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
|
<!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>meshvp_per_pixel_light.cpp</h1><a href="meshvp__per__pixel__light_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000-2002 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="meshvp__per__pixel__light_8h.html">3d/meshvp_per_pixel_light.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="mesh__base__instance_8h.html">3d/mesh_base_instance.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="render__trav_8h.html">3d/render_trav.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="render__trav_8h.html">3d/render_trav.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="vertex__program__parse_8h.html">3d/vertex_program_parse.h</a>"</font>
00035
00036
00037
00038 <font class="preprocessor">#include <string></font>
00039
00040
00041
00042 <font class="keyword">namespace </font>NL3D
00043 {
<a name="l00044"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#r0">00044</a> std::auto_ptr<CVertexProgram> CMeshVPPerPixelLight::_VertexProgram[NumVp];
00045
00046 <font class="comment">// ***************************************************************************</font>
00047 <font class="comment">// Light VP fragment constants start at 24</font>
00048 <font class="keyword">static</font> <font class="keyword">const</font> uint VPLightConstantStart = 24;
00049
00050
00051
00052 <font class="comment">// ***************************************************************************</font>
00053 <font class="comment">// ***************************************************************************</font>
00054
00056 <font class="comment">// omni lights //</font>
00058 <font class="comment"></font>
00064 <font class="comment"></font><font class="comment">// omni light + specular, no normalization</font>
00065 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a146">PPLightingVPCodeBegin</a> =
00066 <font class="stringliteral">"!!VP1.0 \n\</font>
00067 <font class="stringliteral">#compute B = N ^ T \n\</font>
00068 <font class="stringliteral">MOV R6, v[2]; \n\</font>
00069 <font class="stringliteral">MUL R1, R6.yzxw, v[9].zxyw; \n\</font>
00070 <font class="stringliteral">MAD R1, v[9].yzxw, -R6.zxyw, R1; \n\</font>
00071 <font class="stringliteral">#vector in tangent space = [ T B N ] * L \n\</font>
00072 <font class="stringliteral">ADD R2, c[4], -v[0]; # compute L \n\</font>
00073 <font class="stringliteral">DP3 R3, R2, R2; # get L normalized \n\</font>
00074 <font class="stringliteral">RSQ R3, R3.x; \n\</font>
00075 <font class="stringliteral">MUL R2, R3, R2; \n\</font>
00076 <font class="stringliteral">DP3 o[TEX0].x, v[9], R2; # get x of light vector in tangent space \n\</font>
00077 <font class="stringliteral">DP3 o[TEX0].y, R1, R2; # get y \n\</font>
00078 <font class="stringliteral">DP3 o[TEX0].z, R6, R2; # get z \n\</font>
00079 <font class="stringliteral">#specular part \n\</font>
00080 <font class="stringliteral">ADD R3, c[5], - v[0]; # compute V (return to eye) \n\</font>
00081 <font class="stringliteral">#compute inverse norm of V \n\</font>
00082 <font class="stringliteral">DP3 R4, R3, R3; \n\</font>
00083 <font class="stringliteral">RSQ R4, R4.x; \n\</font>
00084 <font class="stringliteral">#we normalize V and add it to L \n\</font>
00085 <font class="stringliteral">MAD R2, R4, R3, R2; #H in R1 \n\</font>
00086 <font class="stringliteral"> \n\</font>
00087 <font class="stringliteral">#normalize H \n\</font>
00088 <font class="stringliteral">DP3 R3, R2, R2; \n\</font>
00089 <font class="stringliteral">RSQ R3, R3.x; \n\</font>
00090 <font class="stringliteral">MUL R2, R3, R2; \n\</font>
00091 <font class="stringliteral">#compute H in tangent space \n\</font>
00092 <font class="stringliteral">DP3 o[TEX2].x, v[9], R2; \n\</font>
00093 <font class="stringliteral">DP3 o[TEX2].y, R1, R2; \n\</font>
00094 <font class="stringliteral">DP3 o[TEX2].z, R6, R2; \n\</font>
00095 <font class="stringliteral"># Position in R5 for additionnal lighting \n\</font>
00096 <font class="stringliteral">MOV R5, v[0]; \n\</font>
00097 <font class="stringliteral"># Normal is in R6 for additionnal lighting \n\</font>
00098 <font class="stringliteral">"</font>;
00099
00101 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a147">PPLightingVPNormalizeCodeBegin</a> =
00102 <font class="stringliteral">"!!VP1.0 \n\</font>
