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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>patch_noise.cpp</h1><a href="patch__noise_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 +00029 <font class="preprocessor">#include "<a class="code" href="patch_8h.html">3d/patch.h</a>"</font> +00030 <font class="preprocessor">#include "<a class="code" href="tessellation_8h.html">3d/tessellation.h</a>"</font> +00031 <font class="preprocessor">#include "<a class="code" href="bezier__patch_8h.html">3d/bezier_patch.h</a>"</font> +00032 <font class="preprocessor">#include "<a class="code" href="src_23d_2zone_8h.html">3d/zone.h</a>"</font> +00033 <font class="preprocessor">#include "<a class="code" href="landscape_8h.html">3d/landscape.h</a>"</font> +00034 <font class="preprocessor">#include "<a class="code" href="vector_8h.html">nel/misc/vector.h</a>"</font> +00035 <font class="preprocessor">#include "<a class="code" href="common_8h.html">nel/misc/common.h</a>"</font> +00036 <font class="preprocessor">#include "<a class="code" href="tile__noise__map_8h.html">3d/tile_noise_map.h</a>"</font> +00037 <font class="preprocessor">#include "<a class="code" href="patchuv__locator_8h.html">3d/patchuv_locator.h</a>"</font> +00038 <font class="keyword">using</font> <font class="keyword">namespace </font>std; +00039 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC; +00040 +00041 +00042 <font class="keyword">namespace </font>NL3D +00043 { +00044 +00045 +00046 <font class="comment">// ***************************************************************************</font> +00047 +00048 +00049 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00050 <font class="preprocessor"></font> +00051 <font class="comment">/* This floor works only for floor with noise, because floor/ceil are only made on decimal coordinates:</font> +00052 <font class="comment"> sTile =1.25 .... NB: because of difference of mapping (rare case), we may have sometimes values with</font> +00053 <font class="comment"> precision < 1/4 (eg 1.125). Just use f*256 to compute the floor.</font> +00054 <font class="comment"></font> +00055 <font class="comment"> NB: using a fastFloor() (fistp changing the controlfp() is not very a good idea here, because </font> +00056 <font class="comment"> computeNoise() are not "packed", so change on controlFp() would bee to frequent... </font> +00057 <font class="comment"> And also because we need either floor() or ceil() here.</font> +00058 <font class="comment">*/</font> +00059 <font class="keyword">inline</font> sint <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(<font class="keywordtype">float</font> f) +00060 { +00061 <font class="comment">// build a fixed 24:8.</font> +00062 sint a; +00063 f*=256; +00064 +00065 <font class="comment">// fast ftol. work if no decimal.</font> +00066 _asm +00067 { +00068 fld f +00069 fistp a +00070 } +00071 +00072 <font class="comment">// floor.</font> +00073 a>>=8; +00074 +00075 <font class="keywordflow">return</font> a; +00076 } +00077 +00078 +00079 <font class="keyword">inline</font> sint <a class="code" href="namespaceNL3D.html#a394">noiseCeil</a>(<font class="keywordtype">float</font> f) +00080 { +00081 <font class="comment">// build a fixed 24:8.</font> +00082 sint a; +00083 f*=256; +00084 +00085 <font class="comment">// fast ftol. work if no decimal.</font> +00086 _asm +00087 { +00088 fld f +00089 fistp a +00090 } +00091 +00092 <font class="comment">// ceil.</font> +00093 a+=255; +00094 a>>=8; +00095 +00096 <font class="keywordflow">return</font> a; +00097 } +00098 +00099 +00100 <font class="keyword">inline</font> <font class="keywordtype">float</font> <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(<font class="keywordtype">float</font> f) +00101 { +00102 <font class="keywordflow">return</font> (float)<a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(f); +00103 } +00104 <font class="keyword">inline</font> <font class="keywordtype">float</font> <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(<font class="keywordtype">float</font> f) +00105 { +00106 <font class="keywordflow">return</font> (float)<a class="code" href="namespaceNL3D.html#a394">noiseCeil</a>(f); +00107 } +00108 +00109 +00110 <font class="preprocessor">#else</font> +00111 <font class="preprocessor"></font> +00112 +00113 <font class="keyword">inline</font> <font class="keywordtype">float</font> <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(<font class="keywordtype">float</font> f) +00114 { +00115 <font class="keywordflow">return</font> (float)floor(f); +00116 } +00117 <font class="keyword">inline</font> <font class="keywordtype">float</font> <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(<font class="keywordtype">float</font> f) +00118 { +00119 <font class="keywordflow">return</font> (float)ceil(f); +00120 } +00121 +00122 <font class="keyword">inline</font> sint <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(<font class="keywordtype">float</font> f) +00123 { +00124 <font class="keywordflow">return</font> (sint)floor(f); +00125 } +00126 <font class="keyword">inline</font> sint <a class="code" href="namespaceNL3D.html#a394">noiseCeil</a>(<font class="keywordtype">float</font> f) +00127 { +00128 <font class="keywordflow">return</font> (sint)ceil(f); +00129 } +00130 +00131 <font class="preprocessor">#endif</font> +00132 <font class="preprocessor"></font> +00133 +00134 +00135 <font class="comment">// ***************************************************************************</font> +<a name="l00136"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_0">00136</a> <font class="keywordtype">float</font> CPatch::computeDisplaceRawInteger(sint ts, sint tt, sint ms, sint mt)<font class="keyword"> const</font> +00137 <font class="keyword"></font>{ +00138 <font class="comment">// Choose the noiseMap.</font> +00139 <font class="comment">// ===============================</font> +00140 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(ts, 0, <a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>-1); +00141 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(tt, 0, <a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>-1); +00142 +00143 uint tileId= tt*<a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a> + ts; +00144 <font class="comment">// Get the tile for pass0. This is the principal tile, and this one tells what noise to take.</font> +00145 sint tileNumber= <a class="code" href="classNL3D_1_1CPatch.html#m4">Tiles</a>[tileId].Tile[0]; +00146 <font class="comment">// Get the subNoise from tileElement.</font> +00147 uint tileSubNoise= <a class="code" href="classNL3D_1_1CPatch.html#m4">Tiles</a>[tileId].getTileSubNoise(); +00148 +00149 <font class="comment">// retrieve the wanted noiseMap.</font> +00150 CTileNoiseMap *noiseMap; +00151 noiseMap = <a class="code" href="classNL3D_1_1CPatch.html#a5">getZone</a>()->getLandscape()->TileBank.getTileNoiseMap (tileNumber, tileSubNoise); +00152 +00153 +00154 <font class="comment">// Sample the noiseMap with (s,t).</font> +00155 <font class="comment">// ===============================</font> +00156 +00157 <font class="comment">// sample from map.</font> +00158 sint8 pix= noiseMap->Pixels[mt*<a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a> + ms]; +00159 +00160 <font class="comment">// normalize.