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
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
|
<!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>water_model.cpp</h1><a href="water__model_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="vector__2d_8h.html">nel/misc/vector_2d.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="vector__h_8h.html">nel/misc/vector_h.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="hierarchical__timer_8h.html">nel/misc/hierarchical_timer.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="animation__time_8h.html">nel/3d/animation_time.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="water__model_8h.html">3d/water_model.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="water__shape_8h.html">3d/water_shape.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="water__pool__manager_8h.html">3d/water_pool_manager.h</a>"</font>
00035 <font class="preprocessor">#include "<a class="code" href="water__height__map_8h.html">3d/water_height_map.h</a>"</font>
00036 <font class="preprocessor">#include "<a class="code" href="dru_8h.html">3d/dru.h</a>"</font>
00037 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font>
00038 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00039 <font class="preprocessor">#include "<a class="code" href="render__trav_8h.html">3d/render_trav.h</a>"</font>
00040 <font class="preprocessor">#include "<a class="code" href="anim__detail__trav_8h.html">3d/anim_detail_trav.h</a>"</font>
00041
00042
00043
00044
00045 <font class="keyword">namespace </font>NL3D {
00046
00047
00048 <font class="comment">//=======================================================================</font>
00049
<a name="l00050"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a0">00050</a> CWaterModel::CWaterModel() : _Scene(NULL)
00051 {
00052 <a class="code" href="classNL3D_1_1CTransform.html#a1">setOpacity</a>(<font class="keyword">false</font>);
00053 <a class="code" href="classNL3D_1_1CTransform.html#a0">setTransparency</a>(<font class="keyword">true</font>);
00054 <a class="code" href="classNL3D_1_1CTransform.html#a4">setOrderingLayer</a>(1);
00055 }
00056
00057 <font class="comment">//=======================================================================</font>
00058
<a name="l00059"></a><a class="code" href="classNL3D_1_1CWaterModel.html#d0">00059</a> <font class="keywordtype">void</font> CWaterModel::registerBasic()
00060 {
00061 CMOT::registerModel(<a class="code" href="namespaceNL3D.html#a310">WaterModelClassId</a>, <a class="code" href="namespaceNL3D.html#a277">TransformShapeId</a>, CWaterModel::creator);
00062 CMOT::registerObs(<a class="code" href="namespaceNL3D.html#a232">RenderTravId</a>, <a class="code" href="namespaceNL3D.html#a310">WaterModelClassId</a>, CWaterRenderObs::creator);
00063 }
00064
00065
00066 <font class="comment">//=======================================================================</font>
00067
<a name="l00068"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a1">00068</a> ITrack* CWaterModel::getDefaultTrack (uint valueId)
00069 {
00070 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00071 <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws = NLMISC::safe_cast<CWaterShape *>((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00072 <font class="keywordflow">switch</font> (valueId)
00073 {
00074 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z872_0s5">PosValue</a>: <font class="keywordflow">return</font> ws->getDefaultPos(); <font class="keywordflow">break</font>;
00075 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z872_0s8">ScaleValue</a>: <font class="keywordflow">return</font> ws->getDefaultScale(); <font class="keywordflow">break</font>;
00076 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z872_0s7">RotQuatValue</a>: <font class="keywordflow">return</font> ws->getDefaultRotQuat(); <font class="keywordflow">break</font>;
00077 <font class="keywordflow">default</font>: <font class="comment">// delegate to parent</font>
00078 <font class="keywordflow">return</font> CTransformShape::getDefaultTrack(valueId);
00079 <font class="keywordflow">break</font>;
00080 }
00081 }
00082
00083 <font class="comment">//=======================================================================</font>
00084
<a name="l00085"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a2">00085</a> uint32 CWaterModel::getWaterHeightMapID()<font class="keyword"> const</font>
00086 <font class="keyword"></font>{
00087 <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws = NLMISC::safe_cast<CWaterShape *>((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00088 <font class="keywordflow">return</font> ws->_WaterPoolID;
00089 }
00090
00091 <font class="comment">//=======================================================================</font>
00092
<a name="l00093"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a3">00093</a> <font class="keywordtype">float</font> CWaterModel::getHeightFactor()<font class="keyword"> const</font>
00094 <font class="keyword"></font>{
00095 <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws = NLMISC::safe_cast<CWaterShape *>((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00096 <font class="keywordflow">return</font> ws->_WaveHeightFactor;
00097 }
00098
00099
00100 <font class="comment">//=======================================================================</font>
00101
<a name="l00102"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a4">00102</a> <font class="keywordtype">float</font> CWaterModel::getHeight(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html">NLMISC::CVector2f</a> &pos)
00103 {
00104 <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws = NLMISC::safe_cast<CWaterShape *>((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00105 CWaterHeightMap &whm = <a class="code" href="namespaceNL3D.html#a480">GetWaterPoolManager</a>().getPoolByID(ws->_WaterPoolID);
00106 <font class="keyword">const</font> <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> = whm.getHeight(pos);
00107 <font class="keywordflow">return</font> <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> * ws->_WaveHeightFactor + this-><a class="code" href="classNL3D_1_1ITransformable.html#z870_7">getPos</a>().z;
00108 }
00109
00110 <font class="comment">//=======================================================================</font>
00111
<a name="l00112"></a><a class="code" href="classNL3D_1_1CWaterModel.html#a5">00112</a> <font class="keywordtype">float</font> CWaterModel::getAttenuatedHeight(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html">NLMISC::CVector2f</a> &pos, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &viewer)
00113 {
00114 <a class="code" href="classNL3D_1_1CWaterModel.html#l1">CWaterShape</a> *ws = NLMISC::safe_cast<CWaterShape *>((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
00115 CWaterHeightMap &whm = <a class="code" href="namespaceNL3D.html#a480">GetWaterPoolManager</a>().getPoolByID(ws->_WaterPoolID);
00116 <font class="keyword">const</font> <font class="keywordtype">float</font> maxDist = whm.getUnitSize() * (whm.getSize() >> 1);
00117 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> planePos(pos.<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>, pos.<a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>, this->getPos().z);
00118 <font class="keyword">const</font> <font class="keywordtype">float</font> userDist = (planePos - viewer).norm();
00119
00120 <font class="keywordflow">if</font> (userDist > maxDist)
00121 {
00122 <font class="keywordflow">return</font> this-><a class="code" href="classNL3D_1_1ITransformable.html#z870_7">getPos</a>().z;
00123 }
00124 <font class="keywordflow">else</font>
00125 {
00126 <font class="keyword">const</font> <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> = whm.getHeight(pos);
00127 <font class="keywordflow">return</font> ws->_WaveHeightFactor * <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a> * (1.f - userDist / maxDist) + this-><a class="code" href="classNL3D_1_1ITransformable.html#z870_7">getPos</a>().z;
00128 }
00129 }
00130
00131
00132 <font class="comment">//=======================================================================</font>
00133
00134 <font class="comment">// perform a bilinear on 4 values</font>
00135 <font class="comment">// 0---1</font>
00136 <font class="comment">// | |</font>
00137 <font class="comment">// 3---2</font>
00138 <font class="keyword">static</font> <font class="keywordtype">float</font> <font class="keyword">inline</font> <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(<font class="keywordtype">float</font> v0, <font class="keywordtype">float</font> v1, <font class="keywordtype">float</font> v2, <font class="keywordtype">float</font> v3, <font class="keywordtype">float</font> u, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)
00139 {
00140 <font class="keywordtype">float</font> g = <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> * v3 + (1.f - <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) * v0;
00141 <font class="keywordtype">float</font> h = <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> * v2 + (1.f - <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) * v1;
00142 <font class="keywordflow">return</font> u * h + (1.f - u) * g;
00143 }
00144
00145
00146
00147 <font class="comment">//=======================================================================</font>
00148
00150 <font class="keyword">static</font> <font class="keywordtype">void</font> <font class="keyword">inline</font> <a class="code" href="namespaceNL3D.html#a476">FillWaterVB</a>(uint8 *&vbPointer, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a366">z</a>, <font class="keywordtype">float</font> nx, <font class="keywordtype">float</font> ny)
00151 {
00152 * (<font class="keywordtype">float</font> *) vbPointer = <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>;
00153 ((<font class="keywordtype">float</font> *) vbPointer)[1] = <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>;
00154 ((<font class="keywordtype">float</font> *) vbPointer)[2] = <a class="code" href="driver__opengl__extension__def_8h.html#a366">z</a>;
00155 *((<font class="keywordtype">float</font> *) (vbPointer + 3 * <font class="keyword">sizeof</font>(float))) = nx;
00156 *((<font class="keywordtype">float</font> *) (vbPointer + 4 * <font class="keyword">sizeof</font>(float))) = ny;
00157 vbPointer += 5 * <font class="keyword">sizeof</font>(float);
00158 }
00159
00160 <font class="comment">//***************************************************************************************************************</font>
00161
00162
00164 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00165 <font class="preprocessor"></font> __forceinline
00166 <font class="preprocessor">#endif</font>
00167 <font class="preprocessor"></font><font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a477">SetupWaterVertex</a>( sint qLeft,
00168 sint qRight,
00169 sint qUp,
00170 sint qDown,
00171 sint qSubLeft,
00172 sint qSubDown,
00173 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &inter,
00174 <font class="keywordtype">float</font> invWaterRatio,
00175 sint doubleWaterHeightMapSize,
00176 CWaterHeightMap &whm,
00177 uint8 *&vbPointer,
00178 <font class="keywordtype">float</font> offsetX,
00179 <font class="keywordtype">float</font> offsetY
00180 )
00181 {
00182 <font class="keyword">const</font> <font class="keywordtype">float</font> wXf = invWaterRatio * (inter.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + offsetX);
00183 <font class="keyword">const</font> <font class="keywordtype">float</font> wYf = invWaterRatio * (inter.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + offsetY);
00184
00185 sint wx = (sint) floorf(wXf);
00186 sint wy = (sint) floorf(wYf);
00187
00188
00189
00190 <font class="keywordflow">if</font> (!