00103 <font class="stringliteral">#normalize the normal \n\</font>
00104 <font class="stringliteral">DP3 R1, v[2], v[2]; \n\</font>
00105 <font class="stringliteral">RSQ R1, R1.x; \n\</font>
00106 <font class="stringliteral">MUL R6, v[2], R1; \n\</font>
00107 <font class="stringliteral"> \n\</font>
00108 <font class="stringliteral">#normalize the second vector \n\</font>
00109 <font class="stringliteral">DP3 R1, R6, v[9]; \n\</font>
00110 <font class="stringliteral">MAD R1, R6, -R1, v[9]; #subtract the normal component \n\</font>
00111 <font class="stringliteral">DP3 R2, R1, R1; \n\</font>
00112 <font class="stringliteral">RSQ R2, R2.x; \n\</font>
00113 <font class="stringliteral">MUL R5, R1, R2; #second basis vector in R5 \n\</font>
00114 <font class="stringliteral">#compute B = N ^ T \n\</font>
00115 <font class="stringliteral">MUL R1, R6.yzxw, R5.zxyw; \n\</font>
00116 <font class="stringliteral">MAD R1, R5.yzxw, -R6.zxyw, R1; #third basis vector in R1 \n\</font>
00117 <font class="stringliteral"> \n\</font>
00118 <font class="stringliteral">#vector in tangent space = [ T B N ] * L \n\</font>
00119 <font class="stringliteral">ADD R2, c[4], -v[0]; # compute L \n\</font>
00120 <font class="stringliteral">DP3 R3, R2, R2; # get L normalized \n\</font>
00121 <font class="stringliteral">RSQ R3, R3.x; \n\</font>
00122 <font class="stringliteral">MUL R2, R3, R2; \n\</font>
00123 <font class="stringliteral">DP3 o[TEX0].x, R5, R2; # get x of light vector in tangent space \n\</font>
00124 <font class="stringliteral">DP3 o[TEX0].y, R1, R2; # get y \n\</font>
00125 <font class="stringliteral">DP3 o[TEX0].z, R6, R2; # get z \n\</font>
00126 <font class="stringliteral"> \n\</font>
00127 <font class="stringliteral">#specular part \n\</font>
00128 <font class="stringliteral">ADD R3, c[5], - v[0]; # compute V (return to eye) \n\</font>
00129 <font class="stringliteral">#compute inverse norm of V \n\</font>
00130 <font class="stringliteral">DP3 R4, R3, R3; \n\</font>
00131 <font class="stringliteral">RSQ R4, R4.x; \n\</font>
00132 <font class="stringliteral">#we normalize V and add it to L \n\</font>
00133 <font class="stringliteral">MAD R2, R4, R3, R2; #H in R1 \n\</font>
00134 <font class="stringliteral"> \n\</font>
00135 <font class="stringliteral">#normalize H \n\</font>
00136 <font class="stringliteral">DP3 R3, R2, R2; \n\</font>
00137 <font class="stringliteral">RSQ R3, R3.x; \n\</font>
00138 <font class="stringliteral">MUL R2, R3, R2; \n\</font>
00139 <font class="stringliteral">#compute H in tangent space \n\</font>
00140 <font class="stringliteral">DP3 o[TEX2].x, R5, R2; \n\</font>
00141 <font class="stringliteral">DP3 o[TEX2].y, R1, R2; \n\</font>
00142 <font class="stringliteral">DP3 o[TEX2].z, R6, R2; \n\</font>
00143 <font class="stringliteral"># Position in R5 for additionnal lighting \n\</font>
00144 <font class="stringliteral">MOV R5, v[0]; \n\</font>
00145 <font class="stringliteral"># Normal is in R6 for additionnal lighting \n\</font>
00146 <font class="stringliteral">"</font>;
00147
00148
00149 <font class="comment">// Omni light, no specular</font>
00150 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a148">PPLightingNoSpecVPCodeBegin</a> =
00151 <font class="stringliteral">"!!VP1.0 \n\</font>
00152 <font class="stringliteral">#compute B = N ^ T \n\</font>
00153 <font class="stringliteral">MOV R6, v[2]; \n\</font>
00154 <font class="stringliteral">MUL R1, R6.yzxw, v[9].zxyw; \n\</font>
00155 <font class="stringliteral">MAD R1, v[9].yzxw, -R6.zxyw, R1; \n\</font>
00156 <font class="stringliteral"> \n\</font>
00157 <font class="stringliteral">#vector in tangent space = [ T B N ] * L \n\</font>
00158 <font class="stringliteral">ADD R2, c[4], -v[0]; # compute L \n\</font>
00159 <font class="stringliteral">DP3 R3, R2, R2; # get L normalized \n\</font>
00160 <font class="stringliteral">RSQ R3, R3.x; \n\</font>
00161 <font class="stringliteral">MUL R2, R3, R2; \n\</font>
00162 <font class="stringliteral">DP3 o[TEX0].x, v[9], R2; # get x of light vector in tangent space \n\</font>
00163 <font class="stringliteral">DP3 o[TEX0].y, R1, R2; # get y \n\</font>
00164 <font class="stringliteral">DP3 o[TEX0].z, R6, R2; # get z \n\</font>
00165 <font class="stringliteral"> \n\</font>
00166 <font class="stringliteral"> \n\</font>
00167 <font class="stringliteral"># Normal is in R6 for additionnal lighting \n\</font>
