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1 | // File: OpenGl_View_2.cxx |
2 | // Created: 20 September 2011 | |
3 | // Author: Sergey ZERCHANINOV | |
4 | // Copyright: OPEN CASCADE 2011 | |
5 | ||
6 | #define G003 /* EUG 20-09-99 ; Animation management | |
7 | */ | |
8 | ||
9 | /*----------------------------------------------------------------------*/ | |
10 | /* | |
11 | * Includes | |
12 | */ | |
13 | ||
14 | #include <stdio.h> | |
15 | #include <stdlib.h> | |
16 | ||
17 | #include <OpenGl_tgl_all.hxx> | |
18 | #include <OpenGl_tgl_funcs.hxx> | |
19 | #include <OpenGl_TextureBox.hxx> | |
20 | ||
21 | #include <AlienImage.hxx> | |
22 | #include <Image_Image.hxx> | |
23 | #include <Visual3d_Layer.hxx> | |
24 | ||
25 | #if defined(WNT) | |
26 | #include <GL/glu.h> | |
27 | #endif | |
28 | ||
29 | #include <OpenGl_AspectLine.hxx> | |
30 | #include <OpenGl_Display.hxx> | |
31 | #include <OpenGl_Workspace.hxx> | |
32 | #include <OpenGl_View.hxx> | |
33 | #include <OpenGl_Trihedron.hxx> | |
34 | #include <OpenGl_GraduatedTrihedron.hxx> | |
35 | #include <OpenGl_PrinterContext.hxx> | |
36 | ||
37 | /*----------------------------------------------------------------------*/ | |
38 | /* | |
39 | * Constantes | |
40 | */ | |
41 | ||
42 | #define EPSI 0.0001 | |
43 | ||
44 | #ifndef M_PI | |
45 | # define M_PI 3.14159265358979323846 | |
46 | #endif | |
47 | ||
48 | static const GLfloat default_amb[4] = { 0.F, 0.F, 0.F, 1.F }; | |
49 | static const GLfloat default_sptdir[3] = { 0.F, 0.F, -1.F }; | |
50 | static const GLfloat default_sptexpo = 0.F; | |
51 | static const GLfloat default_sptcutoff = 180.F; | |
52 | ||
53 | extern void InitLayerProp (const int AListId); //szvgl: defined in OpenGl_GraphicDriver_Layer.cxx | |
54 | ||
55 | /*----------------------------------------------------------------------*/ | |
56 | ||
57 | struct OPENGL_CLIP_PLANE | |
58 | { | |
59 | GLboolean isEnabled; | |
60 | GLdouble Equation[4]; | |
61 | IMPLEMENT_MEMORY_OPERATORS | |
62 | }; | |
63 | ||
64 | /*----------------------------------------------------------------------*/ | |
65 | /* | |
66 | * Fonctions privees | |
67 | */ | |
68 | ||
69 | /*-----------------------------------------------------------------*/ | |
70 | /* | |
71 | * Set des lumieres | |
72 | */ | |
73 | static void bind_light(const OpenGl_Light *lptr, int *gl_lid) | |
74 | { | |
75 | // Only 8 lights in OpenGL... | |
76 | if (*gl_lid > GL_LIGHT7) return; | |
77 | ||
78 | // the light is a headlight ? | |
79 | GLint cur_matrix; | |
80 | if (lptr->HeadLight) | |
81 | { | |
82 | glGetIntegerv(GL_MATRIX_MODE, &cur_matrix); | |
83 | glMatrixMode(GL_MODELVIEW); | |
84 | glPushMatrix(); | |
85 | glLoadIdentity(); | |
86 | } | |
87 | ||
88 | GLfloat data_amb[4]; | |
89 | GLfloat data_diffu[4]; | |
90 | GLfloat data_pos[4]; | |
91 | GLfloat data_sptdir[3]; | |
92 | GLfloat data_sptexpo; | |
93 | GLfloat data_sptcutoff; | |
94 | GLfloat data_constantattenuation; | |
