1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
|
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<HTML>
<HEAD>
<TITLE>nevrax.org : docs</TITLE>
<LINK REL=stylesheet TYPE="text/css" HREF="/inc/css/nevrax.css">
<link href="doxygen.css" rel="stylesheet" type="text/css">
</HEAD>
<BODY MARGINHEIGHT="0" MARGINWIDTH="0">
<!-- uplinks -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0>
<TR>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD WIDTH=140 BGCOLOR=#dddddd><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle> <A CLASS=uplinks HREF=><b>Home</B></FONT></A> </TD>
<TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle> <A CLASS=uplinks HREF=><b>nevrax.com</B></FONT></A> </TD>
</TR>
</TABLE>
<!-- banner Nevrax -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0 WIDTH=100%>
<TR><TD BGCOLOR="#000000" BACKGROUND="/inc/img/black_banner.jpg"><A HREF=""><IMG SRC="/inc/img/nevrax.gif" WIDTH="170" HEIGHT="45" BORDER=0 ALT="Nevrax" ></A></TD></TR>
</TABLE>
<!-- main table -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0 height=100%>
<TR>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="10" BORDER=0 ALT=""></TD>
<TD WIDTH=140 BGCOLOR=#dddddd VALIGN=TOP ALIGN=middle><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">
<!------ Begin Box ------>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 BGCOLOR=black><TR><TD><TABLE border=0 cellspacing=2 cellpadding=0 width=120><tr><TD ALIGN=middle bgcolor=black>
<FONT COLOR=white FACE="sans-serif"><B>Nevrax.org</B></FONT></TD></TR><tr><td colspan=2 bgcolor=#FFFFFF>
<TABLE cellspacing=0 cellpadding=1 border=0>
<tr><td ALIGN=middle><a class='linkbox' href="/news/" TITLE="Rubrique news"><img width=13 height=15 hspace=5 border=0 src=/inc/img/picto-news.gif ALT=#></A></td><td><a class='linkbox' href="/news/" TITLE="News">News</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/mail/" TITLE="Rubrique mail"><img width=15 height=11 hspace=5 border=0 src=/inc/img/picto-mail.gif ALT=#></A></td><td><a class='linkbox' href="/mail/" TITLE="Mailing list archive">Mailing-list</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/docs/" TITLE="Rubrique docs"><img width=14 height=16 hspace=5 border=0 src=/inc/img/picto-docs.gif ALT=#></A></td><td><a class='linkbox' href="/docs/" TITLE="Documentation">Documentation</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/cvs/" TITLE="Rubrique cvs"><img width=13 height=17 hspace=5 border=0 src=/inc/img/picto-cvs.gif ALT=#></A></td><td><a class='linkbox' href="/cvs/" TITLE="CVS Web">CVS</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/bugs/" TITLE="Rubrique bugs"><img width=20 height=16 hspace=5 border=0 src=/inc/img/picto-bugs.gif ALT=#></A></td><td><a class='linkbox' href="/bugs/" TITLE="Bugtracking">Bugs</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/GPL.php3" TITLE="Rubrique license"><img width=18 height=12 hspace=5 border=0 src=/inc/img/picto-gpl.gif ALT=#></A></td><td><a class='linkbox' href="/GPL.php3" TITLE="License">License</a></td></tr>
</TABLE>
</TD></TR></TABLE></TD></TR></TABLE>
<!------ End Box ------>
</TD>
<TD WIDTH=15><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD ALIGN=left valign=top><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">
<!-- title -->
<TABLE background="/inc/img/redline.gif" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td>
<A HREF="/docs/"><img src="/inc/img/t_docs.gif" ALT="Docs" HEIGHT=20 BORDER=0></A>
</td><td><IMG SRC="/inc/img/pixel.gif" WIDTH="1" HEIGHT="1" BORDER=0 ALT="">
</td></tr></table>
<!-- block -->
<TABLE bgcolor="#dddddd" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td width=1% valign=middle><img width=6 height=14 hspace=2 vspace=2 src="/inc/img/reddots.gif"></TD>
<TD><B>Documentation</B></TD>
<TD ALIGN=RIGHT> </td>
</tr></table>
<!-- Generated by Doxygen 1.2.14 -->
<center>
<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/cgi-bin/nel-search.cgi">Search</a> </center>
<hr><h1>patch_vegetable.cpp</h1><a href="patch__vegetable_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