00168 <font class="stringliteral"># Position in R5 for additionnal lighting \n\</font>
00169 <font class="stringliteral">MOV R5, v[0]; \n\</font>
00170 <font class="stringliteral">"</font>;
00171
00173 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a149">PPLightingVPNormalizeNoSpecCodeBegin</a> =
00174 <font class="stringliteral">"!!VP1.0 \n\</font>
00175 <font class="stringliteral">#normalize the normal \n\</font>
00176 <font class="stringliteral">DP3 R1, v[2], v[2]; \n\</font>
00177 <font class="stringliteral">RSQ R1, R1.x; \n\</font>
00178 <font class="stringliteral">MUL R6, v[2], R1; \n\</font>
00179 <font class="stringliteral"> \n\</font>
00180 <font class="stringliteral">#normalize the second vector \n\</font>
00181 <font class="stringliteral">DP3 R1, R6, v[9]; \n\</font>
00182 <font class="stringliteral">MAD R1, R6, -R1, v[9]; #subtract the normal component \n\</font>
00183 <font class="stringliteral">DP3 R2, R1, R1; \n\</font>
00184 <font class="stringliteral">RSQ R2, R2.x; \n\</font>
00185 <font class="stringliteral">MUL R5, R1, R2; #second basis vector in R5 \n\</font>
00186 <font class="stringliteral">#compute B = N ^ T \n\</font>
00187 <font class="stringliteral">MUL R1, R6.yzxw, R5.zxyw; \n\</font>
00188 <font class="stringliteral">MAD R1, R5.yzxw, -R6.zxyw, R1; #third basis vector in R1 \n\</font>
00189 <font class="stringliteral"> \n\</font>
00190 <font class="stringliteral">#vector in tangent space = [ T B N ] * L \n\</font>
00191 <font class="stringliteral">ADD R2, c[4], -v[0]; # compute L \n\</font>
00192 <font class="stringliteral">DP3 R3, R2, R2; # get L normalized \n\</font>
00193 <font class="stringliteral">RSQ R3, R3.x; \n\</font>
00194 <font class="stringliteral">MUL R2, R3, R2; \n\</font>
00195 <font class="stringliteral">DP3 o[TEX0].x, R5, R2; # get x of light vector in tangent space \n\</font>
00196 <font class="stringliteral">DP3 o[TEX0].y, R1, R2; # get y \n\</font>
00197 <font class="stringliteral">DP3 o[TEX0].z, R6, R2; # get z \n\</font>
00198 <font class="stringliteral"> \n\</font>
00199 <font class="stringliteral"># Normal is in R6 for additionnal lighting \n\</font>
00200 <font class="stringliteral"># Position in R5 for additionnal lighting \n\</font>
00201 <font class="stringliteral">MOV R5, v[0]; \n\</font>
00202 <font class="stringliteral">"</font>;
00203
00204
00206 <font class="comment">// directionnal lights //</font>
00208 <font class="comment"></font>
00211 <font class="comment"></font>
00212 <font class="comment">// directionnal, no normalization</font>
00213 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a150">PPLightingDirectionnalVPCodeBegin</a> =
00214 <font class="stringliteral">"!!VP1.0 \n\</font>
00215 <font class="stringliteral">#compute B = N ^ T \n\</font>
00216 <font class="stringliteral">MOV R6, v[2]; \n\</font>
00217 <font class="stringliteral">MUL R1, R6.yzxw, v[9].zxyw; \n\</font>
00218 <font class="stringliteral">MAD R1, v[9].yzxw, -R6.zxyw, R1; \n\</font>
00219 <font class="stringliteral"> \n\</font>
00220 <font class="stringliteral">#vector in tangent space = [ T B N ] * L \n\</font>
00221 <font class="stringliteral">DP3 o[TEX0].x, v[9], -c[4]; # get x of light vector in tangent space \n\</font>
00222 <font class="stringliteral">DP3 o[TEX0].y, R1, -c[4]; # get y \n\</font>
00223 <font class="stringliteral">DP3 o[TEX0].z, R6, -c[4]; # get z \n\</font>
00224 <font class="stringliteral"> \n\</font>
00225 <font class="stringliteral">#specular part \n\</font>
00226 <font class="stringliteral">ADD R3, c[5], - v[0]; # compute V (return to eye) \n\</font>
00227 <font class="stringliteral">#compute inverse norm of V \n\</font>
00228 <font class="stringliteral">DP3 R4, R3, R3; \n\</font>
00229 <font class="stringliteral">RSQ R4, R4.x; \n\</font>
00230 <font class="stringliteral">#we normalize V and add it to L. It gives H unnormalized \n\</font>
00231 <font class="stringliteral">MAD R2, R4, R3, -c[4]; #H in R1 \n\</font>
00232 <font class="stringliteral"> \n\</font>
00233 <font class="stringliteral">#normalize H \n\</font>
00234 <font class="stringliteral">DP3 R3, R2, R2; \n\</font>
00235 <font class="stringliteral">RSQ R3, R3.x; \n\</font>
00236 <font class="stringliteral">MUL R2, R3, R2; \n\</font>
00237 <font class="stringliteral">#compute H in tangent space \n\</font>
00238 <font class="stringliteral">DP3 o[TEX2].x, v[9], R2; \n\</font>
