← Back to branch summary

~baltix/+junk/irrlicht-test

« back to all changes in this revision

Viewing changes to source/Irrlicht/CTRGouraud2.cpp

  • Committer: Mantas Kriaučiūnas
  • Date: 2011-07-18 13:06:25 UTC
  • Revision ID: mantas@akl.lt-20110718130625-c5pvifp61e7kj1ol
Included whole irrlicht SVN libraries to work around launchpad recipe issue with quilt, see https://answers.launchpad.net/launchpad/+question/165193

Show diffs side-by-side

added added

removed removed

Lines of Context:
source/Irrlicht/CTRGouraud2.cpp
 
1
// Copyright (C) 2002-2011 Nikolaus Gebhardt / Thomas Alten
 
2
// This file is part of the "Irrlicht Engine".
 
3
// For conditions of distribution and use, see copyright notice in irrlicht.h
 
4
 
 
5
#include "IrrCompileConfig.h"
 
6
#include "IBurningShader.h"
 
7
 
 
8
#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
 
9
 
 
10
// compile flag for this file
 
11
#undef USE_ZBUFFER
 
12
#undef IPOL_Z
 
13
#undef CMP_Z
 
14
#undef WRITE_Z
 
15
 
 
16
#undef IPOL_W
 
17
#undef CMP_W
 
18
#undef WRITE_W
 
19
 
 
20
#undef SUBTEXEL
 
21
#undef INVERSE_W
 
22
 
 
23
#undef IPOL_C0
 
24
#undef IPOL_T0
 
25
#undef IPOL_T1
 
26
 
 
27
// define render case
 
28
#define SUBTEXEL
 
29
#define INVERSE_W
 
30
 
 
31
#define USE_ZBUFFER
 
32
#define IPOL_W
 
33
#define CMP_W
 
34
#define WRITE_W
 
35
 
 
36
#define IPOL_C0
 
37
//#define IPOL_T0
 
38
//#define IPOL_T1
 
39
 
 
40
// apply global override
 
41
#ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT
 
42
        #undef INVERSE_W
 
43
#endif
 
44
 
 
45
#ifndef SOFTWARE_DRIVER_2_SUBTEXEL
 
46
        #undef SUBTEXEL
 
47
#endif
 
48
 
 
49
#ifndef SOFTWARE_DRIVER_2_USE_VERTEX_COLOR
 
50
        #undef IPOL_C0
 
51
#endif
 
52
 
 
53
#if !defined ( SOFTWARE_DRIVER_2_USE_WBUFFER ) && defined ( USE_ZBUFFER )
 
54
        #ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT
 
55
                #undef IPOL_W
 
56
        #endif
 
57
        #define IPOL_Z
 
58
 
 
59
        #ifdef CMP_W
 
60
                #undef CMP_W
 
61
                #define CMP_Z
 
62
        #endif
 
63
 
 
64
        #ifdef WRITE_W
 
65
                #undef WRITE_W
 
66
                #define WRITE_Z
 
67
        #endif
 
68
 
 
69
#endif
 
70
 
 
71
 
 
72
namespace irr
 
73
{
 
74
 
 
75
namespace video
 
76
{
 
77
 
 
78
class CTRGouraud2 : public IBurningShader
 
79
{
 
80
public:
 
81
 
 
82
        //! constructor
 
83
        CTRGouraud2(CBurningVideoDriver* driver);
 
84
 
 
85
        //! draws an indexed triangle list
 
86
        virtual void drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c );
 
87
 
 
88
 
 
89
private:
 
90
        void scanline_bilinear ();
 
91
        sScanConvertData scan;
 
92
        sScanLineData line;
 
93
 
 
94
};
 
95
 
 
96
//! constructor
 
97
CTRGouraud2::CTRGouraud2(CBurningVideoDriver* driver)
 
98
: IBurningShader(driver)
 
99
{
 
100
        #ifdef _DEBUG
 
101
        setDebugName("CTRGouraud2");
 
102
        #endif
 
103
}
 
104
 
 
105
 
 
106
 
 
107
/*!
 