</font> +00161 <font class="keywordflow">return</font> (float)pix * (<a class="code" href="patch_8h.html#a11">NL3D_NOISE_MAX</a> / 127.f); +00162 } +00163 +00164 +00165 <font class="comment">// ***************************************************************************</font> +<a name="l00166"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_1">00166</a> <font class="keywordtype">void</font> CPatch::computeDisplaceRawCoordinates(<font class="keywordtype">float</font> sTile, <font class="keywordtype">float</font> tTile, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, +00167 sint &ts, sint &tt, sint &ms, sint &mt)<font class="keyword"> const</font> +00168 <font class="keyword"></font>{ +00169 <font class="comment">// Choose the noiseMap.</font> +00170 <font class="comment">// ===============================</font> +00171 <font class="comment">// Compute coordinate in the patch.</font> +00172 ts= <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(sTile); +00173 tt= <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(tTile); +00174 +00175 +00176 <font class="comment">// Sample the noiseMap with (s,t).</font> +00177 <font class="comment">// ===============================</font> +00178 +00179 <font class="comment">// scale the map.</font> +00180 <font class="keywordtype">float</font> u= <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a> * <a class="code" href="tile__noise__map_8h.html#a0">NL3D_TILE_NOISE_MAP_TILE_FACTOR</a>; +00181 <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * <a class="code" href="tile__noise__map_8h.html#a0">NL3D_TILE_NOISE_MAP_TILE_FACTOR</a>; +00182 +00183 <font class="comment">// Speed rotation.</font> +00184 CUV uv; +00185 <font class="keywordflow">switch</font>(<a class="code" href="classNL3D_1_1CPatch.html#z668_2">NoiseRotation</a> & 3) +00186 { +00187 <font class="keywordflow">case</font> 0: +00188 uv.U= u; +00189 uv.V= <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>; +00190 <font class="keywordflow">break</font>; +00191 <font class="keywordflow">case</font> 1: +00192 uv.U= <a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a>-<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>; +00193 uv.V= u; +00194 <font class="keywordflow">break</font>; +00195 <font class="keywordflow">case</font> 2: +00196 uv.U= <a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a>-u; +00197 uv.V= <a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a>-<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>; +00198 <font class="keywordflow">break</font>; +00199 <font class="keywordflow">case</font> 3: +00200 uv.U= <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>; +00201 uv.V= <a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a>-u; +00202 <font class="keywordflow">break</font>; +00203 } +00204 +00205 <font class="comment">// direct map (no bilinear, no round, the case where s,t < 1/4 of a tile is very rare).</font> +00206 ms= <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(uv.U); +00207 mt= <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(uv.V); +00208 +00209 <font class="comment">// Manage Tiling (add NL3D_TILE_NOISE_MAP_SIZE*1 should be sufficient, but take margin).</font> +00210 ms= (ms + (<a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a>*256)) & (<a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a>-1); +00211 mt= (mt + (<a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a>*256)) & (<a class="code" href="tile__noise__map_8h.html#a1">NL3D_TILE_NOISE_MAP_SIZE</a>-1); +00212 } +00213 +00214 +00215 +00216 <font class="comment">// ***************************************************************************</font> +<a name="l00217"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_2">00217</a> <font class="keywordtype">float</font> CPatch::computeDisplaceRaw(<font class="keywordtype">float</font> sTile, <font class="keywordtype">float</font> tTile, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>)<font class="keyword"> const</font> +00218 <font class="keyword"></font>{ +00219 sint ts,tt,ms,mt; +00220 <a class="code" href="classNL3D_1_1CPatch.html#z685_1">computeDisplaceRawCoordinates</a>(sTile, tTile, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, ts, tt, ms, mt); +00221 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CPatch.html#z685_0">computeDisplaceRawInteger</a>(ts, tt, ms, mt); +00222 +00223 } +00224 +00225 <font class="comment">// ***************************************************************************</font> +00226 <font class="keyword">static</font> <font class="keyword">inline</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a395">computeDisplaceBilinear</a>(<font class="keywordtype">float</font> sTile, <font class="keywordtype">float</font> tTile, +00227 <font class="keywordtype">float</font> &sInc, <font class="keywordtype">float</font> &tInc, <font class="keywordtype">float</font> &sa, <font class="keywordtype">float</font> &ta, <font class="keywordtype">float</font> &sa1, <font class="keywordtype">float</font> &ta1) +00228 { +00229 <font class="keywordtype">float</font> sDecimal= sTile-<a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(sTile); +00230 <font class="keywordtype">float</font> tDecimal= tTile-<a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(tTile); +00231 <font class="keywordtype">float</font> sDist, tDist; +00232 +00233 <font class="comment">// Do a bilinear centered on 0.5, 0.5.</font> +00234 +00235 <font class="comment">// Compute increment, according to position against center.</font> +00236 <font class="keywordflow">if</font>(sDecimal>=0.5) +00237 sInc= 1; +00238 <font class="keywordflow">else</font> +00239 sInc= -1; +00240 <font class="keywordflow">if</font>(tDecimal>=0.5) +00241 tInc= 1; +00242 <font class="keywordflow">else</font> +00243 tInc= -1; +00244 +00245 <font class="comment">// Compute weight factor.</font> +00246 sDist= (float)fabs(0.5 - sDecimal); <font class="comment">// s distance from center.</font> +00247 tDist= (float)fabs(0.5 - tDecimal); <font class="comment">// t distance from center.</font> +00248 sa= 1-sDist; +00249 ta= 1-tDist; +00250 sa1= 1-sa; +00251 ta1= 1-ta; +00252 } +00253 +00254 +00255 <font class="comment">// ***************************************************************************</font> +<a name="l00256"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_4">00256</a> <font class="keywordtype">float</font> CPatch::computeDisplaceInteriorSmooth(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>)<font class="keyword"> const</font> +00257 <font class="keyword"></font>{ +00258 <font class="keywordtype">float</font> sTile= <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00259 <font class="keywordtype">float</font> tTile= <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00260 <font class="keywordtype">float</font> ret; +00261 +00262 <font class="comment">// compute bi-linear weight factors.</font> +00263 <font class="keywordtype">float</font> sInc, tInc, sa, ta, sa1, ta1; +00264 <a class="code" href="namespaceNL3D.html#a395">computeDisplaceBilinear</a>(sTile, tTile, sInc, tInc, sa, ta, sa1, ta1); +00265 +00266 +00267 <font class="comment">// NB: to have smooth transition, must keep the same (s,t), so we do a transition with the noise tile of </font> +00268 <font class="comment">// our neigbhor, but under us.</font> +00269 +00270 <font class="comment">// speed up, using just one computeDisplaceRawCoordinates(), and multiple computeDisplaceRawInteger().