00191 (wx >= qLeft && wx < qRight && wy < qUp && wy >= qDown)
00192 )
00193 {
00194 <font class="comment">// no perturbation is visible</font>
00195 <a class="code" href="namespaceNL3D.html#a476">FillWaterVB</a>(vbPointer, inter.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, inter.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, 0, 0, 0);
00196 }
00197 <font class="keywordflow">else</font>
00198 {
00199
00200
00201 <font class="comment">// filter height and gradient at the given point</font>
00202 <font class="keyword">const</font> sint <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> = doubleWaterHeightMapSize;
00203
00204
00205 <font class="keyword">const</font> uint xm = (uint) (wx - qSubLeft);
00206 <font class="keyword">const</font> uint ym = (uint) (wy - qSubDown);
00207 <font class="keyword">const</font> sint <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> = xm + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> * ym;
00208 <font class="keyword">const</font> <font class="keywordtype">float</font> *ptWater = whm.getPointer() + <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>;
00209
00210 <font class="comment">/* float epsilon = 10E-5f;</font>
00211 <font class="comment"> if (ptWater[0] > epsilon || ptWater[0] < epsilon </font>
00212 <font class="comment"> || ptWater[1] > epsilon || ptWater[1] < epsilon </font>
00213 <font class="comment"> || ptWater[stride] > epsilon || ptWater[stride] < epsilon</font>
00214 <font class="comment"> || ptWater[stride + 1] > epsilon || ptWater[stride + 1] < epsilon</font>
00215 <font class="comment"> )</font>
00216 <font class="comment"> {*/</font>
00217
00218 <font class="keywordtype">float</font> deltaU = wXf - wx;
00219 <font class="keywordtype">float</font> deltaV = wYf - wy;
00220 <a class="code" href="debug_8h.html#a6">nlassert</a>(deltaU >= 0.f && deltaU <= 1.f && deltaV >= 0.f && deltaV <= 1.f);
00221 <font class="keyword">const</font> <font class="keywordtype">float</font> *ptWaterPrev = whm.getPrevPointer() + <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a>;
00222
00223
00224
00225 <font class="keywordtype">float</font> g0x, g1x, g2x, g3x; <font class="comment">// x gradient for current </font>
00226 <font class="keywordtype">float</font> g0xp, g1xp, g2xp, g3xp;
00227
00228 <font class="keywordtype">float</font> gradCurrX, gradCurrY;
00229
00230 <font class="keywordtype">float</font> g0y, g1y, g2y, g3y; <font class="comment">// y gradient for previous map</font>
00231 <font class="keywordtype">float</font> g0yp, g1yp, g2yp, g3yp;
00232
00233 <font class="keywordtype">float</font> gradPrevX, gradPrevY;
00234
00236
00237 g0x = ptWater[ 1] - ptWater[ - 1];
00238 g1x = ptWater[ 2] - ptWater[ 0 ];
00239 g2x = ptWater[ 2 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWater[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00240 g3x = ptWater[ 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWater[ - 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00241
00242 gradCurrX = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(g0x, g1x, g2x, g3x, deltaU, deltaV);
00243
00244
00245 g0y = ptWater[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWater[ - <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00246 g1y = ptWater[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + 1] - ptWater[ - <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + 1];
00247 g2y = ptWater[ (<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> << 1) + 1] - ptWater[ 1];
00248 g3y = ptWater[ (<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> << 1)] - ptWater[0];
00249
00250 gradCurrY = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(g0y, g1y, g2y, g3y, deltaU, deltaV);
00251
00253
00254 g0xp = ptWaterPrev[ 1] - ptWaterPrev[ - 1];
00255 g1xp = ptWaterPrev[ 2] - ptWaterPrev[ 0 ];
00256 g2xp = ptWaterPrev[ 2 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWaterPrev[ + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00257 g3xp = ptWaterPrev[ 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWaterPrev[ - 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00258
00259 gradPrevX = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(g0xp, g1xp, g2xp, g3xp, deltaU, deltaV);
00260
00261
00262 g0yp = ptWaterPrev[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>] - ptWaterPrev[ - <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>];
00263 g1yp = ptWaterPrev[ <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + 1] - ptWaterPrev[ - <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> + 1];
00264 g2yp = ptWaterPrev[ (<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> << 1) + 1] - ptWaterPrev[ 1 ];
00265 g3yp = ptWaterPrev[ (<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a> << 1)] - ptWaterPrev[ 0 ];
00266
00267 gradPrevY = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(g0yp, g1yp, g2yp, g3yp, deltaU, deltaV);
00268
00269
00271 <font class="keywordtype">float</font> h = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(ptWater[ 0 ], ptWater[ + 1], ptWater[ 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>], ptWater[<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>], deltaU, deltaV);
00272
00274 <font class="keywordtype">float</font> hPrev = <a class="code" href="namespaceNL3D.html#a475">BilinFilter</a>(ptWaterPrev[ 0 ], ptWaterPrev[ 1], ptWaterPrev[ 1 + <a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>], ptWaterPrev[<a class="code" href="driver__opengl__extension__def_8h.html#a374">stride</a>], deltaU, deltaV);
00275
00276
00277 <font class="keywordtype">float</font> timeRatio = whm.getBufferRatio();
00278
00279
00280 <a class="code" href="namespaceNL3D.html#a476">FillWaterVB</a>(vbPointer, inter.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, inter.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, timeRatio * h + (1.f - timeRatio) * hPrev,
00281 4.5f * (timeRatio * gradCurrX + (1.f - timeRatio) * gradPrevX),
00282 4.5f * (timeRatio * gradCurrY + (1.f - timeRatio) * gradPrevY)
00283 );
00284
00285
00286
00287 <font class="comment">//NLMISC::CVector2f *ptGrad = whm.getGradPointer() + offset;</font>
00288
00289
00290
00291
00292
00293 <font class="comment">/* float dh1 = deltaV * ptWater[stride] + (1.f - deltaV) * ptWater[0];</font>
00294 <font class="comment"> float dh2 = deltaV * ptWater[stride + 1] + (1.f - deltaV) * ptWater[1];</font>
00295 <font class="comment"> float h = deltaU * dh2 + (1.f - deltaU ) * dh1;</font>
00296 <font class="comment"></font>
00297 <font class="comment"> </font>
00298 <font class="comment"> float gR = deltaV * ptGrad[stride + 1].x + (1.f - deltaV) * ptGrad[1].x;</font>
00299 <font class="comment"> float gL = deltaV * ptGrad[stride].x + (1.f - deltaV) * ptGrad[0].x;</font>
00300 <font class="comment"></font>
00301 <font class="comment"> float grU = 4.5f * (deltaU * gR + (1.f - deltaU) * gL);</font>
00302 <font class="comment"></font>
00303 <font class="comment"> gR = deltaV * ptGrad[stride + 1].y + (1.f - deltaV) * ptGrad[1].y;</font>
00304 <font class="comment"> gL = deltaV * ptGrad[stride].y + (1.f - deltaV) * ptGrad[0].y;</font>
00305 <font class="comment"></font>
00306 <font class="comment"> float grV = 4.5f * (deltaU * gR + (1.f - deltaU) * gL);</font>
00307 <font class="comment"></font>
00308 <font class="comment"> vb.setValueFloat3Ex (Water_VB_POS, vbIndex, inter.x, inter.y, h);</font>
00309 <font class="comment"> vb.setValueFloat2Ex (Water_VB_DX, vbIndex, grU, grV);</font>
00310 <font class="comment"> */</font>
00311 <font class="comment">/*}</font>
00312 <font class="comment"> else</font>
00313 <font class="comment"> {</font>