108
*/
 
109
void CTRGouraud2::scanline_bilinear ()
 
110
{
 
111
        tVideoSample *dst;
 
112
 
 
113
#ifdef USE_ZBUFFER
 
114
        fp24 *z;
 
115
#endif
 
116
 
 
117
        s32 xStart;
 
118
        s32 xEnd;
 
119
        s32 dx;
 
120
 
 
121
#ifdef SUBTEXEL
 
122
        f32 subPixel;
 
123
#endif
 
124
 
 
125
#ifdef IPOL_Z
 
126
        f32 slopeZ;
 
127
#endif
 
128
#ifdef IPOL_W
 
129
        fp24 slopeW;
 
130
#endif
 
131
#ifdef IPOL_C0
 
132
        sVec4 slopeC;
 
133
#endif
 
134
#ifdef IPOL_T0
 
135
        sVec2 slopeT[BURNING_MATERIAL_MAX_TEXTURES];
 
136
#endif
 
137
 
 
138
        // apply top-left fill-convention, left
 
139
        xStart = core::ceil32( line.x[0] );
 
140
        xEnd = core::ceil32( line.x[1] ) - 1;
 
141
 
 
142
        dx = xEnd - xStart;
 
143
 
 
144
        if ( dx < 0 )
 
145
                return;
 
146
 
 
147
        // slopes
 
148
        const f32 invDeltaX = core::reciprocal_approxim ( line.x[1] - line.x[0] );
 
149
 
 
150
#ifdef IPOL_Z
 
151
        slopeZ = (line.z[1] - line.z[0]) * invDeltaX;
 
152
#endif
 
153
#ifdef IPOL_W
 
154
        slopeW = (line.w[1] - line.w[0]) * invDeltaX;
 
155
#endif
 
156
#ifdef IPOL_C0
 
157
        slopeC = (line.c[0][1] - line.c[0][0]) * invDeltaX;
 
158
#endif
 
159
#ifdef IPOL_T0
 
160
        slopeT[0] = (line.t[0][1] - line.t[0][0]) * invDeltaX;
 
161
#endif
 
162
#ifdef IPOL_T1
 
163
        slopeT[1] = (line.t[1][1] - line.t[1][0]) * invDeltaX;
 
164
#endif
 
165
 
 
166
#ifdef SUBTEXEL
 
167
        subPixel = ( (f32) xStart ) - line.x[0];
 
168
#ifdef IPOL_Z
 
169
        line.z[0] += slopeZ * subPixel;
 
170
#endif
 
171
#ifdef IPOL_W
 
172
        line.w[0] += slopeW * subPixel;
 
173
#endif
 
174
#ifdef IPOL_C0
 
175
        line.c[0][0] += slopeC * subPixel;
 
176
#endif
 
177
#ifdef IPOL_T0
 
178
        line.t[0][0] += slopeT[0] * subPixel;
 
179
#endif
 
180
#ifdef IPOL_T1
 
181
        line.t[1][0] += slopeT[1] * subPixel;
 
182
#endif
 
183
#endif
 
184
 
 
185
        dst = (tVideoSample*)RenderTarget->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart;
 
186
 
 
187
#ifdef USE_ZBUFFER
 
188
        z = (fp24*) DepthBuffer->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart;
 
189
#endif
 
190
 
 
191
 
 
192
 
 
193
#ifdef IPOL_C0
 
194
        tFixPoint r0, g0, b0;
 
195
 
 
196
#ifdef INVERSE_W
 
197
        f32 inversew;
 
198
#endif
 
199
 
 
200
#endif
 
201
 
 
202
        for ( s32 i = 0; i <= dx; ++i )
 
203
        {
 
204
#ifdef CMP_Z
 
205
                if ( line.z[0] < z[i] )
 