00239 <font class="stringliteral">DP3 o[TEX2].y, R1, R2; \n\</font>
00240 <font class="stringliteral">DP3 o[TEX2].z, R6, R2; \n\</font>
00241 <font class="stringliteral"> \n\</font>
00242 <font class="stringliteral"># Normal is in R6 for additionnal lighting \n\</font>
00243 <font class="stringliteral"># Position in R5 for additionnal lighting \n\</font>
00244 <font class="stringliteral">MOV R5, v[0]; \n\</font>
00245 <font class="stringliteral">"</font>;
00246
00247 <font class="comment">// directionnal + normalization</font>
00248 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a151">PPLightingDirectionnalVPNormalizeCodeBegin</a> =
00249 <font class="stringliteral">"!!VP1.0 \n\</font>
00250 <font class="stringliteral">#normalize the normal \n\</font>
00251 <font class="stringliteral">DP3 R1, v[2], v[2]; \n\</font>
00252 <font class="stringliteral">RSQ R1, R1.x; \n\</font>
00253 <font class="stringliteral">MUL R6, v[2], R1; \n\</font>
00254 <font class="stringliteral"> \n\</font>
00255 <font class="stringliteral">#normalize the second vector \n\</font>
00256 <font class="stringliteral">DP3 R1, R6, v[9]; \n\</font>
00257 <font class="stringliteral">MAD R1, R6, -R1, v[9]; #subtract the normal component \n\</font>
00258 <font class="stringliteral">DP3 R2, R1, R1; \n\</font>
00259 <font class="stringliteral">RSQ R2, R2.x; \n\</font>
00260 <font class="stringliteral">MUL R5, R1, R2; #second basis vector in R5 \n\</font>
00261 <font class="stringliteral">#compute B = N ^ T \n\</font>
00262 <font class="stringliteral">MUL R1, R6.yzxw, R5.zxyw; \n\</font>
00263 <font class="stringliteral">MAD R1, R5.yzxw, -R6.zxyw, R1; #third basis vector in R1 \n\</font>
00264 <font class="stringliteral"> \n\</font>
00265 <font class="stringliteral">#vector in tangent space = [ T B N ] * L \n\</font>
00266 <font class="stringliteral">DP3 o[TEX0].x, R5, -c[4]; # get x of light vector in tangent space \n\</font>
00267 <font class="stringliteral">DP3 o[TEX0].y, R1, -c[4]; # get y \n\</font>
00268 <font class="stringliteral">DP3 o[TEX0].z, R6, -c[4]; # get z \n\</font>
00269 <font class="stringliteral"> \n\</font>
00270 <font class="stringliteral">#specular part \n\</font>
00271 <font class="stringliteral">ADD R3, c[5], - v[0]; # compute V (return to eye) \n\</font>
00272 <font class="stringliteral">#compute inverse norm of V \n\</font>
00273 <font class="stringliteral">DP3 R4, R3, R3; \n\</font>
00274 <font class="stringliteral">RSQ R4, R4.x; \n\</font>
00275 <font class="stringliteral">#we normalize V and add it to L \n\</font>
00276 <font class="stringliteral">MAD R2, R4, R3, -c[4]; #H in R1 \n\</font>
00277 <font class="stringliteral"> \n\</font>
00278 <font class="stringliteral">#normalize H \n\</font>
00279 <font class="stringliteral">DP3 R3, R2, R2; \n\</font>
00280 <font class="stringliteral">RSQ R3, R3.x; \n\</font>
00281 <font class="stringliteral">MUL R2, R3, R2; \n\</font>
00282 <font class="stringliteral">#compute H in tangent space \n\</font>
00283 <font class="stringliteral">DP3 o[TEX2].x, R5, R2; \n\</font>
00284 <font class="stringliteral">DP3 o[TEX2].y, R1, R2; \n\</font>
00285 <font class="stringliteral">DP3 o[TEX2].z, R6, R2; \n\</font>
00286 <font class="stringliteral"># Normal is in R6 for additionnal lighting \n\</font>
00287 <font class="stringliteral"># Position in R5 for additionnal lighting \n\</font>
00288 <font class="stringliteral">MOV R5, v[0]; \n\</font>
00289 <font class="stringliteral">"</font>;
00290
00291
00292 <font class="comment">// directionnal, no normalization, no specular</font>
00293 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a152">PPLightingDirectionnalNoSpecVPCodeBegin</a> =
00294 <font class="stringliteral">"!!VP1.0 \n\</font>
00295 <font class="stringliteral">#compute B = N ^ T \n\</font>
00296 <font class="stringliteral">MOV R6, v[2]; \n\</font>
00297 <font class="stringliteral">MUL R1, R6.yzxw, v[9].zxyw; \n\</font>
00298 <font class="stringliteral">MAD R1, v[9].yzxw, -R6.zxyw, R1; \n\</font>
00299 <font class="stringliteral"> \n\</font>
00300 <font class="stringliteral">#vector in tangent space = [ T B N ] * L \n\</font>
00301 <font class="stringliteral">DP3 o[TEX0].x, v[9], -c[4]; # get x of light vector in tangent space \n\</font>
00302 <font class="stringliteral">DP3 o[TEX0].y, R1, -c[4]; # get y \n\</font>
00303 <font class="stringliteral">DP3 o[TEX0].z, R6, -c[4]; # get z \n\</font>