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="vegetable_8h.html">3d/vegetable.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="vegetable__manager_8h.html">3d/vegetable_manager.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="landscape__vegetable__block_8h.html">3d/landscape_vegetable_block.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="fast__floor_8h.html">3d/fast_floor.h</a>"</font>
00037 <font class="preprocessor">#include "<a class="code" href="tile__vegetable__desc_8h.html">3d/tile_vegetable_desc.h</a>"</font>
00038 <font class="preprocessor">#include "<a class="code" href="vegetable__light__ex_8h.html">3d/vegetable_light_ex.h</a>"</font>
00039 <font class="preprocessor">#include "<a class="code" href="patchdlm__context_8h.html">3d/patchdlm_context.h</a>"</font>
00040
00041
00042 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00043 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00044
00045 <font class="keyword">namespace </font>NL3D
00046 {
00047
00048
00049 <font class="comment">// ***************************************************************************</font>
<a name="l00050"></a><a class="code" href="classNL3D_1_1CPatch.html#z686_2">00050</a> <font class="keywordtype">void</font> CPatch::generateTileVegetable(CVegetableInstanceGroup *vegetIg, uint distType, uint ts, uint tt,
00051 CLandscapeVegetableBlockCreateContext &vbCreateCtx)
00052 {
00053 uint i;
00054
00055 <font class="comment">// Get tile infos for vegetable</font>
00056 <font class="comment">// =========================</font>
00057
00058 <font class="comment">// Get the state for this vegetable tile</font>
00059 CTileElement::TVegetableInfo vegetWaterState= <a class="code" href="classNL3D_1_1CPatch.html#m4">Tiles</a>[tt * <a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a> + ts].getVegetableState();
00060 <font class="comment">// If vegetable disabled, skip!</font>
00061 <font class="keywordflow">if</font>(vegetWaterState == CTileElement::VegetableDisabled)
00062 <font class="keywordflow">return</font>;
00063
00064 <font class="comment">// get the tileId under this tile (<=> the tile material)</font>
00065 uint tileId= <a class="code" href="classNL3D_1_1CPatch.html#m4">Tiles</a>[tt * <a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a> + ts].Tile[0];
00066
00067 <font class="comment">// get list of vegetable for this tile, and for hist distanceType category.</font>
00068 <font class="keyword">const</font> CTileVegetableDesc &tileVegetDesc= <a class="code" href="classNL3D_1_1CPatch.html#a4">getLandscape</a>()->getTileVegetableDesc(tileId);
00069 <font class="keyword">const</font> std::vector<CVegetable> &vegetableList= tileVegetDesc.getVegetableList(distType);
00070 uint distAddSeed= tileVegetDesc.getVegetableSeed(distType);
00071 uint numVegetable= vegetableList.size();
00072
00073 <font class="comment">// If no vegetables at all, skip.</font>
00074 <font class="keywordflow">if</font>(numVegetable==0)
00075 <font class="keywordflow">return</font>;
00076
00077 <font class="comment">// compute approximate tile position and normal: get the middle</font>
00078 <font class="keywordtype">float</font> tileU= (ts + 0.5f) / (float)<a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>;
00079 <font class="keywordtype">float</font> tileV= (tt + 0.5f) / (float)<a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>;
00080 CBezierPatch *bpatch= <a class="code" href="classNL3D_1_1CPatch.html#a45">unpackIntoCache</a>();
00081 <font class="comment">// Get approximate position for the tile (usefull for noise). NB: eval() is faster than computeVertex().</font>
00082 CVector tilePos= bpatch->eval(tileU, tileV);
00083 <font class="comment">// Get also the normal used for all instances on this tile (not precise, </font>
00084 <font class="comment">// don't take noise into account, but faster).</font>
00085 CVector tileNormal= bpatch->evalNormal(tileU, tileV);
00086
00087 <font class="comment">// Compute also position on middle of 4 edges of this tile, for generateGroupBiLinear().</font>
00088 CVector tilePosBiLinear[4];
00089 <font class="keywordtype">float</font> OOos= 1.0f / <a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>;
00090 <font class="keywordtype">float</font> OOot= 1.0f / <a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a>;
00091 tilePosBiLinear[0]= bpatch->eval( (ts + 0.0f) * OOos, (tt + 0.5f) * OOot);