206
#endif
 
207
#ifdef CMP_W
 
208
                if ( line.w[0] >= z[i] )
 
209
#endif
 
210
 
 
211
                {
 
212
#ifdef IPOL_C0
 
213
#ifdef INVERSE_W
 
214
                        inversew = core::reciprocal ( line.w[0] );
 
215
 
 
216
                        getSample_color ( r0, g0, b0, line.c[0][0] * inversew );
 
217
#else
 
218
                        getSample_color ( r0, g0, b0, line.c[0][0] );
 
219
#endif
 
220
 
 
221
                        dst[i] = fix_to_color ( r0, g0, b0 );
 
222
#else
 
223
                        dst[i] = COLOR_BRIGHT_WHITE;
 
224
#endif
 
225
 
 
226
#ifdef WRITE_Z
 
227
                        z[i] = line.z[0];
 
228
#endif
 
229
#ifdef WRITE_W
 
230
                        z[i] = line.w[0];
 
231
#endif
 
232
 
 
233
                }
 
234
 
 
235
#ifdef IPOL_Z
 
236
                line.z[0] += slopeZ;
 
237
#endif
 
238
#ifdef IPOL_W
 
239
                line.w[0] += slopeW;
 
240
#endif
 
241
#ifdef IPOL_C0
 
242
                line.c[0][0] += slopeC;
 
243
#endif
 
244
#ifdef IPOL_T0
 
245
                line.t[0][0] += slopeT[0];
 
246
#endif
 
247
#ifdef IPOL_T1
 
248
                line.t[1][0] += slopeT[1];
 
249
#endif
 
250
        }
 
251
 
 
252
}
 
253
 
 
254
void CTRGouraud2::drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c )
 
255
{
 
256
        // sort on height, y
 
257
        if ( a->Pos.y > b->Pos.y ) swapVertexPointer(&a, &b);
 
258
        if ( a->Pos.y > c->Pos.y ) swapVertexPointer(&a, &c);
 
259
        if ( b->Pos.y > c->Pos.y ) swapVertexPointer(&b, &c);
 
260
 
 
261
        const f32 ca = c->Pos.y - a->Pos.y;
 
262
        const f32 ba = b->Pos.y - a->Pos.y;
 
263
        const f32 cb = c->Pos.y - b->Pos.y;
 
264
        // calculate delta y of the edges
 
265
        scan.invDeltaY[0] = core::reciprocal( ca );
 
266
        scan.invDeltaY[1] = core::reciprocal( ba );
 
267
        scan.invDeltaY[2] = core::reciprocal( cb );
 
268
 
 
269
        if ( F32_LOWER_EQUAL_0 ( scan.invDeltaY[0] ) )
 
270
                return;
 
271
 
 
272
        // find if the major edge is left or right aligned
 
273
        f32 temp[4];
 
274
 
 
275
        temp[0] = a->Pos.x - c->Pos.x;
 
276
        temp[1] = -ca;
 
277
        temp[2] = b->Pos.x - a->Pos.x;
 
278
        temp[3] = ba;
 
279
 
 
280
        scan.left = ( temp[0] * temp[3] - temp[1] * temp[2] ) > 0.f ? 0 : 1;
 
281
        scan.right = 1 - scan.left;
 
282
 
 
283
        // calculate slopes for the major edge
 
284
        scan.slopeX[0] = (c->Pos.x - a->Pos.x) * scan.invDeltaY[0];
 
285
        scan.x[0] = a->Pos.x;
 
286
 
 
287
#ifdef IPOL_Z
 
288
        scan.slopeZ[0] = (c->Pos.z - a->Pos.z) * scan.invDeltaY[0];
 
289
        scan.z[0] = a->Pos.z;
 
290
#endif
 
291
 
 
292
#ifdef IPOL_W
 
293
        scan.slopeW[0] = (c->Pos.w - a->Pos.w) * scan.invDeltaY[0];
 