</font> +00271 sint ts,tt,ms,mt; +00272 <a class="code" href="classNL3D_1_1CPatch.html#z685_1">computeDisplaceRawCoordinates</a>(sTile, tTile, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, ts, tt, ms, mt); +00273 +00274 sint sIncInt= (sint) sInc; +00275 sint tIncInt= (sint) tInc; +00276 ret = <a class="code" href="classNL3D_1_1CPatch.html#z685_0">computeDisplaceRawInteger</a>(ts, tt, ms,mt) * sa * ta; +00277 ret+= <a class="code" href="classNL3D_1_1CPatch.html#z685_0">computeDisplaceRawInteger</a>(ts+sIncInt, tt, ms,mt) * sa1 * ta; +00278 ret+= <a class="code" href="classNL3D_1_1CPatch.html#z685_0">computeDisplaceRawInteger</a>(ts, tt+tIncInt, ms,mt) * sa * ta1; +00279 ret+= <a class="code" href="classNL3D_1_1CPatch.html#z685_0">computeDisplaceRawInteger</a>(ts+sIncInt, tt+tIncInt, ms,mt) * sa1 * ta1; +00280 +00281 <font class="keywordflow">return</font> ret; +00282 } +00283 +00284 +00285 <font class="comment">// ***************************************************************************</font> +<a name="l00286"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_5">00286</a> <font class="keywordtype">float</font> CPatch::computeDisplaceEdgeSmooth(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, sint8 smoothBorderX, sint8 smoothBorderY)<font class="keyword"> const</font> +00287 <font class="keyword"></font>{ +00288 <font class="keywordtype">float</font> sTile= <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00289 <font class="keywordtype">float</font> tTile= <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00290 CBindInfo bindInfo; +00291 uint edge=0; +00292 +00293 <font class="comment">// only one must be not null</font> +00294 <a class="code" href="debug_8h.html#a6">nlassert</a>( (smoothBorderX==0) != (smoothBorderY==0) ); +00295 +00296 +00297 <font class="comment">// Get the edge against we must share displace.</font> +00298 <font class="keywordflow">if</font>(smoothBorderX==-1) edge=0; +00299 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==1) edge=1; +00300 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderX==1) edge=2; +00301 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==-1) edge=3; +00302 <font class="keywordflow">else</font> <a class="code" href="debug_8h.html#a12">nlstop</a>; +00303 +00304 <font class="comment">// Build the bindInfo against this edge.</font> +00305 <a class="code" href="classNL3D_1_1CPatch.html#a13">getBindNeighbor</a>(edge, bindInfo); +00306 +00307 <font class="comment">// Fast reject: if no neighbor, just do a simple computeDisplaceInteriorSmooth.</font> +00308 <font class="keywordflow">if</font>(!bindInfo.Zone) +00309 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CPatch.html#z685_4">computeDisplaceInteriorSmooth</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00310 <font class="comment">// else, look for result in neighborhood.</font> +00311 <font class="keywordflow">else</font> +00312 { +00313 <font class="keywordtype">float</font> ret; +00314 +00315 +00316 <font class="comment">// compute bi-linear weight factors.</font> +00317 <font class="keywordtype">float</font> sInc, tInc, sa, ta, sa1, ta1; +00318 <a class="code" href="namespaceNL3D.html#a395">computeDisplaceBilinear</a>(sTile, tTile, sInc, tInc, sa, ta, sa1, ta1); +00319 <font class="comment">// Manage limit case: if bilinear has not chosen the good direction (because of floor and orientation).</font> +00320 <font class="comment">// eg on Right edge: This case arise if sDecimal==0, so if sa==sa1==0.5f. result is that</font> +00321 <font class="comment">// smoothBorderX is != than sInc on right border. same reasoning with downBorder (smoothBorderY=1).</font> +00322 +00323 <font class="comment">// NO NEED TO DO HERE, because sInc or tInc is not used if it is bad (smoothBorder? used instead).</font> +00324 <font class="comment">// and no need to correct sa, sa1, because in this case they are both equal to 0.5.</font> +00325 +00326 +00327 <font class="comment">// compute Neighboring info.</font> +00328 CPatchUVLocator uvLocator; +00329 uvLocator.build(<font class="keyword">this</font>, edge, bindInfo); +00330 +00331 <font class="comment">/* NB: there is floor problems with neighbors:</font> +00332 <font class="comment"> - difference of orientation => uv.v=1. This point to the 1th tile. But this is not the same, if</font> +00333 <font class="comment"> v goes to up, or goes to down.</font> +00334 <font class="comment"> - if multiple bind, problem at limit (eg a bind 1/2 on edge 0 with OrdertT=8, when uv.v= 4).</font> +00335 <font class="comment"> because, selection of the patch is dependent of orientation too.</font> +00336 <font class="comment"> To avoid them, just take center of (sTile, tTile) to remove ambiguity.</font> +00337 <font class="comment"> This works because computeDisplaceRaw() use sTile, tTile to get the noiseMap, so the decimal part is not </font> +00338 <font class="comment"> used.</font> +00339 <font class="comment"></font> +00340 <font class="comment"> Notice that we do this AFTER computeDisplaceBilinear() of course.</font> +00341 <font class="comment"> */</font> +00342 sTile= <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(sTile) + 0.5f; +00343 tTile= <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(tTile) + 0.5f; +00344 <font class="comment">// If we were exactly on the superior edge, prec compute is false... so correct this here.</font> +00345 <font class="keywordflow">if</font>(sTile><a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>) sTile--; +00346 <font class="keywordflow">if</font>(tTile><a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>) tTile--; +00347 +00348 +00349 <font class="comment">// Bilinear across an edge (enjoy!!).</font> +00350 CVector2f stTileIn, stIn; +00351 CVector2f stTileOut, stOut; +00352 <a class="code" href="classNL3D_1_1CPatch.html#a0">CPatch</a> *patchOut; +00353 uint patchId; +00354 +00355 +00356 <font class="comment">// if vertical edge.</font> +00357 <font class="keywordflow">if</font>(smoothBorderX!=0) +00358 { +00359 <font class="comment">// compute contribution of our patch.</font> +00360 ret = <a class="code" href="classNL3D_1_1CPatch.html#z685_2">computeDisplaceRaw</a>(sTile,tTile, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>) * sa * ta; +00361 ret+= <a class="code" href="classNL3D_1_1CPatch.html#z685_2">computeDisplaceRaw</a>(sTile,tTile+tInc, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>) * sa * ta1; +00362 +00363 <font class="comment">// compute contribution of next(s) patchs.</font> +00364 +00365 <font class="comment">// contribution of next at tTile.</font> +00366 <font class="comment">// Keep the same coordinate.</font> +00367 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00368 <font class="comment">// But look for the neighbor noise tile.</font> +00369 stTileIn.set(sTile+smoothBorderX, tTile); +00370 <font class="comment">// change basis: find the s,t on the neighbor patch.</font> +00371 patchId= uvLocator.selectPatch(stTileIn); +00372 uvLocator.locateUV(stTileIn, patchId, patchOut, stTileOut); +00373 uvLocator.locateUV(stIn, patchId, patchOut, stOut); +00374 <font class="comment">// Compute displace, and bi-linear on the neighbor patch.</font> +00375 ret+= patchOut->computeDisplaceRaw(stTileOut.x, stTileOut.y, stOut.x, stOut.y) * sa1 * ta; +00376 +00377 <font class="comment">// contribution of next at tTile+tInc (same reasoning).</font> +00378 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00379 stTileIn.set(sTile+smoothBorderX, tTile+tInc); +00380 patchId= uvLocator.selectPatch(stTileIn); +00381 uvLocator.locateUV(stTileIn, patchId, patchOut, stTileOut); +00382 uvLocator.locateUV(stIn, patchId, patchOut, stOut); +00383 ret+= patchOut->computeDisplaceRaw(stTileOut.x, stTileOut.y, stOut.x, stOut.y) * sa1 * ta1; +00384 +00385 } +00386 <font class="comment">// else if horizontal edge.