00092 tilePosBiLinear[1]= bpatch->eval( (ts + 1.0f) * OOos, (tt + 0.5f) * OOot);
00093 tilePosBiLinear[2]= bpatch->eval( (ts + 0.5f) * OOos, (tt + 0.0f) * OOot);
00094 tilePosBiLinear[3]= bpatch->eval( (ts + 0.5f) * OOos, (tt + 1.0f) * OOot);
00095
00096
00097 <font class="comment">// compute a rotation matrix with the normal</font>
00098 CMatrix matInstance;
00099 matInstance.setRot(CVector::I, CVector::J, tileNormal);
00100 <font class="comment">// must normalize the matrix. use the vector which is the most orthogonal to tileNormal</font>
00101 <font class="comment">// If tileNormal is much more a J vector, then use plane (I,tileNormal), and vice-versa</font>
00102 <font class="keywordflow">if</font>(fabs(tileNormal.y) > fabs(tileNormal.x))
00103 matInstance.normalize(CMatrix::ZXY);
00104 <font class="keywordflow">else</font>
00105 matInstance.normalize(CMatrix::ZYX);
00106
00107
00108 <font class="comment">// prepare color / lighting</font>
00109 <font class="comment">// =========================</font>
00110
00111 <font class="comment">// say that ambient never change. VegetableManager handle the ambient and diffuse itself (for precomputeLighting)</font>
00112 CRGBAF ambientF= CRGBAF(1,1,1,1);
00113
00114 <font class="comment">// Compute the tileLightmap (not modified by tileColor).</font>
00115 <font class="keyword">static</font> uint8 tileLumelmap[<a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a> * <a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>];
00116 <a class="code" href="classNL3D_1_1CPatch.html#z686_3">getTileLumelmapPrecomputed</a>(ts, tt, tileLumelmap, <a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>);
00117 <font class="comment">// compute diffuse color by substracting from ambient.</font>
00118 CRGBAF diffuseColorF[<a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a> * <a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>];
00119 <font class="comment">// TODO_VEGET_OPTIM: optimize this.</font>
00120 <font class="comment">// For all lumel of this tile.</font>
00121 <font class="keywordflow">for</font>(i= 0; i<<a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>*<a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>; i++)
00122 {
00123 <font class="comment">// mul by 2, because shade is done twice here: by vertex, and by landscape.</font>
00124 sint tileLumel= 2*tileLumelmap[i];
00125 tileLumel= <a class="code" href="bit__set_8cpp.html#a0">min</a>(tileLumel, 255);
00126 <font class="keywordtype">float</font> tlf= tileLumel / 255.f;
00127 diffuseColorF[i].R= tlf;
00128 diffuseColorF[i].G= tlf;
00129 diffuseColorF[i].B= tlf;
00130 diffuseColorF[i].A= 1;
00131 }
00132
00133 <font class="comment">// Compute The CVegetableLightEx, adding pointLight effect to vegetation</font>
00134 <font class="comment">// First get pointLight at this tiles.</font>
00135 <font class="keyword">static</font> vector<CPointLightInfluence> lightList;
00136 lightList.clear();
00137 <a class="code" href="classNL3D_1_1CPatch.html#z671_1">appendTileLightInfluences</a>( CUV(tileU, tileV), lightList);
00138 <font class="comment">// for each light, modulate the factor of influence</font>
00139 <font class="keywordflow">for</font>(i=0; i<lightList.size();i++)
00140 {
00141 CPointLight *pl= lightList[i].PointLight;
00142 <font class="comment">// compute the attenuation to the pos of the tile</font>
00143 <font class="keywordtype">float</font> att= pl->computeLinearAttenuation(tilePos);
00144 <font class="comment">// modulate the influence with this factor</font>
00145 lightList[i].BkupInfluence= lightList[i].Influence;
00146 lightList[i].Influence*= att;
00147 }
00148 <font class="comment">// sort the light by influence</font>
00149 sort(lightList.begin(), lightList.end());
00150 <font class="comment">// Setup the vegetLex directly in the ig. </font>
00151 CVegetableLightEx &vegetLex= vegetIg->VegetableLightEx;
00152 <font class="comment">// take only 2 first, computing direction to tilePos and computing attenuation.</font>
00153 vegetLex.NumLights= <a class="code" href="bit__set_8cpp.html#a0">min</a>((uint)CVegetableLightEx::MaxNumLight, lightList.size());
00154 <font class="keywordflow">for</font>(i=0;i<vegetLex.NumLights;i++)
00155 {
00156 CPointLight *pl= lightList[i].PointLight;