294
        scan.w[0] = a->Pos.w;
 
295
#endif
 
296
 
 
297
#ifdef IPOL_C0
 
298
        scan.slopeC[0][0] = (c->Color[0] - a->Color[0]) * scan.invDeltaY[0];
 
299
        scan.c[0][0] = a->Color[0];
 
300
#endif
 
301
 
 
302
#ifdef IPOL_T0
 
303
        scan.slopeT[0][0] = (c->Tex[0] - a->Tex[0]) * scan.invDeltaY[0];
 
304
        scan.t[0][0] = a->Tex[0];
 
305
#endif
 
306
 
 
307
#ifdef IPOL_T1
 
308
        scan.slopeT[1][0] = (c->Tex[1] - a->Tex[1]) * scan.invDeltaY[0];
 
309
        scan.t[1][0] = a->Tex[1];
 
310
#endif
 
311
 
 
312
        // top left fill convention y run
 
313
        s32 yStart;
 
314
        s32 yEnd;
 
315
 
 
316
#ifdef SUBTEXEL
 
317
        f32 subPixel;
 
318
#endif
 
319
 
 
320
 
 
321
        // rasterize upper sub-triangle
 
322
        if ( (f32) 0.0 != scan.invDeltaY[1]  )
 
323
        {
 
324
                // calculate slopes for top edge
 
325
                scan.slopeX[1] = (b->Pos.x - a->Pos.x) * scan.invDeltaY[1];
 
326
                scan.x[1] = a->Pos.x;
 
327
 
 
328
#ifdef IPOL_Z
 
329
                scan.slopeZ[1] = (b->Pos.z - a->Pos.z) * scan.invDeltaY[1];
 
330
                scan.z[1] = a->Pos.z;
 
331
#endif
 
332
 
 
333
#ifdef IPOL_W
 
334
                scan.slopeW[1] = (b->Pos.w - a->Pos.w) * scan.invDeltaY[1];
 
335
                scan.w[1] = a->Pos.w;
 
336
#endif
 
337
 
 
338
#ifdef IPOL_C0
 
339
                scan.slopeC[0][1] = (b->Color[0] - a->Color[0]) * scan.invDeltaY[1];
 
340
                scan.c[0][1] = a->Color[0];
 
341
#endif
 
342
 
 
343
#ifdef IPOL_T0
 
344
                scan.slopeT[0][1] = (b->Tex[0] - a->Tex[0]) * scan.invDeltaY[1];
 
345
                scan.t[0][1] = a->Tex[0];
 
346
#endif
 
347
 
 
348
#ifdef IPOL_T1
 
349
                scan.slopeT[1][1] = (b->Tex[1] - a->Tex[1]) * scan.invDeltaY[1];
 
350
                scan.t[1][1] = a->Tex[1];
 
351
#endif
 
352
 
 
353
                // apply top-left fill convention, top part
 
354
                yStart = core::ceil32( a->Pos.y );
 
355
                yEnd = core::ceil32( b->Pos.y ) - 1;
 
356
 
 
357
#ifdef SUBTEXEL
 
358
                subPixel = ( (f32) yStart ) - a->Pos.y;
 
359
 
 
360
                // correct to pixel center
 
361
                scan.x[0] += scan.slopeX[0] * subPixel;
 
362
                scan.x[1] += scan.slopeX[1] * subPixel;         
 
363
 
 
364
#ifdef IPOL_Z
 
365
                scan.z[0] += scan.slopeZ[0] * subPixel;
 
366
                scan.z[1] += scan.slopeZ[1] * subPixel;         
 
367
#endif
 
368
 
 
369
#ifdef IPOL_W
 
370
                scan.w[0] += scan.slopeW[0] * subPixel;
 
371
                scan.w[1] += scan.slopeW[1] * subPixel;         
 