</font> +00387 <font class="keywordflow">else</font> +00388 { +00389 <font class="comment">// same reasoning as above.</font> +00390 +00391 <font class="comment">// compute contribution of our patch.</font> +00392 ret = <a class="code" href="classNL3D_1_1CPatch.html#z685_2">computeDisplaceRaw</a>(sTile, tTile, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>) * sa * ta; +00393 ret+= <a class="code" href="classNL3D_1_1CPatch.html#z685_2">computeDisplaceRaw</a>(sTile+sInc,tTile, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>) * sa1 * ta; +00394 +00395 <font class="comment">// compute contribution of next(s) patchs.</font> +00396 <font class="comment">// contribution of next at tTile.</font> +00397 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00398 stTileIn.set(sTile, tTile+smoothBorderY); +00399 patchId= uvLocator.selectPatch(stTileIn); +00400 uvLocator.locateUV(stTileIn, patchId, patchOut, stTileOut); +00401 uvLocator.locateUV(stIn, patchId, patchOut, stOut); +00402 ret+= patchOut->computeDisplaceRaw(stTileOut.x, stTileOut.y, stOut.x, stOut.y) * sa * ta1; +00403 +00404 <font class="comment">// contribution of next at tTile+tInc (same reasoning).</font> +00405 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00406 stTileIn.set(sTile+sInc, tTile+smoothBorderY); +00407 patchId= uvLocator.selectPatch(stTileIn); +00408 uvLocator.locateUV(stTileIn, patchId, patchOut, stTileOut); +00409 uvLocator.locateUV(stIn, patchId, patchOut, stOut); +00410 ret+= patchOut->computeDisplaceRaw(stTileOut.x, stTileOut.y, stOut.x, stOut.y) * sa1 * ta1; +00411 } +00412 +00413 <font class="keywordflow">return</font> ret; +00414 } +00415 +00416 } +00417 +00418 +00419 <font class="comment">// ***************************************************************************</font> +<a name="l00420"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_3">00420</a> <font class="keywordtype">float</font> CPatch::computeDisplaceRawOnNeighbor(<font class="keywordtype">float</font> sTile, <font class="keywordtype">float</font> tTile, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>)<font class="keyword"> const</font> +00421 <font class="keyword"></font>{ +00422 sint edge= -1; +00423 +00424 <font class="comment">// look on what neighbor patch we must find the value (if any).</font> +00425 <font class="keywordflow">if</font>(sTile<0) edge=0; +00426 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(tTile><a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>) edge=1; +00427 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(sTile><a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>) edge=2; +00428 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(tTile<0) edge=3; +00429 +00430 <font class="comment">// If the location is In the patch, just return normal value.</font> +00431 <font class="keywordflow">if</font>(edge==-1) +00432 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CPatch.html#z685_2">computeDisplaceRaw</a>(sTile, tTile, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00433 <font class="comment">// else must find on neighbor.</font> +00434 <font class="keywordflow">else</font> +00435 { +00436 CBindInfo bindInfo; +00437 <a class="code" href="classNL3D_1_1CPatch.html#a13">getBindNeighbor</a>(edge, bindInfo); +00438 +00439 <font class="comment">// Fast reject: if no neighbor on the edge, just do a simple computeDisplaceRaw()</font> +00440 <font class="keywordflow">if</font>(!bindInfo.Zone) +00441 { +00442 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CPatch.html#z685_2">computeDisplaceRaw</a>(sTile, tTile, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00443 } +00444 <font class="comment">// else must find on neighbor.</font> +00445 <font class="keywordflow">else</font> +00446 { +00447 CPatchUVLocator uvLocator; +00448 uvLocator.build(<font class="keyword">this</font>, edge, bindInfo); +00449 +00450 CVector2f stTileIn, stIn; +00451 CVector2f stTileOut, stOut; +00452 <a class="code" href="classNL3D_1_1CPatch.html#a0">CPatch</a> *patchOut; +00453 uint patchId; +00454 +00455 <font class="comment">// look on neighbor. same reasoning as in computeDisplaceEdgeSmooth();</font> +00456 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00457 stTileIn.set(sTile, tTile); +00458 patchId= uvLocator.selectPatch(stTileIn); +00459 uvLocator.locateUV(stTileIn, patchId, patchOut, stTileOut); +00460 uvLocator.locateUV(stIn, patchId, patchOut, stOut); +00461 <font class="keywordflow">return</font> patchOut->computeDisplaceRaw(stTileOut.x, stTileOut.y, stOut.x, stOut.y); +00462 } +00463 +00464 } +00465 } +00466 +00467 +00468 <font class="comment">// ***************************************************************************</font> +<a name="l00469"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_6">00469</a> <font class="keywordtype">float</font> CPatch::computeDisplaceCornerSmooth(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, sint8 smoothBorderX, sint8 smoothBorderY)<font class="keyword"> const</font> +00470 <font class="keyword"></font>{ +00471 <font class="comment">// compute the value across the corner (enjoy!!)</font> +00472 <font class="comment">// NB: Only corners with Edges==4 and corners on a bind are correclty supported.</font> +00473 <font class="comment">// ignore problems with corner which nbEdges!=4, because Blend of normals blend to 0 on corner (see computenoise()).</font> +00474 +00475 <font class="keywordtype">float</font> sTile= <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00476 <font class="keywordtype">float</font> tTile= <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00477 CBindInfo bindInfoX; +00478 CBindInfo bindInfoY; +00479 uint edgeX=0; +00480 uint edgeY=0; +00481 +00482 <font class="comment">// both must be not null</font> +00483 <a class="code" href="debug_8h.html#a6">nlassert</a>( (smoothBorderX!=0) && (smoothBorderY!=0) ); +00484 +00485 +00486 <font class="comment">// Get the edge against we must share displace.</font> +00487 <font class="keywordflow">if</font>(smoothBorderX==-1) edgeX=0; +00488 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderX==1) edgeX=2; +00489 <font class="keywordflow">else</font> <a class="code" href="debug_8h.html#a12">nlstop</a>; +00490 <font class="keywordflow">if</font>(smoothBorderY==1) edgeY=1; +00491 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==-1) edgeY=3; +00492 <font class="keywordflow">else</font> <a class="code" href="debug_8h.html#a12">nlstop</a>; +00493 +00494 <font class="comment">// Build the bindInfo against those 2 edge.</font> +00495 <a class="code" href="classNL3D_1_1CPatch.html#a13">getBindNeighbor</a>(edgeX, bindInfoX); +00496 <a class="code" href="classNL3D_1_1CPatch.html#a13">getBindNeighbor</a>(edgeY, bindInfoY); +00497 +00498 <font class="comment">// Fast reject: if no neighbor on one of the edge, just do a simple computeDisplaceInteriorSmooth.</font> +00499 <font class="keywordflow">if</font>(!bindInfoX.Zone || !bindInfoY.Zone) +00500 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CPatch.html#z685_4">computeDisplaceInteriorSmooth</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00501 <font class="keywordflow">else</font> +00502 { +00503 <font class="keywordtype">float</font> ret; +00504 +00505 +00506 <font class="comment">// compute bi-linear weight factors.</font> +00507 <font class="keywordtype">float</font> sInc, tInc, sa, ta, sa1, ta1; +00508 <a class="code" href="namespaceNL3D.html#a395">computeDisplaceBilinear</a>(sTile, tTile, sInc, tInc, sa, ta, sa1, ta1); +00509 <font class="comment">// Manage limit case: if bilinear has not chosen the good direction (because of floor and orientation).