95 | GLfloat data_linearattenuation; | |
96 | ||
97 | /* set la light en fonction de son type */ | |
98 | switch (lptr->type) | |
99 | { | |
100 | case TLightAmbient: | |
101 | data_amb[0] = lptr->col.rgb[0]; | |
102 | data_amb[1] = lptr->col.rgb[1]; | |
103 | data_amb[2] = lptr->col.rgb[2]; | |
104 | data_amb[3] = 1.0; | |
105 | ||
106 | /*------------------------- Ambient ---------------------------*/ | |
107 | /* | |
108 | * The GL_AMBIENT parameter refers to RGBA intensity of the ambient | |
109 | * light. | |
110 | */ | |
111 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, data_amb); | |
112 | break; | |
113 | ||
114 | ||
115 | case TLightDirectional: | |
116 | data_diffu[0] = lptr->col.rgb[0]; | |
117 | data_diffu[1] = lptr->col.rgb[1]; | |
118 | data_diffu[2] = lptr->col.rgb[2]; | |
119 | data_diffu[3] = 1.0; | |
120 | ||
121 | /*------------------------- Direction ---------------------------*/ | |
122 | /* From Open GL Programming Rev 1 Guide Chapt 6 : | |
123 | Lighting The Mathematics of Lighting ( p 168 ) | |
124 | ||
125 | Directional Light Source ( Infinite ) : | |
126 | if the last parameter of GL_POSITION , w , is zero, the | |
127 | corresponding light source is a Directional one. | |
128 | ||
129 | GL_SPOT_CUTOFF a 180 signifie que ce n'est pas un spot. | |
130 | To create a realistic effect, set the GL_SPECULAR parameter | |
131 | to the same value as the GL_DIFFUSE. | |
132 | */ | |
133 | ||
134 | data_pos[0] = -lptr->dir[0]; | |
135 | data_pos[1] = -lptr->dir[1]; | |
136 | data_pos[2] = -lptr->dir[2]; | |
137 | data_pos[3] = 0.0; | |
138 | ||
139 | glLightfv(*gl_lid, GL_AMBIENT, default_amb); | |
140 | glLightfv(*gl_lid, GL_DIFFUSE, data_diffu); | |
141 | glLightfv(*gl_lid, GL_SPECULAR, data_diffu); | |
142 | ||
143 | glLightfv(*gl_lid, GL_POSITION, data_pos); | |
144 | glLightfv(*gl_lid, GL_SPOT_DIRECTION, default_sptdir); | |
145 | glLightf(*gl_lid, GL_SPOT_EXPONENT, default_sptexpo); | |
146 | glLightf(*gl_lid, GL_SPOT_CUTOFF, default_sptcutoff); | |
147 | break; | |
148 | ||
149 | ||
150 | case TLightPositional: | |
151 | data_diffu[0] = lptr->col.rgb[0]; | |
152 | data_diffu[1] = lptr->col.rgb[1]; | |
153 | data_diffu[2] = lptr->col.rgb[2]; | |
154 | data_diffu[3] = 1.0; | |
155 | ||
156 | /*------------------------- Position -----------------------------*/ | |
157 | /* From Open GL Programming Rev 1 Guide Chapt 6 : | |
158 | Lighting The Mathematics of Lighting ( p 168 ) | |
159 | Positional Light Source : | |
160 | if the last parameter of GL_POSITION , w , is nonzero, | |
161 | the corresponding light source is a Positional one. | |
162 | ||
163 | GL_SPOT_CUTOFF a 180 signifie que ce n'est pas un spot. | |
164 | ||
165 | To create a realistic effect, set the GL_SPECULAR parameter | |
166 | to the same value as the GL_DIFFUSE. | |
167 | */ | |
168 | ||
169 | data_pos[0] = lptr->pos[0]; | |
170 | data_pos[1] = lptr->pos[1]; | |
