<a name="l00038"></a><a class="code" href="classNL3D_1_1CPatchUVLocator.html#a0">00038</a> <font class="keywordtype">void</font> CPatchUVLocator::build(<font class="keyword">const</font> CPatch *patchCenter, sint edgeCenter, CPatch::CBindInfo &bindInfo) +00039 { +00040 <a class="code" href="debug_8h.html#a6">nlassert</a>(bindInfo.Zone); +00041 <font class="comment">// copy basic. NB: NPatchs==0 means patchCenter is binded on a 1/X patch.</font> +00042 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o0">_CenterPatch</a>= const_cast<CPatch*>(patchCenter); +00043 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o1">_CenterPatchEdge</a>= edgeCenter; +00044 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>= bindInfo.NPatchs; +00045 +00046 +00047 <font class="comment">// set it to true. false-d if one of the neighbor patch does not have same number of tile.</font> +00048 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o5">_SameEdgeOrder</a>= <font class="keyword">true</font>; +00049 +00050 +00051 <font class="comment">// For all patchs binded to me.</font> +00052 <font class="keywordflow">for</font>(sint i=0; i<<a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>; i++) +00053 { +00054 <font class="comment">// The edge of the neihbor on which we are binded.</font> +00055 sint edgeNeighbor= bindInfo.Edge[i]; +00056 CPatch *paNeighbor= bindInfo.Next[i]; +00057 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o3">_NeighborPatch</a>[i]= paNeighbor; +00058 +00059 +00060 <font class="comment">// Find uvI, uvJ, uvP such that: </font> +00061 <font class="comment">// uvOut= uvIn.x * uvI + uvIn.y * uvJ + uvP.</font> +00062 CVector2f &uvI= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o4">_NeighborBasis</a>[i].<a class="code" href="structNL3D_1_1CPatchUVLocator_1_1CUVBasis.html#m0">UvI</a>; +00063 CVector2f &uvJ= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o4">_NeighborBasis</a>[i].<a class="code" href="structNL3D_1_1CPatchUVLocator_1_1CUVBasis.html#m1">UvJ</a>; +00064 CVector2f &uvP= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o4">_NeighborBasis</a>[i].<a class="code" href="structNL3D_1_1CPatchUVLocator_1_1CUVBasis.html#m2">UvP</a>; +00065 +00066 +00067 <font class="comment">// Find the basis MeToNeighbor.</font> +00068 <font class="comment">//=============================</font> +00069 sint rotation= (edgeCenter - edgeNeighbor + 4) & 3; +00070 <font class="comment">// Find scale to apply.</font> +00071 <font class="keywordtype">float</font> scX, scY; +00072 <font class="comment">// If our neighbor edge is a vertical edge</font> +00073 <font class="keywordflow">if</font>( (edgeNeighbor&1)==0 ) +00074 { +00075 scX= 1; +00076 +00077 <font class="comment">// Manage difference of Order at the edge.</font> +00078 scY= (float)paNeighbor->getOrderForEdge(edgeNeighbor) / (float)patchCenter->getOrderForEdge(edgeCenter); +00079 <font class="comment">// Manage bind on the edge.</font> +00080 <font class="comment">// If patchCenter is binded on a bigger</font> +00081 <font class="keywordflow">if</font>(bindInfo.MultipleBindNum!=0) +00082 scY/= bindInfo.MultipleBindNum; +00083 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>>1) +00084 scY*= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>; +00085 <font class="comment">// same TileOrder on the edge??</font> +00086 <font class="keywordflow">if</font>(scY!=1) +00087 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o5">_SameEdgeOrder</a>= <font class="keyword">false</font>; +00088 } +00089 <font class="keywordflow">else</font> +00090 { +00091 scY= 1; +00092 +00093 <font class="comment">// Manage difference of Order at the edge.</font> +00094 scX= (float)paNeighbor->getOrderForEdge(edgeNeighbor) / (float)patchCenter->getOrderForEdge(edgeCenter); +00095 <font class="comment">// Manage bind on the edge.