00304 <font class="stringliteral"># Normal is in R6 for additionnal lighting \n\</font>
00305 <font class="stringliteral"># Position in R5 for additionnal lighting \n\</font>
00306 <font class="stringliteral">MOV R5, v[0]; \n\</font>
00307 <font class="stringliteral">"</font>;
00308
00309 <font class="comment">// directionnal + normalization, no specular</font>
00310 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a153">PPLightingDirectionnalNoSpecVPNormalizeCodeBegin</a> =
00311 <font class="stringliteral">"!!VP1.0 \n\</font>
00312 <font class="stringliteral">#normalize the normal \n\</font>
00313 <font class="stringliteral">DP3 R1, v[2], v[2]; \n\</font>
00314 <font class="stringliteral">RSQ R1, R1.x; \n\</font>
00315 <font class="stringliteral">MUL R6, v[2], R1; \n\</font>
00316 <font class="stringliteral"> \n\</font>
00317 <font class="stringliteral">#normalize the second vector \n\</font>
00318 <font class="stringliteral">DP3 R1, R6, v[9]; \n\</font>
00319 <font class="stringliteral">MAD R1, R6, -R1, v[9]; #subtract the normal component \n\</font>
00320 <font class="stringliteral">DP3 R2, R1, R1; \n\</font>
00321 <font class="stringliteral">RSQ R2, R2.x; \n\</font>
00322 <font class="stringliteral">MUL R5, R1, R2; #second basis vector in R5 \n\</font>
00323 <font class="stringliteral">#compute B = N ^ T \n\</font>
00324 <font class="stringliteral">MUL R1, R6.yzxw, R5.zxyw; \n\</font>
00325 <font class="stringliteral">MAD R1, R5.yzxw, -R6.zxyw, R1; #third basis vector in R1 \n\</font>
00326 <font class="stringliteral"> \n\</font>
00327 <font class="stringliteral">#vector in tangent space = [ T B N ] * L \n\</font>
00328 <font class="stringliteral">DP3 o[TEX0].x, R5, -c[4]; # get x of light vector in tangent space \n\</font>
00329 <font class="stringliteral">DP3 o[TEX0].y, R1, -c[4]; # get y \n\</font>
00330 <font class="stringliteral">DP3 o[TEX0].z, R6, -c[4]; # get z \n\</font>
00331 <font class="stringliteral"> \n\</font>
00332 <font class="stringliteral"># Normal is in R6 for additionnal lighting \n\</font>
00333 <font class="stringliteral"># Position in R5 for additionnal lighting \n\</font>
00334 <font class="stringliteral">MOV R5, v[0]; \n\</font>
00335 <font class="stringliteral">"</font>;
00336
00337
00338
00339 <font class="comment">// End of per pixel lighting code : compute pos and setup texture</font>
00340 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="namespaceNL3D.html#a154">PPLightingVPCodeEnd</a>=
00341 <font class="stringliteral">" # compute in Projection space \n\</font>
00342 <font class="stringliteral"> DP4 o[HPOS].x, c[0], v[0]; \n\</font>
00343 <font class="stringliteral"> DP4 o[HPOS].y, c[1], v[0]; \n\</font>
00344 <font class="stringliteral"> DP4 o[HPOS].z, c[2], v[0]; \n\</font>
00345 <font class="stringliteral"> DP4 o[HPOS].w, c[3], v[0]; \n\</font>
00346 <font class="stringliteral"> MOV o[TEX1].xy, v[8]; \n\</font>
00347 <font class="stringliteral"> END \n\</font>
00348 <font class="stringliteral">"</font>;
00349
00350 <font class="comment">/***************************************************************/</font>
00351 <font class="comment">/******************* THE FOLLOWING CODE IS COMMENTED OUT *******/</font>
00352 <font class="comment">/***************************************************************</font>
00353 <font class="comment"></font>
00354 <font class="comment">// Test code : map the tangent space vector as the diffuse color</font>
00355 <font class="comment">static const char* PPLightingVPCodeTest =</font>
00356 <font class="comment">"!!VP1.0 \n\</font>
00357 <font class="comment"> # compute in Projection space \n\</font>
00358 <font class="comment"> DP4 o[HPOS].x, c[0], v[0]; \n\</font>
00359 <font class="comment"> DP4 o[HPOS].y, c[1], v[0]; \n\</font>
00360 <font class="comment"> DP4 o[HPOS].z, c[2], v[0]; \n\</font>
00361 <font class="comment"> DP4 o[HPOS].w, c[3], v[0]; \n\</font>
00362 <font class="comment"> MOV o[COL0], v[9]; \n\</font>
00363 <font class="comment"> END \n\</font>
00364 <font class="comment">";</font>
00365 <font class="comment">***************************************************************/</font>
00366
00367
00368
00369
00370 <font class="comment">//=================================================================================</font>