</font> +00510 <font class="comment">// eg on Right edge: This case arise if sDecimal==0, so if sa==sa1==0.5f. result is that</font> +00511 <font class="comment">// smoothBorderX is != than sInc on right border. same reasoning with downBorder (smoothBorderY=1).</font> +00512 +00513 <font class="comment">// NO NEED TO DO HERE, because sInc or tInc are not used at all.</font> +00514 +00515 +00516 +00517 <font class="comment">// compute Neighboring info.</font> +00518 CPatchUVLocator uvLocatorX; +00519 CPatchUVLocator uvLocatorY; +00520 uvLocatorX.build(<font class="keyword">this</font>, edgeX, bindInfoX); +00521 uvLocatorY.build(<font class="keyword">this</font>, edgeY, bindInfoY); +00522 +00523 +00524 <font class="comment">/* NB: see floor problems note in computeDisplaceEdgeSmooth();</font> +00525 <font class="comment"> */</font> +00526 sTile= <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(sTile) + 0.5f; +00527 tTile= <a class="code" href="namespaceNL3D.html#a393">noiseFloor</a>(tTile) + 0.5f; +00528 <font class="comment">// If we were exactly on the superior edge, prec compute is false... so correct this here.</font> +00529 <font class="keywordflow">if</font>(sTile><a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>) sTile--; +00530 <font class="keywordflow">if</font>(tTile><a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>) tTile--; +00531 +00532 +00533 <font class="comment">// Bilinear across a corner.</font> +00534 CVector2f stTileIn, stIn; +00535 CVector2f stTileOut, stOut; +00536 <a class="code" href="classNL3D_1_1CPatch.html#a0">CPatch</a> *patchOut; +00537 uint patchId; +00538 +00539 +00540 <font class="comment">// compute contribution of our patch.</font> +00541 ret = <a class="code" href="classNL3D_1_1CPatch.html#z685_2">computeDisplaceRaw</a>(sTile,tTile, <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>) * sa * ta; +00542 +00543 <font class="comment">// compute contribution of the patch on the left/right side. same reasoning as in computeDisplaceEdgeSmooth();</font> +00544 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00545 stTileIn.set(sTile+smoothBorderX, tTile); +00546 patchId= uvLocatorX.selectPatch(stTileIn); +00547 uvLocatorX.locateUV(stTileIn, patchId, patchOut, stTileOut); +00548 uvLocatorX.locateUV(stIn, patchId, patchOut, stOut); +00549 ret+= patchOut->computeDisplaceRaw(stTileOut.x, stTileOut.y, stOut.x, stOut.y) * sa1 * ta; +00550 +00551 +00552 <font class="comment">// compute contribution of the patch on the up/down side. same reasoning as in computeDisplaceEdgeSmooth();</font> +00553 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00554 stTileIn.set(sTile, tTile+smoothBorderY); +00555 patchId= uvLocatorY.selectPatch(stTileIn); +00556 uvLocatorY.locateUV(stTileIn, patchId, patchOut, stTileOut); +00557 uvLocatorY.locateUV(stIn, patchId, patchOut, stOut); +00558 ret+= patchOut->computeDisplaceRaw(stTileOut.x, stTileOut.y, stOut.x, stOut.y) * sa * ta1; +00559 +00560 +00561 <font class="comment">/* compute contribution of the patch adjacent to me.</font> +00562 <font class="comment"> There is multiple case to consider here. Take example with corner=0 (ie smBdX=smBdY=-1):</font> +00563 <font class="comment"> - if we are a normal corner with 4 edges, take the result from the left patch of our top patch.</font> +00564 <font class="comment"> - if the corner is on a bind Edge, the top patch may be the bigger patch, so don't take the result</font> +00565 <font class="comment"> from his neighbor (of course).</font> +00566 <font class="comment"> - if we are a normal corner with N!=4 edges, just do same thing than if N==4. this is false but don't bother.</font> +00567 <font class="comment"></font> +00568 <font class="comment"> To solve smoothly cases 1 and 2, use computeDisplaceRawOnNeighbor().</font> +00569 <font class="comment"> This method, if nessecary, look on his neighbor to compute the value.</font> +00570 <font class="comment"> */</font> +00571 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00572 stTileIn.set(sTile+smoothBorderX, tTile+smoothBorderY); +00573 <font class="comment">// look on our "top" patch (this is arbitrary).</font> +00574 patchId= uvLocatorY.selectPatch(stTileIn); +00575 uvLocatorY.locateUV(stTileIn, patchId, patchOut, stTileOut); +00576 uvLocatorY.locateUV(stIn, patchId, patchOut, stOut); +00577 ret+= patchOut->computeDisplaceRawOnNeighbor(stTileOut.x, stTileOut.y, stOut.x, stOut.y) * sa1 * ta1; +00578 +00579 +00580 <font class="keywordflow">return</font> ret; +00581 } +00582 +00583 } +00584 +00585 <font class="comment">// ***************************************************************************</font> +<a name="l00586"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_7">00586</a> CVector CPatch::computeNormalEdgeSmooth(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, sint8 smoothBorderX, sint8 smoothBorderY)<font class="keyword"> const</font> +00587 <font class="keyword"></font>{ +00588 CBindInfo bindInfo; +00589 uint edge=0; +00590 CBezierPatch *bpatch; +00591 bpatch= <a class="code" href="classNL3D_1_1CPatch.html#a45">unpackIntoCache</a>(); +00592 +00593 <font class="comment">// only one must be not null</font> +00594 <a class="code" href="debug_8h.html#a6">nlassert</a>( (smoothBorderX==0) != (smoothBorderY==0) ); +00595 +00596 +00597 <font class="comment">// Get the edge against we must share displace.</font> +00598 <font class="keywordflow">if</font>(smoothBorderX==-1) edge=0; +00599 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==1) edge=1; +00600 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderX==1) edge=2; +00601 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==-1) edge=3; +00602 <font class="keywordflow">else</font> <a class="code" href="debug_8h.html#a12">nlstop</a>; +00603 +00604 <font class="comment">// If the edge is smoothed, blend with neighbor.</font> +00605 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CPatch.html#a40">getSmoothFlag</a>(edge)) +00606 { +00607 <font class="comment">// Build the bindInfo against this edge.</font> +00608 <a class="code" href="classNL3D_1_1CPatch.html#a13">getBindNeighbor</a>(edge, bindInfo); +00609 +00610 <font class="comment">// Fast reject: if no neighbor, just do a simple computeDisplaceInteriorSmooth.</font> +00611 <font class="keywordflow">if</font>(!bindInfo.Zone) +00612 <font class="keywordflow">return</font> bpatch->evalNormal(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>/<a class="code" href="classNL3D_1_1CPatch.html#a6">getOrderS</a>(), <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>/<a class="code" href="classNL3D_1_1CPatch.html#a7">getOrderT</a>()); +00613 <font class="keywordflow">else</font> +00614 { +00615 CVector r0, r1; +00616 +00617 <font class="comment">// Compute our contribution.</font> +00618 r0= bpatch->evalNormal(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>/<a class="code" href="classNL3D_1_1CPatch.html#a6">getOrderS</a>(), <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>/<a class="code" href="classNL3D_1_1CPatch.html#a7">getOrderT</a>()); +00619 +00620 <font class="comment">// Compute the coordinate on the border of the edge, and the coef of the blend.