171 | data_pos[2] = lptr->pos[2]; | |
172 | data_pos[3] = 1.0; | |
173 | ||
174 | data_constantattenuation = lptr->atten[0]; | |
175 | data_linearattenuation = lptr->atten[1]; | |
176 | ||
177 | glLightfv(*gl_lid, GL_AMBIENT, default_amb); | |
178 | glLightfv(*gl_lid, GL_DIFFUSE, data_diffu); | |
179 | glLightfv(*gl_lid, GL_SPECULAR, data_diffu); | |
180 | ||
181 | glLightfv(*gl_lid, GL_POSITION, data_pos); | |
182 | glLightfv(*gl_lid, GL_SPOT_DIRECTION, default_sptdir); | |
183 | glLightf(*gl_lid, GL_SPOT_EXPONENT, default_sptexpo); | |
184 | glLightf(*gl_lid, GL_SPOT_CUTOFF, default_sptcutoff); | |
185 | glLightf(*gl_lid, GL_CONSTANT_ATTENUATION, data_constantattenuation); | |
186 | glLightf(*gl_lid, GL_LINEAR_ATTENUATION, data_linearattenuation); | |
187 | glLightf(*gl_lid, GL_QUADRATIC_ATTENUATION, 0.0); | |
188 | break; | |
189 | ||
190 | ||
191 | case TLightSpot: | |
192 | data_diffu[0] = lptr->col.rgb[0]; | |
193 | data_diffu[1] = lptr->col.rgb[1]; | |
194 | data_diffu[2] = lptr->col.rgb[2]; | |
195 | data_diffu[3] = 1.0; | |
196 | ||
197 | data_pos[0] = lptr->pos[0]; | |
198 | data_pos[1] = lptr->pos[1]; | |
199 | data_pos[2] = lptr->pos[2]; | |
200 | data_pos[3] = 1.0; | |
201 | ||
202 | data_sptdir[0] = lptr->dir[0]; | |
203 | data_sptdir[1] = lptr->dir[1]; | |
204 | data_sptdir[2] = lptr->dir[2]; | |
205 | ||
206 | data_sptexpo = ( float )lptr->shine * 128.0F; | |
207 | data_sptcutoff = ( float )(lptr->angle * 180.0F)/( float )M_PI; | |
208 | ||
209 | data_constantattenuation = lptr->atten[0]; | |
210 | data_linearattenuation = lptr->atten[1]; | |
211 | ||
212 | glLightfv(*gl_lid, GL_AMBIENT, default_amb); | |
213 | glLightfv(*gl_lid, GL_DIFFUSE, data_diffu); | |
214 | glLightfv(*gl_lid, GL_SPECULAR, data_diffu); | |
215 | ||
216 | glLightfv(*gl_lid, GL_POSITION, data_pos); | |
217 | glLightfv(*gl_lid, GL_SPOT_DIRECTION, data_sptdir); | |
218 | glLightf(*gl_lid, GL_SPOT_EXPONENT, data_sptexpo); | |
219 | glLightf(*gl_lid, GL_SPOT_CUTOFF, data_sptcutoff); | |
220 | glLightf(*gl_lid, GL_CONSTANT_ATTENUATION, data_constantattenuation); | |
221 | glLightf(*gl_lid, GL_LINEAR_ATTENUATION, data_linearattenuation); | |
222 | glLightf(*gl_lid, GL_QUADRATIC_ATTENUATION, 0.0); | |
223 | break; | |
224 | } | |
225 | ||
226 | if (lptr->type != TLightAmbient) | |
227 | { | |
228 | glEnable(*gl_lid); | |
229 | (*gl_lid)++; | |
230 | } | |
231 | ||
232 | /* si la light etait une headlight alors restaure la matrice precedente */ | |
233 | if (lptr->HeadLight) | |
234 | { | |
235 | glPopMatrix(); | |
236 | glMatrixMode(cur_matrix); | |
237 | } | |
238 | } | |
239 | ||
240 | /*----------------------------------------------------------------------*/ | |
241 | /* | |
242 | * Prototypes | |
243 | */ | |
244 | ||
245 | static void call_util_apply_trans2( float ix, float iy, float iz, matrix3 mat, | |
246 | float *ox, float *oy, float *oz ); | |
247 | static void call_util_mat_mul( matrix3 mat_a, matrix3 mat_b, matrix3 mat_c); | |