<a name="l00371"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#z609_0">00371</a> <font class="keywordtype">void</font> CMeshVPPerPixelLight::initInstance(CMeshBaseInstance *mbi)
00372 {
00373 <font class="comment">// init the vertexProgram code.</font>
00374 <font class="keyword">static</font> <font class="keywordtype">bool</font> vpCreated= <font class="keyword">false</font>;
00375 <font class="keywordflow">if</font>(!vpCreated)
00376 {
00377 vpCreated= <font class="keyword">true</font>;
00378
00379 <font class="comment">// Gives each vp name</font>
00380 <font class="comment">// Bit 0 : 1 when it is a directionnal light</font>
00381 <font class="comment">// Bit 1 : 1 when specular is needed</font>
00382 <font class="comment">// Bit 2 : 1 when normalization of the tangent space is needed</font>
00383 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font> *vpName[] =
00384 {
00385 <font class="comment">// no spec</font>
00386 <a class="code" href="namespaceNL3D.html#a152">PPLightingDirectionnalNoSpecVPCodeBegin</a>,
00387 <a class="code" href="namespaceNL3D.html#a148">PPLightingNoSpecVPCodeBegin</a>,
00388 <font class="comment">// specular</font>
00389 <a class="code" href="namespaceNL3D.html#a150">PPLightingDirectionnalVPCodeBegin</a>,
00390 <a class="code" href="namespaceNL3D.html#a146">PPLightingVPCodeBegin</a>,
00392 <font class="comment">// no spec</font>
00393 <a class="code" href="namespaceNL3D.html#a153">PPLightingDirectionnalNoSpecVPNormalizeCodeBegin</a>,
00394 <a class="code" href="namespaceNL3D.html#a149">PPLightingVPNormalizeNoSpecCodeBegin</a>,
00395 <font class="comment">// spec</font>
00396 <a class="code" href="namespaceNL3D.html#a151">PPLightingDirectionnalVPNormalizeCodeBegin</a>,
00397 <a class="code" href="namespaceNL3D.html#a147">PPLightingVPNormalizeCodeBegin</a>,
00398 };
00399
00400 uint numvp = <font class="keyword">sizeof</font>(vpName) / <font class="keyword">sizeof</font>(<font class="keyword">const</font> <font class="keywordtype">char</font> *);
00401 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#u1u0">NumVp</a> == numvp); <font class="comment">// make sure that it is in sync with header..todo : compile time assert :)</font>
00402 <font class="keywordflow">for</font> (uint vp = 0; vp < <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#u1u0">NumVp</a>; ++vp)
00403 {
00404 <font class="comment">// \todo yoyo TODO_OPTIM Manage different number of pointLights</font>
00405 <font class="comment">// NB: never call getLightVPFragment() with normalize, because already done by PerPixel fragment before.</font>
00406 std::string vpCode = std::string(vpName[vp])
00407 + std::string(<font class="stringliteral">"# ***************"</font>) <font class="comment">// temp for debug</font>
00408 + CRenderTrav::getLightVPFragment(CRenderTrav::MaxVPLight-1, VPLightConstantStart, (vp & 2) != 0, <font class="keyword">false</font>)
00409 + std::string(<font class="stringliteral">"# ***************"</font>) <font class="comment">// temp for debug</font>
00410 + std::string(<a class="code" href="namespaceNL3D.html#a154">PPLightingVPCodeEnd</a>);
00411 <font class="preprocessor"> #ifdef NL_DEBUG</font>
00412 <font class="preprocessor"></font>
00417 <a class="code" href="classCVPParser.html">CVPParser</a> vpParser;
00418 <a class="code" href="classCVPParser.html#s0">CVPParser::TProgram</a> result;
00419 std::string parseOutput;
00420 <font class="keywordflow">if</font> (!vpParser.<a class="code" href="classCVPParser.html#a0">parse</a>(vpCode.c_str(), result, parseOutput))
00421 {
00422 <a class="code" href="debug_8h.html#a2">nlwarning</a>(parseOutput.c_str());
00423 <a class="code" href="debug_8h.html#a6">nlassert</a>(0);
00424 }
00425 <font class="preprocessor"> #endif</font>
00426 <font class="preprocessor"></font> <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#r0">_VertexProgram</a>[vp]= std::auto_ptr<CVertexProgram>(<font class="keyword">new</font> CVertexProgram(vpCode.c_str()));
00427 }
00428
00429 }
00430 }
00431
00432 <font class="comment">//=================================================================================</font>
<a name="l00433"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#z609_1">00433</a> <font class="keywordtype">bool</font> CMeshVPPerPixelLight::begin(IDriver *drv,
00434 CScene *scene, CMeshBaseInstance *mbi,
00435 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> &invertedModelMat,