00314 <font class="comment"> // no perturbation is visible</font>
00315 <font class="comment"> FillWaterVB(vbPointer, inter.x, inter.y, 0, 0, 0); </font>
00316 <font class="comment"> }*/</font>
00317 }
00318 }
00319
00320 <font class="comment">//*********************************************************</font>
00321 <font class="comment">// compute a rotation matrix from the K and the up vector</font>
00322 <font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a478">ComputeUpMatrix</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &J, <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &dest, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &defaultMat)
00323 {
00324 <font class="comment">// if the J vector is oriented toward K, we must use another vector to compute the matrix</font>
00325 <font class="keyword">const</font> <font class="keywordtype">float</font> JdotK = J.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>;
00326 <font class="keywordflow">if</font> ( (1.0f - fabsf(J.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)) < 10E-6)
00327 {
00328 dest.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_1">setRot</a>(defaultMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_0">getRot</a>());
00329 }
00330 <font class="keywordflow">else</font>
00331 {
00332 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> up = (<a class="code" href="classNLMISC_1_1CVector.html#p3">NLMISC::CVector::K</a> - JdotK * J).normed();
00333 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> right = J ^ up;
00334 dest.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_1">setRot</a>(right, J, up);
00335 }
00336 }
00337
00338 <font class="comment">//*************************************************************</font>
00339 <font class="comment">// draw a 2d polygon after a transformation</font>
00340 <font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a479">DrawPoly2D</a>(CVertexBuffer &vb, IDriver *drv, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &mat, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CPolygon.html">NLMISC::CPolygon</a> &p)
00341 {
00342 uint k;
00343
00344 <font class="keywordflow">for</font> (k = 0; k < p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size(); ++k)
00345 {
00346 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> tPos = mat * <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>[k].x, p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>[k].y, 0);
00347 vb.setValueFloat3Ex (<a class="code" href="namespaceNL3D.html#a308">WATER_VB_POS</a>, k, tPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, tPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, tPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>);
00348 vb.setValueFloat2Ex (<a class="code" href="namespaceNL3D.html#a309">WATER_VB_DX</a>, k, 0, 0);
00349 }
00350 <font class="keyword">static</font> std::vector<uint32> ib;
00351 ib.resize(3 * p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size());
00352
00353 <font class="keywordflow">for</font> (k = 0; k < p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() - 2; ++k)
00354 {
00355 ib[ k * 3 ] = 0;
00356 ib[ k * 3 + 1 ] = k + 1;
00357 ib[ k * 3 + 2 ] = k + 2;
00358 }
00359 drv->renderSimpleTriangles(&ib[0], p.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() - 2);
00360 }
00361
00362 <font class="comment">//***************************************************************************************************************</font>
00363
<a name="l00364"></a><a class="code" href="classNL3D_1_1CWaterRenderObs.html#a0">00364</a> <font class="keywordtype">void</font> CWaterRenderObs::traverse(IObs *caller)
00365 {
00366 <a class="code" href="hierarchical__timer_8h.html#a4">H_AUTO</a>( NL3D_Water_Render );
00367
00368 CRenderTrav *trav = NLMISC::safe_cast<CRenderTrav *>(Trav);
00369 CWaterModel *m = NLMISC::safe_cast<CWaterModel *>(Model);
00370 CWaterShape *shape = NLMISC::safe_cast<CWaterShape *>((IShape *) m->Shape);
00371 IDriver *drv = trav->getDriver();
00372 <font class="keyword">const</font> std::vector<CPlane> &worldPyramid = ((NLMISC::safe_cast<CClipTrav *>(<a class="code" href="classNL3D_1_1IBaseRenderObs.html#m1">ClipObs</a>->Trav))->WorldFrustumPyramid);
00373
00374 <font class="keywordflow">if</font> (shape->_GridSizeTouched)
00375 {
00376 shape->setupVertexBuffer();
00377 }
00378
00379
00380 <font class="comment">// inverted object world matrix</font>
00381 <font class="comment">//NLMISC::CMatrix invObjMat = HrcObs->WorldMatrix.inverted();</font>
00382
00383 <font class="comment">// viewer pos in world space</font>
00384 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &obsPos = <font class="comment">/*invObjMat **/</font> trav->CamPos;
00385
00386 <font class="comment">// camera matrix in world space</font>
00387 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &camMat = trav->CamMatrix;
00388
00389 <font class="comment">// view matrix (inverted cam matrix)</font>
00390 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &viewMat = trav->ViewMatrix;
00391
00392 <font class="comment">// compute the camera matrix such as there is no rotation around the y axis</font>
00393 <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> camMatUp;
00394 <a class="code" href="namespaceNL3D.html#a478">ComputeUpMatrix</a>(camMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>(), camMatUp, camMat);
00395 camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_6">setPos</a>(camMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_4">getPos</a>());
00396
00397 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> matViewUp = camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z293_7">inverted</a>();
00398
00399 <font class="comment">// plane z pos in world</font>
00400 <font class="keyword">const</font> <font class="keywordtype">float</font> zHeight = <a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>->WorldMatrix.getPos().z;
00401
00402 <font class="keyword">const</font> sint numStepX = CWaterShape::getScreenXGridSize();
00403 <font class="keyword">const</font> sint numStepY = CWaterShape::getScreenYGridSize();
00404
00405 <font class="keyword">const</font> <font class="keywordtype">float</font> invNumStepX = 1.f / numStepX;
00406 <font class="keyword">const</font> <font class="keywordtype">float</font> invNumStepY = 1.f / numStepY;
00407
00408 <font class="keyword">const</font> uint rotBorderSize = (shape->_MaxGridSize + (shape->_XGridBorder << 1) - numStepX) >> 1;
00409
00410 <font class="keyword">const</font> sint isAbove = obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> > zHeight ? 1 : 0;
00411
00412
00413
00414 <font class="comment">//==================//</font>
00415 <font class="comment">// polygon clipping //</font>
00416 <font class="comment">//==================//</font>
00417
00418 uint k;
00419 <font class="keyword">static</font> <a class="code" href="classNLMISC_1_1CPolygon.html">NLMISC::CPolygon</a> clippedPoly, endClippedPoly;
00420 clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.resize(shape->_Poly.Vertices.size());
00421 <font class="keywordflow">for</font> (k = 0; k < shape->_Poly.Vertices.size(); ++k)
00422 {
00423 clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>[k].set(shape->_Poly.Vertices[k].x,
00424 shape->_Poly.Vertices[k].y,
00425 0
00426 );
00427 }
00428
00429 endClippedPoly = clippedPoly;
00430
00431
00432 <font class="comment">// Build the view pyramid. We need to rebuild it because we use a wider one to avoid holes on the border of the screen</font>
00433
00434 <font class="keyword">static</font> <a class="code" href="classNLMISC_1_1CPlane.html">NLMISC::CPlane</a> plvect[6];
00435