248 | ||
249 | /*----------------------------------------------------------------------*/ | |
250 | /* | |
251 | * Fonctions externes | |
252 | */ | |
253 | ||
254 | /* | |
255 | * Evaluates orientation matrix. | |
256 | */ | |
257 | /* OCC18942: obsolete in OCCT6.3, might be removed in further versions! */ | |
258 | void call_func_eval_ori_matrix3 (const point3* vrp, // view reference point | |
259 | const vec3* vpn, // view plane normal | |
260 | const vec3* vup, // view up vector | |
261 | int* err_ind, | |
262 | float mout[4][4]) // OUT view orientation matrix | |
263 | { | |
264 | ||
265 | /* Translate to VRP then change the basis. | |
266 | * The old basis is: e1 = < 1, 0, 0>, e2 = < 0, 1, 0>, e3 = < 0, 0, 1>. | |
267 | * The new basis is: ("x" means cross product) | |
268 | * e3' = VPN / |VPN| | |
269 | * e1' = VUP x VPN / |VUP x VPN| | |
270 | * e2' = e3' x e1' | |
271 | * Therefore the transform from old to new is x' = TAx, where: | |
272 | * | |
273 | * | e1'x e2'x e3'x 0 | | 1 0 0 0 | | |
274 | * A = | e1'y e2'y e3'y 0 |, T = | 0 1 0 0 | | |
275 | * | e1'z e2'z e3'z 0 | | 0 0 1 0 | | |
276 | * | 0 0 0 1 | | -vrp.x -vrp.y -vrp.z 1 | | |
277 | * | |
278 | */ | |
279 | ||
280 | /* | |
281 | * These ei's are really ei primes. | |
282 | */ | |
283 | register float (*m)[4][4]; | |
284 | point3 e1, e2, e3, e4; | |
285 | double s, v; | |
286 | ||
287 | /* | |
288 | * e1' = VUP x VPN / |VUP x VPN|, but do the division later. | |
289 | */ | |
290 | e1.x = vup->delta_y * vpn->delta_z - vup->delta_z * vpn->delta_y; | |
291 | e1.y = vup->delta_z * vpn->delta_x - vup->delta_x * vpn->delta_z; | |
292 | e1.z = vup->delta_x * vpn->delta_y - vup->delta_y * vpn->delta_x; | |
293 | s = sqrt( e1.x * e1.x + e1.y * e1.y + e1.z * e1.z); | |
294 | e3.x = vpn->delta_x; | |
295 | e3.y = vpn->delta_y; | |
296 | e3.z = vpn->delta_z; | |
297 | v = sqrt( e3.x * e3.x + e3.y * e3.y + e3.z * e3.z); | |
298 | /* | |
299 | * Check for vup and vpn colinear (zero dot product). | |
300 | */ | |
301 | if ((s > -EPSI) && (s < EPSI)) | |
302 | *err_ind = 2; | |
303 | else | |
304 | /* | |
305 | * Check for a normal vector not null. | |
306 | */ | |
307 | if ((v > -EPSI) && (v < EPSI)) | |
308 | *err_ind = 3; | |
309 | else { | |
310 | /* | |
311 | * Normalize e1 | |
312 | */ | |
313 | e1.x /= ( float )s; | |
314 | e1.y /= ( float )s; | |
315 | e1.z /= ( float )s; | |
316 | /* | |
317 | * e3 = VPN / |VPN| | |
318 | */ | |
319 | e3.x /= ( float )v; | |
320 | e3.y /= ( float )v; | |
321 | e3.z /= ( float )v; | |
322 | /* | |
323 | * e2 = e3 x e1 | |
324 | */ | |
325 | e2.x = e3.y * e1.z - e3.z * e1.y; | |
326 | e2.y = e3.z * e1.x - e3.x * e1.z; | |
327 | e2.z = e3.x * e1.y - e3.y * e1.x; | |
328 | /* | |
329 | * Add the translation | |
330 | */ | |
331 | e4.x = -( e1.x * vrp->x + e1.y * vrp->y + e1.z * vrp->z); | |
332 | e4.y = -( e2.x * vrp->x + e2.y * vrp->y + e2.z * vrp->z); | |