00157 <font class="comment">// copy to vegetLex.</font>
00158 vegetLex.PointLight[i]= pl;
00159 <font class="comment">// get the attenuation</font>
00160 vegetLex.PointLightFactor[i]= (uint)(256* lightList[i].Influence);
00161 <font class="comment">// Setup the direction from pointLight.</font>
00162 vegetLex.Direction[i]= tilePos - pl->getPosition();
00163 vegetLex.Direction[i].normalize();
00164 }
00165 <font class="comment">// compute now the current colors of the vegetLex.</font>
00166 vegetLex.computeCurrentColors();
00167
00168
00169 <font class="comment">// Compute Dynamic Lightmap UV for this tile.</font>
00170 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>);
00171 CUV dlmUV;
00172 <font class="comment">// get coordinate in 0..1 in texture.</font>
00173 dlmUV.U= <a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>->DLMUBias + <a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>->DLMUScale * tileU;
00174 dlmUV.V= <a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>->DLMVBias + <a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>->DLMVScale * tileV;
00175 <font class="comment">// get coordinate in 0..255.</font>
00176 CVegetableUV8 dlmUV8;
00177 dlmUV8.U= (uint8)<a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(dlmUV.U * 255 + 0.5f);
00178 dlmUV8.V= (uint8)<a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(dlmUV.V * 255 + 0.5f);
00179 <font class="comment">// bound them, ensuring 8Bits UV "uncompressed" by driver are in the lightmap area.</font>
00180 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(dlmUV8.U, <a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>->MinU8, <a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>->MaxU8);
00181 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(dlmUV8.V, <a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>->MinV8, <a class="code" href="classNL3D_1_1CPatch.html#z688_2">_DLMContext</a>->MaxV8);
00182
00183
00184 <font class="comment">// for all vegetable of this list, generate instances.</font>
00185 <font class="comment">// =========================</font>
00186
00187 <font class="comment">// Get an array for each vegetable (static for speed).</font>
00188 <font class="keyword">typedef</font> std::vector<NLMISC::CVector2f> TPositionVector;
00189 <font class="keyword">static</font> std::vector<TPositionVector> instanceUVArray;
00190 <font class="comment">// realloc if necessary.</font>
00191 <font class="keywordflow">if</font>(instanceUVArray.size() < numVegetable)
00192 {
00193 <font class="comment">// clean.</font>
00194 <a class="code" href="namespaceNLMISC.html#a222">contReset</a>(instanceUVArray);
00195 <font class="comment">// realloc.</font>
00196 instanceUVArray.resize(numVegetable);
00197 }
00198
00199 <font class="comment">// First, for each vegetable, generate the number of instance to create, and their relative position.</font>
00200 <font class="keywordflow">for</font>(i= 0; i<numVegetable; i++)
00201 {
00202 <font class="comment">// get the vegetable</font>
00203 <font class="keyword">const</font> CVegetable &veget= vegetableList[i];
00204
00205 <font class="comment">// generate instance for this vegetable.</font>
00206 veget.generateGroupBiLinear(tilePos, tilePosBiLinear, tileNormal, <a class="code" href="landscape__def_8h.html#a11">NL3D_PATCH_TILE_AREA</a>, i + distAddSeed, instanceUVArray[i]);
00207 }
00208
00209 <font class="comment">// Then, now that we kno how many instance to generate for each vegetable, reserve space.</font>
00210 CVegetableInstanceGroupReserve vegetIgReserve;
00211 <font class="keywordflow">for</font>(i= 0; i<numVegetable; i++)
00212 {
00213 <font class="comment">// get the vegetable</font>
00214 <font class="keyword">const</font> CVegetable &veget= vegetableList[i];
00215
00216 <font class="comment">// reseve instance space for this vegetable.</font>
00217 <font class="comment">// instanceUVArray[i].size() is the number of instances to create.</font>
00218 veget.reserveIgAddInstances(vegetIgReserve, (CVegetable::TVegetableWater)vegetWaterState, instanceUVArray[i].<a class="code" href="cf__lexical_8cpp.html#a94">size</a>());
00219 }
00220 <font class="comment">// actual reseve memory of the ig.</font>