</font> +00621 <font class="keywordtype">float</font> se=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00622 <font class="keywordtype">float</font> te=<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00623 <font class="keywordtype">float</font> coef=0.0; +00624 <font class="keywordflow">if</font>(smoothBorderX==-1) se= <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(se), coef=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>-se; +00625 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderX==1) se= <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(se), coef=se-<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00626 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==-1) te= <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(te), coef=<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>-te; +00627 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==1) te= <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(te), coef=te-<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00628 coef= 0.5f + coef*0.5f; +00629 +00630 <font class="comment">// Compute contribution of the normal on the neighbor, on the border of the edge.</font> +00631 CPatchUVLocator uvLocator; +00632 CVector2f stIn, stOut; +00633 <a class="code" href="classNL3D_1_1CPatch.html#a0">CPatch</a> *patchOut; +00634 uint patchId; +00635 +00636 uvLocator.build(<font class="keyword">this</font>, edge, bindInfo); +00637 stIn.set(se, te); +00638 patchId= uvLocator.selectPatch(stIn); +00639 uvLocator.locateUV(stIn, patchId, patchOut, stOut); +00640 +00641 bpatch= patchOut->unpackIntoCache(); +00642 r1= bpatch->evalNormal(stOut.x/patchOut->getOrderS(), stOut.y/patchOut->getOrderT()); +00643 +00644 <font class="comment">// NB: don't bother problems with bind 1/X and the choice of the patch, because bind are C1, so normal is C0.</font> +00645 +00646 <font class="comment">// Blend 2 result. For speed optim, don't normalize.</font> +00647 <font class="keywordflow">return</font> r0*coef + r1*(1-coef); +00648 } +00649 } +00650 <font class="comment">// else blend with vector Null.</font> +00651 <font class="keywordflow">else</font> +00652 { +00653 <font class="comment">// compute coef.</font> +00654 <font class="keywordtype">float</font> se=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00655 <font class="keywordtype">float</font> te=<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00656 <font class="keywordtype">float</font> coef=0.0; +00657 <font class="keywordflow">if</font>(smoothBorderX==-1) se= <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(se), coef=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>-se; +00658 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderX==1) se= <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(se), coef=se-<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00659 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==-1) te= <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(te), coef=<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>-te; +00660 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==1) te= <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(te), coef=te-<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00661 +00662 <font class="comment">// Compute our contribution.</font> +00663 CVector r0; +00664 r0= bpatch->evalNormal(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>/<a class="code" href="classNL3D_1_1CPatch.html#a6">getOrderS</a>(), <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>/<a class="code" href="classNL3D_1_1CPatch.html#a7">getOrderT</a>()); +00665 +00666 <font class="comment">// Blend with 0.</font> +00667 <font class="keywordflow">return</font> r0*coef; +00668 } +00669 } +00670 +00671 +00672 <font class="comment">// ***************************************************************************</font> +<a name="l00673"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_9">00673</a> CVector CPatch::computeNormalOnNeighbor(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, uint edgeExclude)<font class="keyword"> const</font> +00674 <font class="keyword"></font>{ +00675 sint edge= -1; +00676 +00677 <font class="comment">// look on what neighbor patch we must find the value (if any).</font> +00678 <font class="keywordflow">if</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a><1 && edgeExclude!=0) edge=0; +00679 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>><a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>-1 && edgeExclude!=1) edge=1; +00680 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>><a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>-1 && edgeExclude!=2) edge=2; +00681 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a><1 && edgeExclude!=3) edge=3; +00682 +00683 +00684 <font class="comment">// If the location is In the patch, just return normal value. (case of a bind 1/X).</font> +00685 <font class="keywordflow">if</font>(edge==-1) +00686 { +00687 CBezierPatch *bpatch= <a class="code" href="classNL3D_1_1CPatch.html#a45">unpackIntoCache</a>(); +00688 <font class="keywordflow">return</font> bpatch->evalNormal(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>/<a class="code" href="classNL3D_1_1CPatch.html#a6">getOrderS</a>(), <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>/<a class="code" href="classNL3D_1_1CPatch.html#a7">getOrderT</a>()); +00689 } +00690 <font class="comment">// else must find on neighbor.</font> +00691 <font class="keywordflow">else</font> +00692 { +00693 CBindInfo bindInfo; +00694 <a class="code" href="classNL3D_1_1CPatch.html#a13">getBindNeighbor</a>(edge, bindInfo); +00695 +00696 <font class="comment">// Fast reject: if no neighbor on the edge, just do a simple computeDisplaceRaw()</font> +00697 <font class="keywordflow">if</font>(!bindInfo.Zone) +00698 { +00699 CBezierPatch *bpatch= <a class="code" href="classNL3D_1_1CPatch.html#a45">unpackIntoCache</a>(); +00700 <font class="keywordflow">return</font> bpatch->evalNormal(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>/<a class="code" href="classNL3D_1_1CPatch.html#a6">getOrderS</a>(), <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>/<a class="code" href="classNL3D_1_1CPatch.html#a7">getOrderT</a>()); +00701 } +00702 <font class="comment">// else must find on neighbor.</font> +00703 <font class="keywordflow">else</font> +00704 { +00705 CPatchUVLocator uvLocator; +00706 uvLocator.build(<font class="keyword">this</font>, edge, bindInfo); +00707 +00708 CVector2f stIn; +00709 CVector2f stOut; +00710 <a class="code" href="classNL3D_1_1CPatch.html#a0">CPatch</a> *patchOut; +00711 uint patchId; +00712 +00713 <font class="comment">// look on neighbor. same reasoning as in computeDisplaceEdgeSmooth();</font> +00714 stIn.set(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00715 patchId= uvLocator.selectPatch(stIn); +00716 uvLocator.locateUV(stIn, patchId, patchOut, stOut); +00717 CBezierPatch *bpatch= patchOut->unpackIntoCache(); +00718 <font class="keywordflow">return</font> bpatch->evalNormal(stOut.x/patchOut->getOrderS(), stOut.y/patchOut->getOrderT()); +00719 } +00720 +00721 } +00722 } +00723 +00724 +00725 <font class="comment">// ***************************************************************************</font> +<a name="l00726"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_8">00726</a> CVector CPatch::computeNormalCornerSmooth(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, sint8 smoothBorderX, sint8 smoothBorderY)<font class="keyword"> const</font> +00727 <font class="keyword"></font>{ +00728 CBindInfo bindInfoX; +00729 CBindInfo bindInfoY; +00730 uint edgeX=0; +00731 uint edgeY=0; +00732 uint corner; +00733 CBezierPatch *bpatch; +00734 bpatch= <a class="code" href="classNL3D_1_1CPatch.html#a45">unpackIntoCache</a>(); +00735 +00736 <font class="comment">// both must be not null</font> +00737 <a class="code" href="debug_8h.html#a6">nlassert</a>( (smoothBorderX!