333 | e4.z = -( e3.x * vrp->x + e3.y * vrp->y + e3.z * vrp->z); | |
334 | /* | |
335 | * Homogeneous entries | |
336 | * | |
337 | * | e1.x e2.x e3.x 0.0 | | 1 0 0 0 | | |
338 | * | e1.y e2.y e3.y 0.0 | * | 0 1 0 0 | | |
339 | * | e1.z e2.z e3.z 0.0 | | a b 1 c | | |
340 | * | e4.x e4.y e4.z 1.0 | | 0 0 0 1 | | |
341 | */ | |
342 | ||
343 | m = (float (*)[4][4])mout; | |
344 | ||
345 | (*m)[0][0] = e1.x; | |
346 | (*m)[0][1] = e2.x; | |
347 | (*m)[0][2] = e3.x; | |
348 | (*m)[0][3] = ( float )0.0; | |
349 | ||
350 | (*m)[1][0] = e1.y; | |
351 | (*m)[1][1] = e2.y; | |
352 | (*m)[1][2] = e3.y; | |
353 | (*m)[1][3] = ( float )0.0; | |
354 | ||
355 | (*m)[2][0] = e1.z; | |
356 | (*m)[2][1] = e2.z; | |
357 | (*m)[2][2] = e3.z; | |
358 | (*m)[2][3] = ( float )0.0; | |
359 | ||
360 | (*m)[3][0] = e4.x; | |
361 | (*m)[3][1] = e4.y; | |
362 | (*m)[3][2] = e4.z; | |
363 | (*m)[3][3] = ( float )1.0; | |
364 | ||
365 | *err_ind = 0; | |
366 | } | |
367 | } | |
368 | ||
369 | /*----------------------------------------------------------------------*/ | |
370 | /* | |
371 | * Evaluates mapping matrix. | |
372 | */ | |
373 | /* OCC18942: obsolete in OCCT6.3, might be removed in further versions! */ | |
374 | void call_func_eval_map_matrix3( | |
375 | view_map3 *Map, | |
376 | int *err_ind, | |
377 | matrix3 mat) | |
378 | { | |
379 | int i, j; | |
380 | matrix3 Tpar, Spar; | |
381 | matrix3 Tper, Sper; | |
382 | matrix3 Shear; | |
383 | matrix3 Scale; | |
384 | matrix3 Tprp; | |
385 | matrix3 aux_mat1, aux_mat2, aux_mat3; | |
386 | point3 Prp; | |
387 | ||
388 | *err_ind = 0; | |
389 | for (i=0; i<4; i++) | |
390 | for (j=0; j<4; j++) | |
391 | Spar[i][j] = Sper[i][j] = aux_mat1[i][j] = aux_mat2[i][j] = | |
392 | aux_mat3[i][j] = Tper[i][j] = Tpar[i][j] = Tprp[i][j] = | |
393 | Shear[i][j] = Scale[i][j] = ( float )(i == j); | |
394 | ||
395 | Prp.x = Map->proj_ref_point.x; | |
396 | Prp.y = Map->proj_ref_point.y; | |
397 | Prp.z = Map->proj_ref_point.z; | |
398 | ||
399 | /* | |
400 | * Type Parallele | |
401 | */ | |
402 | if (Map->proj_type == TYPE_PARAL) | |
403 | { | |
404 | float umid, vmid; | |
405 | point3 temp; | |
406 | ||
407 | #ifdef FMN | |
408 | float cx, cy, gx, gy, xsf, ysf, zsf; | |
409 | float fpd, bpd; | |
410 | float dopx, dopy, dopz; | |
411 | matrix3 tmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
412 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
413 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
414 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
415 | matrix3 smat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
416 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
417 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
418 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
419 | matrix3 shmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
420 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
421 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