00436 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &viewerPos)
00437 {
00438 <font class="comment">// test if supported by driver</font>
00439 <font class="keywordflow">if</font> (!
00440 (drv->isVertexProgramSupported()
00441 && !drv->isVertexProgramEmulated()
00442 && drv->supportPerPixelLighting(<a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#m0">SpecularLighting</a>)
00443 )
00444 )
00445 {
00446 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00447 }
00448 <font class="comment">// </font>
00449 CRenderTrav *renderTrav= scene->getRenderTrav();
00451 renderTrav->beginVPLightSetup(VPLightConstantStart,
00452 <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#m0">SpecularLighting</a>,
00453 invertedModelMat);
00454 <font class="comment">//</font>
00455 sint strongestLightIndex = renderTrav->getStrongestLightIndex();
00456 <font class="keywordflow">if</font> (strongestLightIndex == -1) <font class="keywordflow">return</font> <font class="keyword">false</font>; <font class="comment">// if no strongest light, disable this vertex program </font>
00457 <font class="comment">// setup the strongest light</font>
00459 <font class="comment"> const CLight &strongestLight = renderTrav->getDriverLight(strongestLightIndex);</font>
00460
00461 <font class="keywordflow">switch</font> (strongestLight.getMode())
00462 {
00463 <font class="keywordflow">case</font> CLight::DirectionalLight:
00464 {
00465 <font class="comment">// put light direction in object space</font>
00466 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> lPos = invertedModelMat.<a class="code" href="classNLMISC_1_1CMatrix.html#z294_0">mulVector</a>(strongestLight.getDirection());
00467 drv->setConstant(4, lPos);
00468 <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#o1">_IsPointLight</a> = <font class="keyword">false</font>;
00469 }
00470 <font class="keywordflow">break</font>;
00471 <font class="keywordflow">case</font> CLight::PointLight:
00472 {
00473 <font class="comment">// put light in object space</font>
00474 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> lPos = invertedModelMat * strongestLight.getPosition();
00475 drv->setConstant(4, lPos);
00476 <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#o1">_IsPointLight</a> = <font class="keyword">true</font>;
00477 }
00478 <font class="keywordflow">break</font>;
00479 <font class="keywordflow">default</font>:
00480 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00481 <font class="keywordflow">break</font>;
00482 }
00483
00484
00485 <font class="keywordflow">if</font> (SpecularLighting)
00486 {
00487 <font class="comment">// viewer pos in object space</font>
00488 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> vPos = invertedModelMat * viewerPos;
00489 drv->setConstant(5, vPos);
00490 }
00491
00492 <font class="comment">// c[0..3] take the ModelViewProjection Matrix. After setupModelMatrix();</font>
00493 drv->setConstantMatrix(0, IDriver::ModelViewProjection, IDriver::Identity);
00494 <font class="comment">// </font>
00495 <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#c0">enable</a>(<font class="keyword">true</font>, drv); <font class="comment">// must enable the vertex program before the vb is activated</font>
00496 <font class="comment">//</font>
00497 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00498 }
00499
00500
00501 <font class="comment">//=================================================================================</font>
<a name="l00502"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#z609_2">00502</a> <font class="keywordtype">void</font> CMeshVPPerPixelLight::end(IDriver *drv)
00503 {
00504 <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#c0">enable</a>(<font class="keyword">false</font>, drv);
00505 }
00506
00507
00508 <font class="comment">//=================================================================================</font>
<a name="l00509"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#z609_3">00509</a> <font class="keywordtype">void</font> CMeshVPPerPixelLight::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f) <font class="keywordflow">throw</font>(NLMISC::EStream)
00510 {
00511 (void)f.serialVersion(0);
00512 f.serial(SpecularLighting);
00513 }
00514
00515
00516 <font class="comment">//=================================================================================</font>