</font> +00096 <font class="comment">// If patchCenter is binded on a bigger</font> +00097 <font class="keywordflow">if</font>(bindInfo.MultipleBindNum!=0) +00098 scX/= bindInfo.MultipleBindNum; +00099 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>>1) +00100 scX*= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>; +00101 <font class="comment">// same TileOrder on the edge??</font> +00102 <font class="keywordflow">if</font>(scX!=1) +00103 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o5">_SameEdgeOrder</a>= <font class="keyword">false</font>; +00104 } +00105 <font class="comment">// Find rotation to apply.</font> +00106 <font class="keywordflow">switch</font>(rotation) +00107 { +00108 <font class="keywordflow">case</font> 0: uvI.set(-scX, 0); uvJ.set(0, -scY); <font class="keywordflow">break</font>; +00109 <font class="keywordflow">case</font> 1: uvI.set(0, -scY); uvJ.set(scX, 0); <font class="keywordflow">break</font>; +00110 <font class="keywordflow">case</font> 2: uvI.set(scX, 0); uvJ.set(0, scY); <font class="keywordflow">break</font>; +00111 <font class="keywordflow">case</font> 3: uvI.set(0, scY); uvJ.set(-scX, 0); <font class="keywordflow">break</font>; +00112 } +00113 +00114 +00115 <font class="comment">// Find the position.</font> +00116 <font class="comment">//=============================</font> +00117 <font class="comment">// Find the uv coord at start of the edge, for 2 patchs.</font> +00118 CVector2f uvCenter; +00119 CVector2f uvNeighbor; +00120 <font class="keywordtype">float</font> decal; +00121 +00122 <font class="comment">// find the uv at start of edgeCenter, + decal due to bind 1/X.</font> +00123 <font class="keywordtype">float</font> ocS= patchCenter->getOrderS(); +00124 <font class="keywordtype">float</font> ocT= patchCenter->getOrderT(); +00125 <font class="comment">// Manage Bind 1/X.</font> +00126 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>>1) +00127 { +00128 <font class="comment">// Move uvCenter, so it is near the position at start of edgeNeighbor.</font> +00129 decal= (float)i / <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>; +00130 } +00131 <font class="keywordflow">else</font> +00132 decal= 0; +00133 <font class="comment">// Manage rotation.</font> +00134 <font class="keywordflow">switch</font>(edgeCenter) +00135 { +00136 <font class="keywordflow">case</font> 0: uvCenter.set(0, decal*ocT); <font class="keywordflow">break</font>; +00137 <font class="keywordflow">case</font> 1: uvCenter.set(decal*ocS, ocT); <font class="keywordflow">break</font>; +00138 <font class="keywordflow">case</font> 2: uvCenter.set(ocS, (1-decal)*ocT); <font class="keywordflow">break</font>; +00139 <font class="keywordflow">case</font> 3: uvCenter.set((1-decal)*ocS, 0); <font class="keywordflow">break</font>; +00140 }; +00141 +00142 <font class="comment">// find the uv at start of edgeNeighbor, + decal due to bind X/1.</font> +00143 <font class="keywordtype">float</font> onS= paNeighbor->getOrderS(); +00144 <font class="keywordtype">float</font> onT= paNeighbor->getOrderT(); +00145 <font class="comment">// Manage Bind X/1.</font> +00146 <font class="keywordflow">if</font>(bindInfo.MultipleBindNum!=0) +00147 { +00148 <font class="comment">// Must invert the id, because of mirror.... (make a draw).</font> +00149 sint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>= (bindInfo.MultipleBindNum-1) - bindInfo.MultipleBindId; +00150 <font class="comment">// Move uvNeighbor, so it is near the position at start of edgeCenter.</font> +00151 decal= (float)<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a> / bindInfo.MultipleBindNum; +00152 } +00153 <font class="keywordflow">else</font> +00154 decal= 0; +00155 <font class="comment">// Manage rotation.