00436 <font class="keyword">const</font> <font class="keywordtype">float</font> borderFactor = 0.67f; <font class="comment">// we must avoid numerical imprecision as well as the rotation case (must divide by sqrt(2))</font>
00437 <font class="keyword">const</font> <font class="keywordtype">float</font> fRight = trav->Right * (2.f * borderFactor * (float) CWaterShape::_XGridBorder + (float) numStepX) / numStepX;
00438 <font class="keyword">const</font> <font class="keywordtype">float</font> fTop = trav->Top * (2.f * borderFactor * (float) CWaterShape::_YGridBorder + (float) numStepY) / numStepY;
00439
00440 <font class="comment">// build pyramid corners</font>
00441 <font class="keyword">const</font> <font class="keywordtype">float</font> nearDist = trav->Near;
00442 <font class="keyword">const</font> <font class="keywordtype">float</font> farDist = trav->Far;
00443 <font class="keyword">const</font> <font class="keywordtype">float</font> transitionDist = shape->_TransitionRatio * farDist;
00444
00445 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> pfoc(0,0,0);
00446 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> lb(-fRight, nearDist, - fTop );
00447 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> lt(-fRight, nearDist, fTop );
00448 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> rb( fRight, nearDist, -fTop );
00449 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> rt(fRight, nearDist, fTop );
00450
00451 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> lbfarDist(-fRight, transitionDist, -fTop);
00452 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> ltfarDist(-fRight, transitionDist, fTop );
00453 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> rtfarDist(fRight , transitionDist, fTop );
00454
00455
00456 plvect[0].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(lt, lb, rt); <font class="comment">// near plane</font>
00457 plvect[1].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(lbfarDist, ltfarDist, rtfarDist); <font class="comment">// far plane</font>
00458
00459 plvect[2].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(pfoc, lt, lb);
00460 plvect[3].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(pfoc, rt, lt);
00461 plvect[4].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(pfoc, rb, rt);
00462 plvect[5].<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a>(pfoc, lb, rb);
00463
00464
00465 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> pyramidMat = viewMat * <a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>->WorldMatrix;
00466 <font class="keywordflow">for</font> (k = 0; k < worldPyramid.size(); ++k)
00467 {
00468 plvect[k] = plvect[k] * pyramidMat; <font class="comment">// put the plane in object space</font>
00469 }
00470
00471 clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#a3">clip</a>(plvect, 6); <font class="comment">// get the tesselated part of the poly </font>
00472
00473 <font class="comment">// modify the pyramid to get the transition part of the poly (no tesselated)</font>
00474 plvect[0].<a class="code" href="classNLMISC_1_1CPlane.html#m3">d</a> += (transitionDist - nearDist);
00475 <font class="comment">// plvect[1].d -= (farDist - transitionDist);</font>
00476 <font class="comment">// dont clip by far plane (done by driver)</font>
00477 endClippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#a3">clip</a>(plvect, 1);
00478 endClippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#a3">clip</a>(plvect + 2, 4);
00479
00480
00481
00483 <font class="keywordflow">if</font> (clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() == 0 && endClippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() == 0)
00484 {
00485 <font class="keywordflow">return</font>;
00486 }
00487
00488
00489 <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> modelMat;
00490 modelMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_6">setPos</a>(<a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, zHeight));
00491 drv->setupModelMatrix(modelMat);
00492
00493
00494 <font class="comment">//==================//</font>
00495 <font class="comment">// material setup //</font>
00496 <font class="comment">//==================//</font>
00497
00498 CWaterHeightMap &whm = <a class="code" href="namespaceNL3D.html#a480">GetWaterPoolManager</a>().getPoolByID(shape->_WaterPoolID);
00499 <a class="code" href="classNL3D_1_1CWaterRenderObs.html#c0">setupMaterialNVertexShader</a>(drv, shape, obsPos, isAbove > 0, whm.getUnitSize() * (whm.getSize() >> 1), zHeight);
00500
00501 <font class="comment">//setAttenuationFactor(drv, false, obsPos, camMat.getJ(), farDist);</font>
00502 <font class="comment">//disableAttenuation(drv);</font>
00503
00504
00505 <font class="comment">//================================//</font>
00506 <font class="comment">// Vertex buffer setup //</font>
00507 <font class="comment">//================================//</font>
00508
00509 drv->activeVertexBuffer(shape->_VB);
00510
00511 <font class="comment">//================================//</font>
00512 <font class="comment">// tesselated part of the poly //</font>
00513 <font class="comment">//================================//</font>
00514
00515 <font class="keywordflow">if</font> (clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size())
00516 {
00517
00518 <font class="comment">//======================================//</font>
00519 <font class="comment">// Polygon projection on the near plane //</font>
00520 <font class="comment">//======================================//</font>
00521
00522 <font class="keyword">static</font> <a class="code" href="classNLMISC_1_1CPolygon2D.html">NLMISC::CPolygon2D</a> projPoly; <font class="comment">// projected poly</font>
00523 projPoly.<a class="code" href="classNLMISC_1_1CPolygon2D.html#m0">Vertices</a>.resize(clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size());
00524 <font class="keyword">const</font> <font class="keywordtype">float</font> Near = trav->Near;
00525 <font class="keyword">const</font> <font class="keywordtype">float</font> xFactor = (numStepX >> 1) * Near / trav->Right;
00526 <font class="keyword">const</font> <font class="keywordtype">float</font> xOffset = (float) (numStepX >> 1) + 0.5f;
00527 <font class="keyword">const</font> <font class="keywordtype">float</font> yFactor = - (numStepX >> 1) * Near / trav->Top;
00528 <font class="keyword">const</font> <font class="keywordtype">float</font> yOffset = (float) (numStepY >> 1) - 0.5f * isAbove;
00529
00530 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> projMat = matViewUp * <a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>->WorldMatrix;
00531 <font class="keywordflow">for</font> (k = 0; k < clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size(); ++k)
00532 {
00533 <font class="comment">// project points in the view</font>
00534 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> = projMat * clippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>[k];
00535 <font class="keywordtype">float</font> invY = 1.f / t.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>;
00536 projPoly.<a class="code" href="classNLMISC_1_1CPolygon2D.html#m0">Vertices</a>[k].set(xFactor * t.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> * invY + xOffset, yFactor * t.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> * invY + yOffset);
00537 }
00538
00539
00540
00541 <font class="comment">//=============================================//</font>
00542 <font class="comment">// compute borders of poly at a low resolution //</font>
00543 <font class="comment">//=============================================//</font>
00544