=0) && (smoothBorderY!=0) ); +00738 +00739 +00740 <font class="comment">// Get the edge against we must share displace.</font> +00741 <font class="keywordflow">if</font>(smoothBorderX==-1) edgeX=0; +00742 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderX==1) edgeX=2; +00743 <font class="keywordflow">else</font> <a class="code" href="debug_8h.html#a12">nlstop</a>; +00744 <font class="keywordflow">if</font>(smoothBorderY==1) edgeY=1; +00745 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothBorderY==-1) edgeY=3; +00746 <font class="keywordflow">else</font> <a class="code" href="debug_8h.html#a12">nlstop</a>; +00747 +00748 <font class="comment">// Get the corner against we must share displace.</font> +00749 <font class="keywordflow">if</font>(smoothBorderX==-1) +00750 { +00751 <font class="keywordflow">if</font>(smoothBorderY==-1) corner=0; +00752 <font class="keywordflow">else</font> corner=1; +00753 } +00754 <font class="keywordflow">else</font> +00755 { +00756 <font class="keywordflow">if</font>(smoothBorderY==-1) corner=3; +00757 <font class="keywordflow">else</font> corner=2; +00758 } +00759 +00760 <font class="comment">// If this corner is smoothed, blend with 4 neighbors patchs.</font> +00761 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CPatch.html#z668_1">getCornerSmoothFlag</a>(corner)) +00762 { +00763 <font class="comment">// Build the bindInfo against the 2 edge.</font> +00764 <a class="code" href="classNL3D_1_1CPatch.html#a13">getBindNeighbor</a>(edgeX, bindInfoX); +00765 <a class="code" href="classNL3D_1_1CPatch.html#a13">getBindNeighbor</a>(edgeY, bindInfoY); +00766 +00767 <font class="comment">// Fast reject: if no neighbor, just do a simple computeDisplaceInteriorSmooth.</font> +00768 <font class="keywordflow">if</font>(!bindInfoX.Zone || !bindInfoY.Zone) +00769 <font class="keywordflow">return</font> bpatch->evalNormal(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>/<a class="code" href="classNL3D_1_1CPatch.html#a6">getOrderS</a>(), <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>/<a class="code" href="classNL3D_1_1CPatch.html#a7">getOrderT</a>()); +00770 <font class="keywordflow">else</font> +00771 { +00772 CVector ret; +00773 +00774 +00775 <font class="comment">// Compute the coordinate on the border of the edge, and the coef of the blend.</font> +00776 <font class="keywordtype">float</font> se=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00777 <font class="keywordtype">float</font> te=<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00778 <font class="keywordtype">float</font> coefX; +00779 <font class="keywordtype">float</font> coefY; +00780 <font class="keywordflow">if</font>(smoothBorderX==-1) se= <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(se), coefX=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>-se; +00781 <font class="keywordflow">else</font> se= <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(se), coefX=se-<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00782 <font class="keywordflow">if</font>(smoothBorderY==-1) te= <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(te), coefY=<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>-te; +00783 <font class="keywordflow">else</font> te= <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(te), coefY=te-<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00784 coefX= 0.5f + coefX*0.5f; +00785 coefY= 0.5f + coefY*0.5f; +00786 +00787 +00788 <font class="comment">// Compute our contribution.</font> +00789 ret= bpatch->evalNormal(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>/<a class="code" href="classNL3D_1_1CPatch.html#a6">getOrderS</a>(), <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>/<a class="code" href="classNL3D_1_1CPatch.html#a7">getOrderT</a>()) *coefX*coefY; +00790 +00791 +00792 <font class="comment">// compute Neighboring info.</font> +00793 CPatchUVLocator uvLocatorX; +00794 CPatchUVLocator uvLocatorY; +00795 CVector2f stIn, stOut; +00796 <a class="code" href="classNL3D_1_1CPatch.html#a0">CPatch</a> *patchOut; +00797 uint patchId; +00798 +00799 uvLocatorX.build(<font class="keyword">this</font>, edgeX, bindInfoX); +00800 uvLocatorY.build(<font class="keyword">this</font>, edgeY, bindInfoY); +00801 +00802 <font class="comment">// Patch on our X side.</font> +00803 stIn.set(se, te); +00804 patchId= uvLocatorX.selectPatch(stIn); +00805 uvLocatorX.locateUV(stIn, patchId, patchOut, stOut); +00806 bpatch= patchOut->unpackIntoCache(); +00807 ret+= bpatch->evalNormal(stOut.x/patchOut->getOrderS(), stOut.y/patchOut->getOrderT()) *(1-coefX)*coefY; +00808 +00809 <font class="comment">// Patch on our Y side.</font> +00810 stIn.set(se, te); +00811 patchId= uvLocatorY.selectPatch(stIn); +00812 uvLocatorY.locateUV(stIn, patchId, patchOut, stOut); +00813 bpatch= patchOut->unpackIntoCache(); +00814 ret+= bpatch->evalNormal(stOut.x/patchOut->getOrderS(), stOut.y/patchOut->getOrderT()) *coefX*(1-coefY); +00815 +00816 <font class="comment">/* compute contribution of the patch adjacent to me.</font> +00817 <font class="comment"> Same reasoning as in computeDisplaceCornerSmooth().</font> +00818 <font class="comment"> */</font> +00819 stIn.set(se, te); +00820 patchId= uvLocatorY.selectPatch(stIn); +00821 uvLocatorY.locateUV(stIn, patchId, patchOut, stOut); +00822 <font class="comment">// Because we compute the normal exactly on the edge, we must inform this method not to take us as neighbor.</font> +00823 <font class="comment">// ugly but simpler.</font> +00824 ret+= patchOut->computeNormalOnNeighbor(stOut.x, stOut.y, bindInfoY.Edge[patchId]) *(1-coefX)*(1-coefY); +00825 +00826 <font class="keywordflow">return</font> ret; +00827 } +00828 } +00829 <font class="comment">// else must blend with 0.</font> +00830 <font class="keywordflow">else</font> +00831 { +00832 <font class="comment">// compute coef.</font> +00833 <font class="keywordtype">float</font> se=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00834 <font class="keywordtype">float</font> te=<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00835 <font class="keywordtype">float</font> coefX; +00836 <font class="keywordtype">float</font> coefY; +00837 <font class="keywordflow">if</font>(smoothBorderX==-1) se= <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(se), coefX=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>-se; +00838 <font class="keywordflow">else</font> se= <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(se), coefX=se-<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>; +00839 <font class="keywordflow">if</font>(smoothBorderY==-1) te= <a class="code" href="namespaceNL3D.html#a391">noiseFloorF</a>(te), coefY=<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>-te; +00840 <font class="keywordflow">else</font> te= <a class="code" href="namespaceNL3D.html#a392">noiseCeilF</a>(te), coefY=te-<a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>; +00841 +00842 +00843 <font class="comment">// To have smooth continuities with smooth on edge (if any), we must do this.</font> +00844 CVector rx, ry; +00845 <font class="comment">// Compute a smooth with my X neighbor.</font> +00846 rx= <a class="code" href="classNL3D_1_1CPatch.html#z685_7">computeNormalEdgeSmooth</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, smoothBorderX, 0); +00847 <font class="comment">// Compute a smooth with my Y neighbor.