</font> +00156 <font class="keywordflow">switch</font>(edgeNeighbor) +00157 { +00158 <font class="keywordflow">case</font> 0: uvNeighbor.set(0, (1-decal)*onT); <font class="keywordflow">break</font>; +00159 <font class="keywordflow">case</font> 1: uvNeighbor.set((1-decal)*onS, onT); <font class="keywordflow">break</font>; +00160 <font class="keywordflow">case</font> 2: uvNeighbor.set(onS, decal*onT); <font class="keywordflow">break</font>; +00161 <font class="keywordflow">case</font> 3: uvNeighbor.set(decal*onS, 0); <font class="keywordflow">break</font>; +00162 }; +00163 +00164 +00165 +00166 <font class="comment">// uvOut= uvIn.x * uvI + uvIn.y * uvJ + uvP.</font> +00167 <font class="comment">// So uvP = uvOut - uvIn.x * uvI - uvIn.y * uvJ</font> +00168 uvP= uvNeighbor - uvCenter.x * uvI - uvCenter.y * uvJ; +00169 +00170 } +00171 } +00172 +00173 +00174 <font class="comment">// ***************************************************************************</font> +<a name="l00175"></a><a class="code" href="classNL3D_1_1CPatchUVLocator.html#a1">00175</a> uint CPatchUVLocator::selectPatch(<font class="keyword">const</font> CVector2f &uvIn) +00176 { +00177 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>==1) +00178 <font class="keywordflow">return</font> 0; +00179 <font class="keywordflow">else</font> +00180 { +00181 <font class="comment">// Choice before on which patch we must go.</font> +00182 <font class="keywordtype">float</font> selection=0.0; +00183 uint os= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o0">_CenterPatch</a>->getOrderS(); +00184 uint ot= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o0">_CenterPatch</a>->getOrderT(); +00185 <font class="keywordflow">switch</font>(_CenterPatchEdge) +00186 { +00187 <font class="keywordflow">case</font> 0: selection= uvIn.y / ot; <font class="keywordflow">break</font>; +00188 <font class="keywordflow">case</font> 1: selection= uvIn.x / os; <font class="keywordflow">break</font>; +00189 <font class="keywordflow">case</font> 2: selection= (ot-uvIn.y) / ot; <font class="keywordflow">break</font>; +00190 <font class="keywordflow">case</font> 3: selection= (os-uvIn.x) / os; <font class="keywordflow">break</font>; +00191 } +00192 +00193 sint sel= (sint)floor(selection*<a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>); +00194 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(sel, 0, <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>-1); +00195 +00196 <font class="keywordflow">return</font> sel; +00197 } +00198 } +00199 +00200 +00201 <font class="comment">// ***************************************************************************</font> +<a name="l00202"></a><a class="code" href="classNL3D_1_1CPatchUVLocator.html#a2">00202</a> <font class="keywordtype">void</font> CPatchUVLocator::locateUV(<font class="keyword">const</font> CVector2f &uvIn, uint patch, CPatch *&patchOut, CVector2f &uvOut) +00203 { +00204 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CPatchUVLocator.html#o2">_NPatchs</a>==1) +00205 { +00206 <font class="comment">// Change basis and select good patch.</font> +00207 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o4">_NeighborBasis</a>[0].<a class="code" href="structNL3D_1_1CPatchUVLocator_1_1CUVBasis.html#a0">mulPoint</a>(uvIn, uvOut); +00208 patchOut= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o3">_NeighborPatch</a>[0]; +00209 } +00210 <font class="keywordflow">else</font> +00211 { +00212 <font class="comment">// Change basis and select good patch.</font> +00213 <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o4">_NeighborBasis</a>[patch].<a class="code" href="structNL3D_1_1CPatchUVLocator_1_1CUVBasis.html#a0">mulPoint</a>(uvIn, uvOut); +00214 patchOut= <a class="code" href="classNL3D_1_1CPatchUVLocator.html#o3">_NeighborPatch</a>[patch]; +00215 } +00216 } +00217 +00218 +00219 +00220 } <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> |