00545 <a class="code" href="classNLMISC_1_1CPolygon2D.html#s2">NLMISC::CPolygon2D::TRasterVect</a> rasters;
00546 sint startY;
00547 projPoly.<a class="code" href="classNLMISC_1_1CPolygon2D.html#a7">computeBorders</a>(rasters, startY);
00548
00549 <font class="keywordflow">if</font> (rasters.size())
00550 {
00551 <font class="comment">//===========================//</font>
00552 <font class="comment">// perform Water animation //</font>
00553 <font class="comment">//===========================// </font>
00554
00555 <font class="keyword">const</font> <font class="keywordtype">float</font> WaterRatio = whm.getUnitSize();
00556 <font class="keyword">const</font> <font class="keywordtype">float</font> invWaterRatio = 1.f / WaterRatio;
00557 <font class="keyword">const</font> uint WaterHeightMapSize = whm.getSize();
00558 <font class="keyword">const</font> uint doubleWaterHeightMapSize = (WaterHeightMapSize << 1);
00559
00560
00561 sint64 idate = (NLMISC::safe_cast<CHrcTrav *>(<a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>->Trav))->CurrentDate;
00562
00563
00564
00565 <font class="keywordflow">if</font> (idate != whm.Date)
00566 {
00567 whm.setUserPos((sint) (obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> * invWaterRatio) - (WaterHeightMapSize >> 1),
00568 (sint) (obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> * invWaterRatio) - (WaterHeightMapSize >> 1)
00569 );
00570 <a class="code" href="debug_8h.html#a6">nlassert</a>(m->_Scene); <font class="comment">// this object should have been created from a CWaterShape!</font>
00571 whm.animate((<font class="keywordtype">float</font>) (m->_Scene->getEllapsedTime()));
00572 whm.Date = idate;
00573 }
00574
00575 <font class="comment">//float startDate = (float) (1000.f * NLMISC::CTime::ticksToSecond(NLMISC::CTime::getPerformanceTime()));</font>
00576
00577 <font class="comment">//=====================================//</font>
00578 <font class="comment">// compute heightmap useful area //</font>
00579 <font class="comment">//=====================================//</font>
00580
00588 sint mapPosX, mapPosY;
00589
00592 whm.getUserPos(mapPosX, mapPosY);
00593
00594 <font class="keyword">const</font> uint mapBorder = 3;
00595 <font class="comment">/*const sint qRight = (sint) mapPosX + (WaterHeightMapSize >> 1) - mapBorder;</font>
00596 <font class="comment"> sint qLeft = (sint) mapPosX - (WaterHeightMapSize >> 1);</font>
00597 <font class="comment"> const sint qUp = (sint) mapPosY + (WaterHeightMapSize >> 1) - mapBorder;</font>
00598 <font class="comment"> sint qDown = (sint) mapPosY - (WaterHeightMapSize >> 1); */</font>
00599
00600
00601 <font class="keyword">const</font> sint qRight = (sint) mapPosX + WaterHeightMapSize - mapBorder;
00602 sint qLeft = (sint) mapPosX;
00603 <font class="keyword">const</font> sint qUp = (sint) mapPosY + WaterHeightMapSize - mapBorder;
00604 sint qDown = (sint) mapPosY;
00605
00607 <font class="keyword">const</font> sint qSubLeft = qLeft - (uint) qLeft % WaterHeightMapSize;
00608 <font class="keyword">const</font> sint qSubDown = qDown - (uint) qDown % WaterHeightMapSize;
00609
00610 qLeft += mapBorder;
00611 qDown += mapBorder;
00612
00613
00614
00615
00616 <font class="comment">//==============================================//</font>
00617 <font class="comment">// setup rays to be traced, and their increment //</font>
00618 <font class="comment">//==============================================//</font>
00619
00620
00621 <font class="comment">// compute camera rays in world space</font>
00622 CVector currHV = trav->Left * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_7">getI</a>() + trav->Near * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>() + trav->Top * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_9">getK</a>(); <font class="comment">// current border vector, incremented at each line</font>
00623 CVector currV; <font class="comment">// current ray vector</font>
00624 CVector xStep = (trav->Right - trav->Left) * invNumStepX * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_7">getI</a>(); <font class="comment">// xStep for the ray vector</font>
00625 CVector yStep = (trav->Bottom - trav->Top) * invNumStepY * camMatUp.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_9">getK</a>(); <font class="comment">// yStep for the ray vector</font>
00626
00627
00628
00629 <font class="comment">//===============================================//</font>
00630 <font class="comment">// perform display //</font>
00631 <font class="comment">//===============================================//</font>
00632
00633 <font class="comment">// scale currHV at the top of the poly</font>
00634 currHV += (startY - 0.5f * isAbove) * yStep;
00635
00636 <font class="comment">// current index buffer used. We swap each time a row has been drawn</font>
00637 std::vector<uint32> *currIB = &CWaterShape::_IBUpDown, *otherIB = &CWaterShape::_IBDownUp;
00638
00639
00640 sint vIndex = 0; <font class="comment">// index in vertices </font>
00641
00642 <font class="comment">// current raster position</font>
00643 sint oldStartX, oldEndX, realStartX, realEndX;
00644 <font class="comment">//float invNearWidth = numStepX / (trav->Right - trav->Left);</font>
00645
00646 <font class="comment">//nlinfo("size = %d, maxSize = ", rasters.size(), numStepY);</font>
00647
00648
00649 <font class="keyword">const</font> uint wqHeight = rasters.size();
00650 <font class="keywordflow">if</font> (wqHeight)
00651 {
00652 <font class="comment">// denominator of the intersection equation</font>
00653 <font class="keyword">const</font> <font class="keywordtype">float</font> denom = - obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> + zHeight;
00654 <font class="comment">// test the upper raster</font>
00655 <font class="comment">// if it is above the horizon, we modify it to reach the correct location</font>
00656 <font class="keyword">const</font> <font class="keywordtype">float</font> horizonEpsilon = 10E-4f; <font class="comment">// we must be a little below the horizon</font>
00657
00658 <font class="comment">// distance from the viewer along the traced ray</font>
00659 <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>;
00660
00661
00662
00663
00664 NLMISC::CPolygon2D::TRasterVect::const_iterator it = rasters.begin();
00665 <font class="keywordflow">for</font> (uint <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> = 0; <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> <= wqHeight; ++<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a>)
00666 {
00667 <font class="comment">//nlinfo("start = %d, end = %d", it->first, it->second); </font>
00668 <font class="keyword">const</font> sint startX = it->first;
00669 <font class="keyword">const</font> sint endX = (it->second + 1);
00670
00671 <a class="code" href="debug_8h.html#a6">nlassert</a>(startX >= - (sint) rotBorderSize);
00672 <a class="code" href="debug_8h.html#a6">nlassert</a>(endX <= (sint) (numStepX + rotBorderSize));
00673
00674 <font class="keywordflow">if</font> (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> != 0)
00675 {
00676 realStartX = <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(startX, oldStartX);
00677 realEndX = std::max(endX, oldEndX);
00678 }
00679 <font class="keywordflow">else</font>
00680 {
00681 realStartX = startX;
00682 realEndX = endX;
00683 }
00684
00685
00686 <font class="comment">// current view vector</font>
00687 currV = currHV + (realStartX - 0.5f) * xStep;
00688
00689 <font class="keywordflow">if</font> (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> == 0)
00690 {
00691 <font class="keywordflow">if</font> (isAbove)
00692 {
00693 <font class="comment">// test wether the first row is out of horizon.</font>