372
#endif
 
373
 
 
374
#ifdef IPOL_C0
 
375
                scan.c[0][0] += scan.slopeC[0][0] * subPixel;
 
376
                scan.c[0][1] += scan.slopeC[0][1] * subPixel;           
 
377
#endif
 
378
 
 
379
#ifdef IPOL_T0
 
380
                scan.t[0][0] += scan.slopeT[0][0] * subPixel;
 
381
                scan.t[0][1] += scan.slopeT[0][1] * subPixel;           
 
382
#endif
 
383
 
 
384
#ifdef IPOL_T1
 
385
                scan.t[1][0] += scan.slopeT[1][0] * subPixel;
 
386
                scan.t[1][1] += scan.slopeT[1][1] * subPixel;           
 
387
#endif
 
388
 
 
389
#endif
 
390
 
 
391
                // rasterize the edge scanlines
 
392
                for( line.y = yStart; line.y <= yEnd; ++line.y)
 
393
                {
 
394
                        line.x[scan.left] = scan.x[0];
 
395
                        line.x[scan.right] = scan.x[1];
 
396
 
 
397
#ifdef IPOL_Z
 
398
                        line.z[scan.left] = scan.z[0];
 
399
                        line.z[scan.right] = scan.z[1];
 
400
#endif
 
401
 
 
402
#ifdef IPOL_W
 
403
                        line.w[scan.left] = scan.w[0];
 
404
                        line.w[scan.right] = scan.w[1];
 
405
#endif
 
406
 
 
407
#ifdef IPOL_C0
 
408
                        line.c[0][scan.left] = scan.c[0][0];
 
409
                        line.c[0][scan.right] = scan.c[0][1];
 
410
#endif
 
411
 
 
412
#ifdef IPOL_T0
 
413
                        line.t[0][scan.left] = scan.t[0][0];
 
414
                        line.t[0][scan.right] = scan.t[0][1];
 
415
#endif
 
416
 
 
417
#ifdef IPOL_T1
 
418
                        line.t[1][scan.left] = scan.t[1][0];
 
419
                        line.t[1][scan.right] = scan.t[1][1];
 
420
#endif
 
421
 
 
422
                        // render a scanline
 
423
                        scanline_bilinear ();
 
424
 
 
425
                        scan.x[0] += scan.slopeX[0];
 
426
                        scan.x[1] += scan.slopeX[1];
 
427
 
 
428
#ifdef IPOL_Z
 
429
                        scan.z[0] += scan.slopeZ[0];
 
430
                        scan.z[1] += scan.slopeZ[1];
 
431
#endif
 
432
 
 
433
#ifdef IPOL_W
 
434
                        scan.w[0] += scan.slopeW[0];
 
435
                        scan.w[1] += scan.slopeW[1];
 
436
#endif
 
437
 
 
438
#ifdef IPOL_C0
 
439
                        scan.c[0][0] += scan.slopeC[0][0];
 
440
                        scan.c[0][1] += scan.slopeC[0][1];
 
441
#endif
 
442
 
 
443
#ifdef IPOL_T0
 
444
                        scan.t[0][0] += scan.slopeT[0][0];
 
445
                        scan.t[0][1] += scan.slopeT[0][1];
 
446
#endif
 
447
 
 
448
#ifdef IPOL_T1
 
449
                        scan.t[1][0] += scan.slopeT[1][0];
 
450
                        scan.t[1][1] += scan.slopeT[1][1];
 
451
#endif
 
452
 
 
453
                }
 
454
        }
 
455
 
 
456
        // rasterize lower sub-triangle
 
457
        if ( (f32) 0.0 != scan.invDeltaY[2] )
 
458
        {
 
459
                // advance to middle point
 
460
                if( (f32) 0.0 != scan.invDeltaY[1] )
 
461
                {
 
462
                        temp[0] = b->Pos.y - a->Pos.y;  // dy
 
463
 
 
464
                        scan.x[0] = a->Pos.x + scan.slopeX[0] * temp[0];
 