00221 <a class="code" href="classNL3D_1_1CPatch.html#a4">getLandscape</a>()->_VegetableManager->reserveIgCompile(vegetIg, vegetIgReserve);
00222
00223
00224 <font class="comment">// generate the instances for all the vegetables.</font>
00225 <font class="keywordflow">for</font>(i= 0; i<numVegetable; i++)
00226 {
00227 <font class="comment">// get the vegetable</font>
00228 <font class="keyword">const</font> CVegetable &veget= vegetableList[i];
00229
00230 <font class="comment">// get the relatives position of the instances</font>
00231 std::vector<CVector2f> &instanceUV= instanceUVArray[i];
00232
00233 <font class="comment">// For all instance, generate the real instances.</font>
00234 <font class="keywordflow">for</font>(uint j=0; j<instanceUV.size(); j++)
00235 {
00236 <font class="comment">// generate the position in world Space.</font>
00237 <font class="comment">// instanceUV is in [0..1] interval, which maps to a tile, so explode to the patch</font>
00238 CVector instancePos;
00239 vbCreateCtx.eval(ts, tt, instanceUV[j].<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, instanceUV[j].<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>, instancePos);
00240 <font class="comment">// NB: use same normal for rotation for all instances in a same tile.</font>
00241 matInstance.setPos( instancePos );
00242
00243 <font class="comment">// peek color into the lightmap.</font>
00244 sint lumelS= <a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(instanceUV[j].<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a> * <a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>);
00245 sint lumelT= <a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(instanceUV[j].<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a> * <a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>);
00246 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(lumelS, 0, <a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>-1);
00247 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(lumelT, 0, <a class="code" href="patch_8h.html#a7">NL_LUMEL_BY_TILE</a>-1);
00248
00249 <font class="comment">// generate the instance of the vegetable</font>
00250 veget.generateInstance(vegetIg, matInstance, ambientF,
00251 diffuseColorF[ (lumelT<<<a class="code" href="patch_8h.html#a6">NL_LUMEL_BY_TILE_SHIFT</a>) + lumelS ],
00252 (distType+1) * <a class="code" href="vegetable__def_8h.html#a8">NL3D_VEGETABLE_BLOCK_ELTDIST</a>, (CVegetable::TVegetableWater)vegetWaterState, dlmUV8);
00253 }
00254 }
00255 }
00256
00257
00258 <font class="comment">// ***************************************************************************</font>
<a name="l00259"></a><a class="code" href="classNL3D_1_1CPatch.html#z674_1">00259</a> <font class="keywordtype">void</font> CPatch::recreateAllVegetableIgs()
00260 {
00261 <font class="comment">// For all TessBlocks, try to release their VegetableBlock</font>
00262 <font class="keywordflow">for</font>(uint numtb=0; numtb<<a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>.size(); numtb++)
00263 {
00264 <font class="comment">// if the vegetableBlock is deleted, and if there is at least one Material in the tessBlock, and if possible</font>
00265 <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>[numtb].VegetableBlock==NULL && <a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>[numtb].TileMaterialRefCount>0
00266 && <a class="code" href="classNL3D_1_1CPatch.html#a4">getLandscape</a>()->isVegetableActive())
00267 {
00268 <font class="comment">// compute tessBlock coordinate</font>
00269 uint tbWidth= <a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>>>1;
00270 uint ts= numtb&(tbWidth-1);
00271 uint tt= numtb/tbWidth;
00272 <font class="comment">// crate the vegetable with tilecooridante (ie tessBlock coord *2);</font>
00273 <a class="code" href="classNL3D_1_1CPatch.html#z686_0">createVegetableBlock</a>(numtb, ts*2, tt*2);
00274 }
00275 }
00276
00277 }
00278
00279
00280 <font class="comment">// ***************************************************************************</font>
<a name="l00281"></a><a class="code" href="classNL3D_1_1CPatch.html#z674_0">00281</a> <font class="keywordtype">void</font> CPatch::deleteAllVegetableIgs()
00282 {
00283 <font class="comment">// For all TessBlocks, try to release their VegetableBlock</font>