</font> +00848 ry= <a class="code" href="classNL3D_1_1CPatch.html#z685_7">computeNormalEdgeSmooth</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, 0, smoothBorderY); +00849 +00850 <font class="comment">// Blend the 2 result.</font> +00851 <font class="keywordflow">if</font>(coefY + coefX>0) +00852 { +00853 <font class="comment">// This the weight used to blend to 0.</font> +00854 <font class="keywordtype">float</font> maxCoef= max(coefY, coefX); +00855 <font class="comment">// This the weight used to blend beetween rx and ry.</font> +00856 <font class="keywordtype">float</font> ooSum= 1.0f / (coefY + coefX); +00857 <font class="keywordtype">float</font> blendCoefX= coefX * ooSum; +00858 <font class="keywordtype">float</font> blendCoefY= coefY * ooSum; +00859 +00860 <font class="keywordflow">return</font> maxCoef* (rx*blendCoefY + ry*blendCoefX); +00861 } +00862 <font class="keywordflow">else</font> +00863 { +00864 <font class="keywordflow">return</font> CVector::Null; +00865 } +00866 } +00867 } +00868 +00869 +00870 +00871 <font class="comment">// ***************************************************************************</font> +<a name="l00872"></a><a class="code" href="classNL3D_1_1CPatch.html#z685_10">00872</a> <font class="keywordtype">void</font> CPatch::computeNoise(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, CVector &displace)<font class="keyword"> const</font> +00873 <font class="keyword"></font>{ +00874 <font class="keywordtype">float</font> so= <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>*<a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>; +00875 <font class="keywordtype">float</font> to= <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>*<a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>; +00876 +00877 +00878 <font class="comment">// Pre-Compute Border Smothing.</font> +00879 <font class="comment">//=========================</font> +00880 <font class="comment">// If we are on a border, flag it.</font> +00881 sint8 smoothNormalBorderX= 0; +00882 sint8 smoothNormalBorderY= 0; +00883 <font class="comment">// NB: because OrderS and OrderT >=2, smoothNormalBorderX=-1 and smoothNormalBorderX=1 are exclusive (as smoothNormalBorderY).</font> +00884 <font class="keywordflow">if</font>(so < 1) smoothNormalBorderX= -1; +00885 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(so > <a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>-1) smoothNormalBorderX= 1; +00886 <font class="keywordflow">if</font>(to < 1) smoothNormalBorderY= -1; +00887 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(to > <a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>-1) smoothNormalBorderY= 1; +00888 +00889 <font class="keywordtype">bool</font> smoothNormalEdge= (smoothNormalBorderX!=0) != (smoothNormalBorderY!=0); +00890 <font class="keywordtype">bool</font> smoothNormalCorner= (smoothNormalBorderX!=0) && (smoothNormalBorderY!=0); +00891 +00892 +00893 <font class="comment">// Do same thing, but to know if we must compute a displace on an interior, on an edge or on a corner.</font> +00894 sint8 smoothDisplaceBorderX= 0; +00895 sint8 smoothDisplaceBorderY= 0; +00896 <font class="comment">// NB: because OrderS and OrderT >=2, smoothBorderX=-1 and smoothBorderX=1 are exclusive (as smoothBorderY).</font> +00897 <font class="keywordflow">if</font>(so < 0.5) smoothDisplaceBorderX= -1; +00898 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(so > <a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>-0.5) smoothDisplaceBorderX= 1; +00899 <font class="keywordflow">if</font>(to < 0.5) smoothDisplaceBorderY= -1; +00900 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(to > <a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>-0.5) smoothDisplaceBorderY= 1; +00901 +00902 <font class="keywordtype">bool</font> smoothDisplaceEdge= (smoothDisplaceBorderX!=0) != (smoothDisplaceBorderY!=0); +00903 <font class="keywordtype">bool</font> smoothDisplaceCorner= (smoothDisplaceBorderX!=0) && (smoothDisplaceBorderY!=0); +00904 +00905 +00906 <font class="comment">// Compute Displace value.</font> +00907 <font class="comment">//=========================</font> +00908 <font class="keywordtype">float</font> displaceValue; +00909 +00910 <font class="keywordflow">if</font>(smoothDisplaceCorner) +00911 displaceValue= <a class="code" href="classNL3D_1_1CPatch.html#z685_6">computeDisplaceCornerSmooth</a>(so, to, smoothDisplaceBorderX, smoothDisplaceBorderY); +00912 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothDisplaceEdge) +00913 displaceValue= <a class="code" href="classNL3D_1_1CPatch.html#z685_5">computeDisplaceEdgeSmooth</a>(so, to, smoothDisplaceBorderX, smoothDisplaceBorderY); +00914 <font class="keywordflow">else</font> +00915 displaceValue= <a class="code" href="classNL3D_1_1CPatch.html#z685_4">computeDisplaceInteriorSmooth</a>(so, to); +00916 +00917 +00918 +00919 <font class="comment">// Compute Displace normal.</font> +00920 <font class="comment">//=========================</font> +00921 +00922 <font class="comment">// Evaluate the normal.</font> +00923 CVector displaceNormal; +00924 +00925 +00926 <font class="comment">// smooth on edges and on corners.</font> +00927 <font class="keywordflow">if</font>(smoothNormalCorner) +00928 displaceNormal= <a class="code" href="classNL3D_1_1CPatch.html#z685_8">computeNormalCornerSmooth</a>(so, to, smoothNormalBorderX, smoothNormalBorderY); +00929 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(smoothNormalEdge) +00930 displaceNormal= <a class="code" href="classNL3D_1_1CPatch.html#z685_7">computeNormalEdgeSmooth</a>(so, to, smoothNormalBorderX, smoothNormalBorderY); +00931 <font class="keywordflow">else</font> +00932 { +00933 <font class="comment">// unpack...</font> +00934 CBezierPatch *bpatch= <a class="code" href="classNL3D_1_1CPatch.html#a45">unpackIntoCache</a>(); +00935 <font class="comment">// eval.</font> +00936 displaceNormal= bpatch->evalNormal(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>); +00937 } +00938 +00939 +00940 +00941 <font class="comment">// Final result.</font> +00942 <font class="comment">//=========================</font> +00943 displace= displaceNormal * displaceValue; +00944 } +00945 +00946 +00947 +00948 <font class="comment">// ***************************************************************************</font> +<a name="l00949"></a><a class="code" href="classNL3D_1_1CPatch.html#z668_0">00949</a> <font class="keywordtype">void</font> CPatch::setCornerSmoothFlag(uint corner, <font class="keywordtype">bool</font> smooth) +00950 { +00951 <a class="code" href="debug_8h.html#a6">nlassert</a>(corner<=3); +00952 uint mask= 1<<corner; +00953 <font class="keywordflow">if</font>(smooth) +00954 <a class="code" href="classNL3D_1_1CPatch.html#z668_3">_CornerSmoothFlag</a>|= mask; +00955 <font class="keywordflow">else</font> +00956 <a class="code" href="classNL3D_1_1CPatch.html#z668_3">_CornerSmoothFlag</a>&= ~mask; +00957 } +00958 +00959 <font class="comment">// ***************************************************************************</font> +<a name="l00960"></a><a class="code" href="classNL3D_1_1CPatch.html#z668_1">00960</a> <font class="keywordtype">bool</font> CPatch::getCornerSmoothFlag(uint corner)<font class="keyword"> const</font> +00961 <font class="keyword"></font>{ +00962 <a class="code" href="debug_8h.html#a6">nlassert</a>(corner<=3); +00963 uint mask= 1<<corner; +00964 <font class="keywordflow">return</font> (<a class="code" href="classNL3D_1_1CPatch.html#z668_3">_CornerSmoothFlag</a>& mask)!=0; +00965 } +00966 +00967 +00968 } <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> |