00694 <font class="comment">// if this is the case, we make a correction</font>
00695 <font class="keywordflow">if</font> (denom * currV.z <= 0)
00696 {
00697 <font class="comment">// correct for the first line only by adding a y offset</font>
00698 currV += yStep * ((denom > 0 ? horizonEpsilon : - horizonEpsilon) - currV.z) / yStep.z;
00699 }
00700
00701 <font class="comment">// now, for the transition, check wether the first raster does not go over the transition dist</font>
00702
00703 <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> = denom / currV.z;
00704 <font class="keyword">const</font> <font class="keywordtype">float</font> VJ = camMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>() * currV;
00705 <font class="keywordflow">if</font> ( <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * VJ > transitionDist)
00706 {
00707 <font class="keywordtype">float</font> delta = (1.f / yStep.z) * ( denom * VJ / transitionDist - currV.z);
00708 <font class="comment">// correct the first line to reach that position</font>
00709 currV += delta * yStep;
00710 }
00711 }
00712 }
00713
00714
00715 uint8 *vbPointer = (uint8 *) shape->_VB.getVertexCoordPointer() + shape->_VB.getVertexSize() * (vIndex + realStartX + rotBorderSize);
00716
00717
00718 <font class="keywordflow">for</font> (sint k = realStartX; k <= realEndX; ++k)
00719 {
00720 <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> = denom / currV.z;
00721 <font class="comment">// compute intersection with plane </font>
00722 CVector inter = <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * currV;
00723 inter.z += obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>;
00724 <a class="code" href="namespaceNL3D.html#a477">SetupWaterVertex</a>(qLeft, qRight, qUp, qDown, qSubLeft, qSubDown, inter, invWaterRatio, doubleWaterHeightMapSize, whm, vbPointer, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
00725 currV += xStep;
00726 }
00727
00728 <font class="keywordflow">if</font> (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> != 0) <font class="comment">// 2 line of the ib done ?</font>
00729 {
00730 sint count = oldEndX - oldStartX;
00731 <font class="keywordflow">if</font> (count > 0)
00732 {
00733 drv->renderSimpleTriangles(&((*currIB)[(oldStartX + rotBorderSize) * 6]),
00734 2 * count );
00735 }
00736 }
00737
00738 oldStartX = startX;
00739 oldEndX = endX;
00740 currHV += yStep;
00741 vIndex = (numStepX + 2 * rotBorderSize + 1) - vIndex; <font class="comment">// swap first row and second row</font>
00742 std::swap(currIB, otherIB);
00743 <font class="keywordflow">if</font> (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> < (wqHeight - 1))
00744 {
00745 ++it;
00746 }
00747 <font class="keywordflow">else</font>
00748 {
00749 <font class="keywordflow">if</font> (!isAbove)
00750 {
00751 <font class="comment">// last line</font>
00752 <font class="comment">// test wether we are out of horizon</font>
00753 <font class="keywordflow">if</font> (denom * currHV.z <= 0)
00754 {
00755 <font class="comment">// correct for the first line only by adding a y offset</font>
00756 currHV += yStep * ((denom > 0 ? horizonEpsilon : - horizonEpsilon) - currHV.z) / yStep.z;
00757 }
00758
00759 <font class="comment">// now, for the transition, check wether the first raster does not go over the transition dist</font>
00760
00761 <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> = denom / currHV.z;
00762 <font class="keyword">const</font> <font class="keywordtype">float</font> VJ = camMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>() * currHV;
00763 <font class="keywordflow">if</font> ( <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a> * VJ > transitionDist)
00764 {
00765 <font class="keywordtype">float</font> delta = (1.f / yStep.z) * ( denom * VJ / transitionDist - currHV.z);
00766 <font class="comment">// correct the first line to reach that position</font>
00767 currHV += delta * yStep;
00768 }
00769 }
00770
00771 }
00772 }
00773
00774 }
00775 <font class="comment">//nlinfo("display: %f ms", (float) (1000.f * NLMISC::CTime::ticksToSecond(NLMISC::CTime::getPerformanceTime()) - startDate));</font>
00776 }
00777 }
00778
00779 <font class="comment">//=========================================//</font>
00780 <font class="comment">// display end poly //</font>
00781 <font class="comment">//=========================================//</font>
00782
00783 <font class="keywordflow">if</font> (endClippedPoly.<a class="code" href="classNLMISC_1_1CPolygon.html#m0">Vertices</a>.size() != 0)
00784 {
00785 CMatrix mtx; <font class="comment">/*= HrcObs->WorldMatrix;*/</font>
00786 <font class="comment">// mtx.setPos(NLMISC::CVector(-obsPos.x, -obsPos.y, obsPos.z));</font>
00787
00788 mtx.setPos(<a class="code" href="classNL3D_1_1IBaseRenderObs.html#m0">HrcObs</a>->WorldMatrix.getPos() + <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(-obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, -obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, 0));
00789 <font class="comment">// set right obsever position</font>
00790 drv->setConstant(7, 0, 0, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> <font class="comment">/* - zHeight*/</font> , 0.f);
00791 <font class="comment">//setAttenuationFactor(drv, true, obsPos, camMat.getJ(), farDist); </font>
00792 <a class="code" href="namespaceNL3D.html#a479">DrawPoly2D</a>(shape->_VB, drv, mtx, endClippedPoly);
00793 }
00794
00795 <font class="comment">/*if (endTransitionClippedPoly.Vertices.size() != 0)</font>
00796 <font class="comment"> { </font>
00797 <font class="comment"> disableAttenuation(drv); </font>
00798 <font class="comment"> DrawPoly2D(shape->_VB, drv, HrcObs->WorldMatrix, endTransitionClippedPoly);</font>
00799 <font class="comment"> }*/</font>
00800
00801
00802 <font class="keywordflow">if</font> (drv->isVertexProgramSupported())
00803 {
00804 <font class="keywordtype">bool</font> result = drv->activeVertexProgram(NULL);
00805 <font class="keywordflow">if</font> (!result) <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"no vertex program setupped"</font>);
00806 }
00807
00808
00809 this-><a class="code" href="classNL3D_1_1IObs.html#z620_0">traverseSons</a>();
00810 }
00811
00812 <font class="comment">//***********************</font>
00813 <font class="comment">// Water MATERIAL SETUP //</font>
00814 <font class="comment">//***********************</font>
00815
<a name="l00816"></a><a class="code" href="classNL3D_1_1CWaterRenderObs.html#c0">00816</a> <font class="keywordtype">void</font> CWaterRenderObs::setupMaterialNVertexShader(IDriver *drv, CWaterShape *shape, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &obsPos, <font class="keywordtype">bool</font> above, <font class="keywordtype">float</font> maxDist, <font class="keywordtype">float</font> zHeight)
00817 {
00818 CMaterial WaterMat;
00819 WaterMat.setLighting(<font class="keyword">false</font>);
00820 WaterMat.setDoubleSided(<font class="keyword">true</font>);
00821 WaterMat.setColor(<a class="code" href="classNLMISC_1_1CRGBA.html#p7">NLMISC::CRGBA::White</a>);
00822
00823 WaterMat.setBlend(<font class="keyword">true</font>);
00824 WaterMat.setSrcBlend(CMaterial::srcalpha);
00825 WaterMat.setDstBlend(CMaterial::invsrcalpha);
00826 WaterMat.setZWrite(<font class="keyword">true</font>);
00827
00828 <font class="keywordflow">if</font> (drv->isVertexProgramSupported())
00829 {
00830 <font class="keyword">const</font> uint cstOffset = 4; <font class="comment">// 4 places for the matrix</font>
00831 <a class="code" href="classNLMISC_1_1CVectorH.html">NLMISC::CVectorH</a> cst[13];
00832
00833