00284 <font class="keywordflow">for</font>(uint i=0; i<<a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>.size(); i++)
00285 {
00286 <a class="code" href="classNL3D_1_1CPatch.html#z686_1">releaseVegetableBlock</a>(i);
00287 }
00288
00289 }
00290
00291
00292 <font class="comment">// ***************************************************************************</font>
<a name="l00293"></a><a class="code" href="classNL3D_1_1CPatch.html#z686_0">00293</a> <font class="keywordtype">void</font> CPatch::createVegetableBlock(uint numTb, uint ts, uint tt)
00294 {
00295 <font class="comment">// TessBlock width</font>
00296 uint tbWidth= <a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a> >> 1;
00297 <font class="comment">// clipBlock width</font>
00298 uint nTbPerCb= <a class="code" href="patch_8h.html#a13">NL3D_PATCH_VEGETABLE_NUM_TESSBLOCK_PER_CLIPBLOCK</a>;
00299 uint cbWidth= (tbWidth + nTbPerCb-1) >> <a class="code" href="patch_8h.html#a12">NL3D_PATCH_VEGETABLE_NUM_TESSBLOCK_PER_CLIPBLOCK_SHIFT</a>;
00300
00301 <font class="comment">// compute tessBlock coordinate.</font>
00302 uint tbs ,tbt;
00303 tbs= ts >> 1;
00304 tbt= tt >> 1;
00305 <font class="comment">// compute clipBlock coordinate.</font>
00306 uint cbs,cbt;
00307 cbs= tbs >> <a class="code" href="patch_8h.html#a12">NL3D_PATCH_VEGETABLE_NUM_TESSBLOCK_PER_CLIPBLOCK_SHIFT</a>;
00308 cbt= tbt >> <a class="code" href="patch_8h.html#a12">NL3D_PATCH_VEGETABLE_NUM_TESSBLOCK_PER_CLIPBLOCK_SHIFT</a>;
00309
00310 <font class="comment">// create the vegetable block.</font>
00311 <a class="code" href="classNL3D_1_1CPatch.html#l2">CLandscapeVegetableBlock</a> *vegetBlock= <font class="keyword">new</font> <a class="code" href="classNL3D_1_1CPatch.html#l2">CLandscapeVegetableBlock</a>;
00312 <font class="comment">// Init / append to list.</font>
00313 <font class="comment">// compute center of the vegetableBlock (approx).</font>
00314 CBezierPatch *bpatch= <a class="code" href="classNL3D_1_1CPatch.html#a45">unpackIntoCache</a>();
00315 CVector center= bpatch->eval( (<font class="keywordtype">float</font>)(tbs*2+1)/<a class="code" href="classNL3D_1_1CPatch.html#o2">OrderS</a>, (<font class="keywordtype">float</font>)(tbt*2+1)/<a class="code" href="classNL3D_1_1CPatch.html#o3">OrderT</a> );
00316 <font class="comment">// Lower-Left tile is (tbs*2, tbt*2)</font>
00317 vegetBlock->init(center, <a class="code" href="classNL3D_1_1CPatch.html#a4">getLandscape</a>()->_VegetableManager, <a class="code" href="classNL3D_1_1CPatch.html#z679_0">VegetableClipBlocks</a>[cbt *cbWidth + cbs], <font class="keyword">this</font>, tbs*2, tbt*2, <a class="code" href="classNL3D_1_1CPatch.html#a4">getLandscape</a>()->_VegetableBlockList);
00318
00319 <font class="comment">// set in the tessBlock</font>
00320 <a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>[numTb].VegetableBlock= vegetBlock;
00321 }
00322
00323
00324 <font class="comment">// ***************************************************************************</font>
<a name="l00325"></a><a class="code" href="classNL3D_1_1CPatch.html#z686_1">00325</a> <font class="keywordtype">void</font> CPatch::releaseVegetableBlock(uint numTb)
00326 {
00327 <font class="comment">// if exist, must delete the VegetableBlock.</font>
00328 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>[numTb].VegetableBlock)
00329 {
00330 <font class="comment">// delete Igs, and remove from list.</font>
00331 <a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>[numTb].VegetableBlock->release(<a class="code" href="classNL3D_1_1CPatch.html#a4">getLandscape</a>()->_VegetableManager, <a class="code" href="classNL3D_1_1CPatch.html#a4">getLandscape</a>()->_VegetableBlockList);
00332 <font class="comment">// delete.</font>
00333 <font class="keyword">delete</font> <a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>[numTb].VegetableBlock;
00334 <a class="code" href="classNL3D_1_1CPatch.html#z678_1">TessBlocks</a>[numTb].VegetableBlock= NULL;
00335 }
00336 }
00337
00338
00339
00340
00341
00342 } <font class="comment">// NL3D</font>
</pre></div>
<!-- footer -->
<BR><FONT Size=+5> </FONT>
</TD>
<TD WIDTH=15><IMG SRC=/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD>
</TR>
</TABLE>
</BODY>
</HTML>
|