465
#ifdef IPOL_Z
 
466
                        scan.z[0] = a->Pos.z + scan.slopeZ[0] * temp[0];
 
467
#endif
 
468
#ifdef IPOL_W
 
469
                        scan.w[0] = a->Pos.w + scan.slopeW[0] * temp[0];
 
470
#endif
 
471
#ifdef IPOL_C0
 
472
                        scan.c[0][0] = a->Color[0] + scan.slopeC[0][0] * temp[0];
 
473
#endif
 
474
#ifdef IPOL_T0
 
475
                        scan.t[0][0] = a->Tex[0] + scan.slopeT[0][0] * temp[0];
 
476
#endif
 
477
#ifdef IPOL_T1
 
478
                        scan.t[1][0] = a->Tex[1] + scan.slopeT[1][0] * temp[0];
 
479
#endif
 
480
 
 
481
                }
 
482
 
 
483
                // calculate slopes for bottom edge
 
484
                scan.slopeX[1] = (c->Pos.x - b->Pos.x) * scan.invDeltaY[2];
 
485
                scan.x[1] = b->Pos.x;
 
486
 
 
487
#ifdef IPOL_Z
 
488
                scan.slopeZ[1] = (c->Pos.z - b->Pos.z) * scan.invDeltaY[2];
 
489
                scan.z[1] = b->Pos.z;
 
490
#endif
 
491
 
 
492
#ifdef IPOL_W
 
493
                scan.slopeW[1] = (c->Pos.w - b->Pos.w) * scan.invDeltaY[2];
 
494
                scan.w[1] = b->Pos.w;
 
495
#endif
 
496
 
 
497
#ifdef IPOL_C0
 
498
                scan.slopeC[0][1] = (c->Color[0] - b->Color[0]) * scan.invDeltaY[2];
 
499
                scan.c[0][1] = b->Color[0];
 
500
#endif
 
501
 
 
502
#ifdef IPOL_T0
 
503
                scan.slopeT[0][1] = (c->Tex[0] - b->Tex[0]) * scan.invDeltaY[2];
 
504
                scan.t[0][1] = b->Tex[0];
 
505
#endif
 
506
 
 
507
#ifdef IPOL_T1
 
508
                scan.slopeT[1][1] = (c->Tex[1] - b->Tex[1]) * scan.invDeltaY[2];
 
509
                scan.t[1][1] = b->Tex[1];
 
510
#endif
 
511
 
 
512
                // apply top-left fill convention, top part
 
513
                yStart = core::ceil32( b->Pos.y );
 
514
                yEnd = core::ceil32( c->Pos.y ) - 1;
 
515
 
 
516
#ifdef SUBTEXEL
 
517
 
 
518
                subPixel = ( (f32) yStart ) - b->Pos.y;
 
519
 
 
520
                // correct to pixel center
 
521
                scan.x[0] += scan.slopeX[0] * subPixel;
 
522
                scan.x[1] += scan.slopeX[1] * subPixel;         
 
523
 
 
524
#ifdef IPOL_Z
 
525
                scan.z[0] += scan.slopeZ[0] * subPixel;
 
526
                scan.z[1] += scan.slopeZ[1] * subPixel;         
 
527
#endif
 
528
 
 
529
#ifdef IPOL_W
 
530
                scan.w[0] += scan.slopeW[0] * subPixel;
 
531
                scan.w[1] += scan.slopeW[1] * subPixel;         
 
532
#endif
 
533
 
 
534
#ifdef IPOL_C0
 
535
                scan.c[0][0] += scan.slopeC[0][0] * subPixel;
 
536
                scan.c[0][1] += scan.slopeC[0][1] * subPixel;           
 
537
#endif
 
538
 
 
539
#ifdef IPOL_T0
 
540
                scan.t[0][0] += scan.slopeT[0][0] * subPixel;
 