00834 <font class="comment">//=========================//</font>
00835 <font class="comment">// setup Water material //</font>
00836 <font class="comment">//=========================//</font>
00837
00838 uint alphaMapStage, envMapStage;
00839 WaterMat.setColor(<a class="code" href="classNLMISC_1_1CRGBA.html#p7">NLMISC::CRGBA::White</a>);
00840
00841 <font class="keywordtype">bool</font> useBumpedVersion = <font class="keyword">false</font>;
00842 <font class="keywordtype">bool</font> useEMBM = <font class="keyword">false</font>;
00843 <font class="keywordflow">if</font> (drv->getNbTextureStages() >= 4 && (drv->supportTextureShaders() || drv->supportEMBM()))
00844 {
00845 <font class="keywordflow">if</font> (drv->supportTextureShaders())
00846 {
00847 useBumpedVersion = <font class="keyword">true</font>;
00848 }
00849 <font class="keywordflow">else</font> <font class="comment">// must support EMBM on stages 0 and 1</font>
00850 {
00851 <font class="keywordflow">if</font> (drv->isEMBMSupportedAtStage(0) && drv->isEMBMSupportedAtStage(1))
00852 {
00853 useBumpedVersion = <font class="keyword">true</font>;
00854 useEMBM = <font class="keyword">true</font>;
00855 }
00856 }
00857 }
00858
00859
00860 <font class="keywordflow">if</font> (!useBumpedVersion)
00861 {
00862 WaterMat.texEnvOpRGB(0, CMaterial::Modulate);
00863 alphaMapStage = 1;
00864 envMapStage = 0;
00865 }
00866 <font class="keywordflow">else</font>
00867 {
00868 shape->updateHeightMapNormalizationFactors();
00869
00870 <font class="comment">// setup bump proj matrix </font>
00871 <font class="keyword">const</font> <font class="keywordtype">float</font> idMat[] = {0.25f * shape->_HeightMapNormalizationFactor[0], 0, 0, 0.25f * shape->_HeightMapNormalizationFactor[0]};
00872 <font class="keyword">const</font> <font class="keywordtype">float</font> idMat2[] = {shape->_HeightMapNormalizationFactor[1], 0, 0, shape->_HeightMapNormalizationFactor[1]};
00873
00874 WaterMat.setTexture(0, shape->_BumpMap[0]);
00875 WaterMat.setTexture(1, shape->_BumpMap[1]);
00876 WaterMat.texEnvOpRGB(2, CMaterial::Replace);
00877 alphaMapStage = 3;
00878 envMapStage = 2;
00879
00880 <font class="comment">// Version with texture shaders</font>
00881 <font class="keywordflow">if</font> (!useEMBM)
00882 {
00883 drv->setMatrix2DForTextureOffsetAddrMode(1, idMat);
00884 drv->setMatrix2DForTextureOffsetAddrMode(2, idMat2);
00885
00886
00887 <font class="comment">//if (shape->_BumpMap[0]->supportSharing()) nlinfo(shape->_BumpMap[0]->getShareName().c_str());</font>
00888 <font class="comment">//if (shape->_BumpMap[1]->supportSharing()) nlinfo(shape->_BumpMap[1]->getShareName().c_str());</font>
00889
00890 <font class="comment">/*WaterMat.texEnvOpRGB(1, CMaterial::Replace);</font>
00891 <font class="comment"> WaterMat.texEnvOpRGB(1, CMaterial::Replace);*/</font>
00892 WaterMat.enableTexAddrMode();
00893 WaterMat.setTexAddressingMode(0, CMaterial::FetchTexture);
00894 WaterMat.setTexAddressingMode(1, CMaterial::OffsetTexture);
00895 WaterMat.setTexAddressingMode(2, CMaterial::OffsetTexture);
00896 WaterMat.setTexAddressingMode(3, shape->_ColorMap ? CMaterial::FetchTexture : CMaterial::TextureOff);
00897 }
00898 <font class="keywordflow">else</font> <font class="comment">// version with EMBM</font>
00899 {
00900 drv->setEMBMMatrix(0, idMat2);
00901 drv->setEMBMMatrix(1, idMat2);
00902 WaterMat.texEnvOpRGB(0, CMaterial::EMBM);
00903 <font class="comment">//WaterMat.texEnvOpRGB(0, CMaterial::Replace);</font>
00904 <font class="comment">//WaterMat.texEnvOpRGB(0, CMaterial::EMBM);</font>
00905 WaterMat.texEnvOpRGB(1, CMaterial::EMBM);
00906 WaterMat.setTexture(0, NULL);
00907 }
00908 }
00909
00910
00911 <font class="keywordflow">if</font> (!above && shape->_EnvMap[1])
00912 {
00913 WaterMat.setTexture(envMapStage, shape->_EnvMap[1]);
00914 <font class="comment">//if (shape->_EnvMap[1]->supportSharing()) nlinfo(shape->_EnvMap[1]->getShareName().c_str());</font>
00915 }
00916 <font class="keywordflow">else</font>
00917 {
00918 WaterMat.setTexture(envMapStage, shape->_EnvMap[0]);
00919 }
00920 shape->envMapUpdate();
00921
00922
00923 <font class="keywordflow">if</font> (shape->_ColorMap)
00924 {
00925 WaterMat.setTexture(alphaMapStage, shape->_ColorMap);
00926 <font class="comment">//if (shape->_ColorMap->supportSharing()) nlinfo(shape->_ColorMap->getShareName().c_str());</font>
00927
00928
00929 <font class="comment">// setup 2x3 matrix for lookup in diffuse map</font>
00930 cst[13 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape->_ColorMapMatColumn0.x, shape->_ColorMapMatColumn1.x, 0, shape->_ColorMapMatColumn0.x * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + shape->_ColorMapMatColumn1.x * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + shape->_ColorMapMatPos.x);
00931 cst[14 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape->_ColorMapMatColumn0.y, shape->_ColorMapMatColumn1.y, 0, shape->_ColorMapMatColumn0.y * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + shape->_ColorMapMatColumn1.y * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + shape->_ColorMapMatPos.y);
00932 WaterMat.texEnvOpRGB(alphaMapStage, CMaterial::Modulate);
00933 WaterMat.texEnvOpAlpha(alphaMapStage, CMaterial::Modulate);
00934 }
00935 <font class="keywordflow">else</font>
00936 {
00937 cst[13 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0, 0, 0, 0);
00938 cst[14 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0, 0, 0, 0);
00939 }
00940
00941 cst[16 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0.1f, 0.1f, 0.1f, 0.1f); <font class="comment">// used to avoid imprecision when performing a RSQ to get distance from the origin</font>
00942 <font class="comment">// cst[16 - cstOffset].set(0.0f, 0.0f, 0.0f, 0.0f); // used to avoid imprecision when performing a RSQ to get distance from the origin</font>
00943
00944
00945
00946
00947 cst[5 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0.f, 0.f, 0.f, 0.f); <font class="comment">// claping negative values to 0</font>
00948
00949 <font class="comment">// slope of attenuation of normal / height with distance </font>
00950 <font class="keyword">const</font> <font class="keywordtype">float</font> invMaxDist = shape->_WaveHeightFactor / maxDist;
00951 cst[6 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(invMaxDist, shape->_WaveHeightFactor, 0, 0);
00952
00953 <font class="comment">/*cst[6 - cstOffset].set(invMaxDist, invMaxDist, invMaxDist, invMaxDist); // upcoming light vectorshape->_WaveHeightFactor </font>
00954 <font class="comment"> cst[15 - cstOffset].set(shape->_WaveHeightFactor, shape->_WaveHeightFactor, shape->_WaveHeightFactor, shape->_WaveHeightFactor);</font>
00955 <font class="comment"> */</font>
00956
00957
00958
00959
00961 drv->setConstantMatrix(0, IDriver::ModelViewProjection, IDriver::Identity);
00962
00963 <font class="comment">// retrieve current time</font>
00964 <font class="keywordtype">float</font> date = 0.001f * <a class="code" href="classNLMISC_1_1CTime.html#d1">NLMISC::CTime::getLocalTime</a>();
00965 <font class="comment">// set bumpmaps pos</font>
00966 cst[9 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> * shape->_HeightMapScale[0].x + date * shape->_HeightMapSpeed[0].x, shape->_HeightMapScale[0].y * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + date * shape->_HeightMapSpeed[0].y, 0.f, 0.f); <font class="comment">// bump map 0 offset</font>
00967 cst[10 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape->_HeightMapScale[0].x, shape->_HeightMapScale[0].y, 0, 0); <font class="comment">// bump map 0 scale</font>