<a name="l00517"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#c0">00517</a> <font class="keywordtype">void</font> CMeshVPPerPixelLight::enable(<font class="keywordtype">bool</font> enabled, IDriver *drv)
00518 {
00519 <font class="keywordflow">if</font> (enabled != <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#o0">_Enabled</a>)
00520 {
00521 <a class="code" href="debug_8h.html#a6">nlassert</a>(drv);
00522 <font class="keywordflow">if</font> (enabled)
00523 {
00524 <font class="comment">/* for (uint k = 0; k < NumVp; ++k)</font>
00525 <font class="comment"> {</font>
00526 <font class="comment"> nlinfo("test vp %d", k);</font>
00527 <font class="comment"> drv->activeVertexProgram(_VertexProgram[k].get());</font>
00528 <font class="comment"> } */</font>
00529 uint idVP = (drv->isForceNormalize() ? 4 : 0)
00530 | (<a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#m0">SpecularLighting</a> ? 2 : 0)
00531 | (<a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#o1">_IsPointLight</a> ? 1 : 0);
00532 <font class="comment">//</font>
00533 drv->activeVertexProgram(<a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#r0">_VertexProgram</a>[idVP].get());
00534 }
00535 <font class="keywordflow">else</font>
00536 {
00537 drv->activeVertexProgram(NULL);
00538 }
00539 <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#o0">_Enabled</a> = enabled;
00540 }
00541 }
00542
00543 <font class="comment">//=================================================================================</font>
<a name="l00544"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#c1">00544</a> <font class="keywordtype">bool</font> CMeshVPPerPixelLight::setupForMaterial(<font class="keyword">const</font> CMaterial &mat,
00545 IDriver *drv,
00546 CScene *scene
00547 )
00548 {
00549 <font class="keywordtype">bool</font> enabled = (mat.getShader() == CMaterial::PerPixelLighting || mat.getShader() == CMaterial::PerPixelLightingNoSpec);
00550 <font class="keywordflow">if</font> (enabled)
00551 {
00552 CRenderTrav *renderTrav= scene->getRenderTrav();
00553 renderTrav->changeVPLightSetupMaterial(mat, <font class="keyword">true</font> <font class="comment">/* exclude strongest*/</font>);
00554
00555 <a class="code" href="classNLMISC_1_1CRGBA.html">NLMISC::CRGBA</a> pplDiffuse, pplSpecular;
00556 renderTrav->getStrongestLightColors(pplDiffuse, pplSpecular);
00557 drv->setPerPixelLightingLight(pplDiffuse, pplSpecular, mat.getShininess());
00558 }
00559 <font class="keywordtype">bool</font> change = (enabled != <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#o0">_Enabled</a>);
00560 <a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#c0">enable</a>(enabled, drv); <font class="comment">// enable disable the vertex program (for material that don't have the right shader)</font>
00561 <font class="keywordflow">return</font> change;
00562 }
00563 <font class="comment">//=================================================================================</font>
<a name="l00564"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#z609_4">00564</a> <font class="keywordtype">void</font> CMeshVPPerPixelLight::setupForMaterial(<font class="keyword">const</font> CMaterial &mat,
00565 IDriver *drv,
00566 CScene *scene,
00567 CVertexBuffer *vb)
00568 {
00569
00570 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#z609_4">setupForMaterial</a>(mat, drv, scene)) <font class="comment">// a switch from v.p enabled / disabled force to reactivate the vertex buffer.</font>
00571 {
00572 drv->activeVertexBuffer(*vb);
00573 }
00574 }
00575
00576 <font class="comment">//=================================================================================</font>
<a name="l00577"></a><a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#z609_5">00577</a> <font class="keywordtype">void</font> CMeshVPPerPixelLight::setupForMaterial(<font class="keyword">const</font> CMaterial &mat,
00578 IDriver *drv,
00579 CScene *scene,
00580 IVertexBufferHard *vb)
00581 {
00582
00583 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CMeshVPPerPixelLight.html#z609_4">setupForMaterial</a>(mat, drv, scene)) <font class="comment">// a switch from v.p enabled / disabled force to reactivate the vertex buffer.</font>
00584 {
00585 drv->activeVertexBufferHard(vb);
00586 }
00587 }
00588
00589
00590 } <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>
|