541
                scan.t[0][1] += scan.slopeT[0][1] * subPixel;           
 
542
#endif
 
543
 
 
544
#ifdef IPOL_T1
 
545
                scan.t[1][0] += scan.slopeT[1][0] * subPixel;
 
546
                scan.t[1][1] += scan.slopeT[1][1] * subPixel;           
 
547
#endif
 
548
 
 
549
#endif
 
550
 
 
551
                // rasterize the edge scanlines
 
552
                for( line.y = yStart; line.y <= yEnd; ++line.y)
 
553
                {
 
554
                        line.x[scan.left] = scan.x[0];
 
555
                        line.x[scan.right] = scan.x[1];
 
556
 
 
557
#ifdef IPOL_Z
 
558
                        line.z[scan.left] = scan.z[0];
 
559
                        line.z[scan.right] = scan.z[1];
 
560
#endif
 
561
 
 
562
#ifdef IPOL_W
 
563
                        line.w[scan.left] = scan.w[0];
 
564
                        line.w[scan.right] = scan.w[1];
 
565
#endif
 
566
 
 
567
#ifdef IPOL_C0
 
568
                        line.c[0][scan.left] = scan.c[0][0];
 
569
                        line.c[0][scan.right] = scan.c[0][1];
 
570
#endif
 
571
 
 
572
#ifdef IPOL_T0
 
573
                        line.t[0][scan.left] = scan.t[0][0];
 
574
                        line.t[0][scan.right] = scan.t[0][1];
 
575
#endif
 
576
 
 
577
#ifdef IPOL_T1
 
578
                        line.t[1][scan.left] = scan.t[1][0];
 
579
                        line.t[1][scan.right] = scan.t[1][1];
 
580
#endif
 
581
 
 
582
                        // render a scanline
 
583
                        scanline_bilinear ();
 
584
 
 
585
                        scan.x[0] += scan.slopeX[0];
 
586
                        scan.x[1] += scan.slopeX[1];
 
587
 
 
588
#ifdef IPOL_Z
 
589
                        scan.z[0] += scan.slopeZ[0];
 
590
                        scan.z[1] += scan.slopeZ[1];
 
591
#endif
 
592
 
 
593
#ifdef IPOL_W
 
594
                        scan.w[0] += scan.slopeW[0];
 
595
                        scan.w[1] += scan.slopeW[1];
 
596
#endif
 
597
 
 
598
#ifdef IPOL_C0
 
599
                        scan.c[0][0] += scan.slopeC[0][0];
 
600
                        scan.c[0][1] += scan.slopeC[0][1];
 
601
#endif
 
602
 
 
603
#ifdef IPOL_T0
 
604
                        scan.t[0][0] += scan.slopeT[0][0];
 
605
                        scan.t[0][1] += scan.slopeT[0][1];
 
606
#endif
 
607
 
 
608
#ifdef IPOL_T1
 
609
                        scan.t[1][0] += scan.slopeT[1][0];
 
610
                        scan.t[1][1] += scan.slopeT[1][1];
 
611
#endif
 
612
 
 
613
                }
 
614
        }
 
615
 
 
616
 
 
617
}
 
618
 
 
619
 
 
620
} // end namespace video
 
621
} // end namespace irr
 
622
 
 
623
#endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_
 
624
 
 
625
namespace irr
 
626
{
 
627
namespace video
 
628
{
 
629
 
 
630
//! creates a flat triangle renderer
 
631
IBurningShader* createTriangleRendererGouraud2(CBurningVideoDriver* driver)
 
632
{
 
633
        #ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
 
634
        return new CTRGouraud2(driver);
 
635
        #else
 
636
        return 0;
 
637
        #endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_
 
638
}
 
639
 
 
640
 
 
641
} // end namespace video
 
642
} // end namespace irr
 
643
 
 
644
 
 
645