00968 cst[11 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape->_HeightMapScale[1].x * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + date * shape->_HeightMapSpeed[1].x, shape->_HeightMapScale[1].y * obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> + date * shape->_HeightMapSpeed[0].y, 0.f, 0.f); <font class="comment">// bump map 1 offset</font>
00969 cst[12 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(shape->_HeightMapScale[1].x, shape->_HeightMapScale[1].y, 0, 0); <font class="comment">// bump map 1 scale</font>
00970
00971
00972
00973
00974
00975
00976 cst[4 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(1.f, 1.f, 1.f, 1.f); <font class="comment">// use with min man, and to get the 1 constant </font>
00977 cst[7 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0, 0, obsPos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> - zHeight, 0.f);
00978 cst[8 - cstOffset].<a class="code" href="classNLMISC_1_1CVectorH.html#a4">set</a>(0.5f, 0.5f, 0.f, 0.f); <font class="comment">// used to scale reflected ray into the envmap</font>
00979
00980
00981
00982
00984 drv->setConstant(4, <font class="keyword">sizeof</font>(cst) / <font class="keyword">sizeof</font>(cst[0]), (<font class="keywordtype">float</font> *) &cst[0]);
00985
00986 shape->initVertexProgram();
00987 <font class="keywordtype">bool</font> result;
00988 <font class="keywordflow">if</font> (useBumpedVersion)
00989 {
00990 <font class="keywordflow">if</font> (!useEMBM)
00991 {
00992 result = shape->getColorMap() ? drv->activeVertexProgram((shape->_VertexProgramBump2Diffuse).get())
00993 : drv->activeVertexProgram((shape->_VertexProgramBump2).get());
00994 }
00995 <font class="keywordflow">else</font>
00996 {
00997 result = shape->getColorMap() ? drv->activeVertexProgram((shape->_VertexProgramBump1Diffuse).get())
00998 : drv->activeVertexProgram((shape->_VertexProgramBump1).get());
00999 }
01000 }
01001 <font class="keywordflow">else</font>
01002 {
01003 result = shape->getColorMap() ? drv->activeVertexProgram((shape->_VertexProgramNoBumpDiffuse).get())
01004 : drv->activeVertexProgram((shape->_VertexProgramNoBump).get());
01005 }
01006 <font class="keywordflow">if</font> (!result) <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"no vertex program setupped"</font>);
01007 }
01008 <font class="keywordflow">else</font>
01009 {
01010 WaterMat.setColor(<a class="code" href="classNLMISC_1_1CRGBA.html">NLMISC::CRGBA</a>(0, 32, 190, 128));
01011 }
01012
01013
01014 <font class="comment">// temp for test</font>
01015 <font class="comment">/* WaterMat = CMaterial();</font>
01016 <font class="comment"> WaterMat.initUnlit();</font>
01017 <font class="comment"> WaterMat.setDoubleSided(true);</font>
01018 <font class="comment"> WaterMat.setColor(CRGBA::Red);</font>
01019 <font class="comment"></font>
01020 <font class="comment"></font>
01021 <font class="comment"> WaterMat.texEnvOpRGB(0, CMaterial::Replace);</font>
01022 <font class="comment"> WaterMat.texEnvOpAlpha(0, CMaterial::Replace);</font>
01023 <font class="comment"> WaterMat.texEnvArg0RGB(0, CMaterial::Diffuse, CMaterial::SrcColor);</font>
01024 <font class="comment"> WaterMat.texEnvArg0Alpha(0, CMaterial::Diffuse, CMaterial::SrcAlpha);</font>
01025 <font class="comment"> */</font>
01026
01027 drv->setupMaterial(WaterMat);
01028 }
01029
01030 <font class="comment">//=======================================================================================</font>
01031 <font class="comment">// wave maker implementation</font>
01032 <font class="comment">//=======================================================================================</font>
01033
01034
<a name="l01035"></a><a class="code" href="classNL3D_1_1CWaveMakerModel.html#a0">01035</a> CWaveMakerModel::CWaveMakerModel() : _Time(0), _Scene(NULL)
01036 {
01037 <font class="comment">// AnimDetail behavior: Must be traversed in AnimDetail, even if no channel mixer registered</font>
01038 CTransform::setIsForceAnimDetail(<font class="keyword">true</font>);
01039 }
01040
01041 <font class="comment">//================================================</font>
01042
<a name="l01043"></a><a class="code" href="classNL3D_1_1CWaveMakerModel.html#d0">01043</a> <font class="keywordtype">void</font> CWaveMakerModel::registerBasic()
01044 {
01045 CMOT::registerModel(<a class="code" href="namespaceNL3D.html#a311">WaveMakerModelClassId</a>, <a class="code" href="namespaceNL3D.html#a277">TransformShapeId</a>, CWaveMakerModel::creator);
01046 CMOT::registerObs(<a class="code" href="namespaceNL3D.html#a3">AnimDetailTravId</a>, <a class="code" href="namespaceNL3D.html#a311">WaveMakerModelClassId</a>, CWaveMakerDetailObs::creator);
01047 }
01048
01049 <font class="comment">//================================================</font>
01050
<a name="l01051"></a><a class="code" href="classNL3D_1_1CWaveMakerModel.html#a1">01051</a> ITrack* CWaveMakerModel::getDefaultTrack (uint valueId)
01052 {
01053 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
01054 <a class="code" href="classNL3D_1_1CWaveMakerModel.html#l1">CWaveMakerShape</a> *ws = NLMISC::safe_cast<CWaveMakerShape *>((IShape *) <a class="code" href="classNL3D_1_1CTransformShape.html#m0">Shape</a>);
01055 <font class="keywordflow">switch</font> (valueId)
01056 {
01057 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z872_0s5">PosValue</a>: <font class="keywordflow">return</font> ws->getDefaultPos(); <font class="keywordflow">break</font>;
01058 <font class="keywordflow">default</font>: <font class="comment">// delegate to parent</font>
01059 <font class="keywordflow">return</font> CTransformShape::getDefaultTrack(valueId);
01060 <font class="keywordflow">break</font>;
01061 }
01062 }
01063
01064 <font class="comment">//================================================</font>
01065
<a name="l01066"></a><a class="code" href="classNL3D_1_1CWaveMakerDetailObs.html#a0">01066</a> <font class="keywordtype">void</font> CWaveMakerDetailObs::traverse(IObs *caller)
01067 {
01068 CTransformAnimDetailObs::traverse(caller);
01070 CWaveMakerModel *wmm = NLMISC::safe_cast<CWaveMakerModel *>(Model);
01071 <a class="code" href="debug_8h.html#a6">nlassert</a>(wmm->_Scene);
01073 CWaveMakerShape *wms = NLMISC::safe_cast<CWaveMakerShape *>((IShape *) wmm->Shape);
01074 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> worldPos = this-><a class="code" href="classNL3D_1_1IBaseAnimDetailObs.html#m1">ClipObs</a>->HrcObs->WorldMatrix.getPos();
01075 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html">NLMISC::CVector2f</a> pos2d(worldPos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, worldPos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
01077 CWaterHeightMap &whm = <a class="code" href="namespaceNL3D.html#a480">GetWaterPoolManager</a>().getPoolByID(wms->_PoolID);
01078 <font class="comment">// get the time delta </font>
01079 <font class="keyword">const</font> <a class="code" href="namespaceNL3D.html#a1">TAnimationTime</a> deltaT = <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(wmm->_Scene->getEllapsedTime(), (TAnimationTime) whm.getPropagationTime());
01080 wmm->_Time += deltaT;
01081 <font class="keywordflow">if</font> (!wms->_ImpulsionMode)
01082 {
01083 whm.perturbate(pos2d, wms->_Intensity * cosf(2.f / wms->_Period * (<font class="keywordtype">float</font>) NLMISC::Pi * wmm->_Time), wms->_Radius);
01084 }
01085 <font class="keywordflow">else</font>
01086 {
01087 <font class="keywordflow">if</font> (wmm->_Time > wms->_Period)
01088 {
01089 wmm->_Time -= wms->_Period;
01090 whm.perturbate(pos2d, wms->_Intensity, wms->_Radius);
01091 }
01092 }
01093 this-><a class="code" href="classNL3D_1_1IObs.html#z620_0">traverseSons</a>();
01094 }
01095
01096
01097 } <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>
|