422 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
423 | matrix3 tshmat = { { ( float )1.0, ( float )0.0, ( float )0.0, ( float )0.0 }, | |
424 | { ( float )0.0, ( float )1.0, ( float )0.0, ( float )0.0 }, | |
425 | { ( float )0.0, ( float )0.0, ( float )1.0, ( float )0.0 }, | |
426 | { ( float )0.0, ( float )0.0, ( float )0.0, ( float )1.0 } }; | |
427 | ||
428 | /* centers */ | |
429 | cx = Map->win.x_min + Map->win.x_max, cx /= ( float )2.0; | |
430 | cy = Map->win.y_min + Map->win.y_max, cy /= ( float )2.0; | |
431 | ||
432 | gx = 2.0/ (Map->win.x_max - Map->win.x_min); | |
433 | gy = 2.0/ (Map->win.y_max - Map->win.y_min); | |
434 | ||
435 | tmat[0][3] = -cx; | |
436 | tmat[1][3] = -cy; | |
437 | tmat[2][3] = (Map->front_plane + Map->back_plane)/(Map->front_plane - Map->back_plane); | |
438 | ||
439 | smat[0][0] = gx; | |
440 | smat[1][1] = gy; | |
441 | smat[2][2] = -2./(Map->front_plane - Map->back_plane); | |
442 | ||
443 | /* scale factors */ | |
444 | dopx = cx - Prp.x; | |
445 | dopy = cy - Prp.y; | |
446 | dopz = - Prp.z; | |
447 | ||
448 | /* map matrix */ | |
449 | shmat[0][2] = -(dopx/dopz); | |
450 | shmat[1][2] = -(dopy/dopz); | |
451 | ||
452 | /* multiply to obtain mapping matrix */ | |
453 | call_util_mat_mul( tmat, shmat, tshmat ); | |
454 | call_util_mat_mul( smat, tshmat, mat ); | |
455 | ||
456 | return; | |
457 | #endif | |
458 | ||
459 | /* CAL */ | |
460 | Map->proj_vp.z_min = ( float )0.0; | |
461 | Map->proj_vp.z_max = ( float )1.0; | |
462 | /* CAL */ | |
463 | ||
464 | /* Shear matrix calculation */ | |
465 | umid = ( float )(Map->win.x_min+Map->win.x_max)/( float )2.0; | |
466 | vmid = ( float )(Map->win.y_min+Map->win.y_max)/( float )2.0; | |
467 | if(Prp.z == Map->view_plane){ | |
468 | /* Projection reference point is on the view plane */ | |
469 | *err_ind = 1; | |
470 | return; | |
471 | } | |
472 | Shear[2][0] = ( float )(-1.0) * ((Prp.x-umid)/(Prp.z-Map->view_plane)); | |
473 | Shear[2][1] = ( float )(-1.0) * ((Prp.y-vmid)/(Prp.z-Map->view_plane)); | |
474 | ||
475 | /* | |
476 | * Calculate the lower left coordinate of the view plane | |
477 | * after the Shearing Transformation. | |
478 | */ | |
479 | call_util_apply_trans2(Map->win.x_min, Map->win.y_min, | |
480 | Map->view_plane, Shear, &(temp.x), &(temp.y), &(temp.z)); | |
481 | ||
482 | /* Translate the back plane to the origin */ | |
483 | Tpar[3][0] = ( float )(-1.0) * temp.x; | |
484 | Tpar[3][1] = ( float )(-1.0) * temp.y; | |
485 | Tpar[3][2] = ( float )(-1.0) * Map->back_plane; | |
486 | ||
487 | call_util_mat_mul(Shear, Tpar, aux_mat1); | |
488 | ||
489 | /* Calculation of Scaling transformation */ | |
490 | Spar[0][0] = ( float )1.0 / (Map->win.x_max - Map->win.x_min); | |
491 | Spar[1][1] = ( float )1.0 / (Map->win.y_max - Map->win.y_min); | |
492 | Spar[2][2] = ( float )1.0 / (Map->front_plane - Map->back_plane ); | |
493 | call_util_mat_mul (aux_mat1, Spar, aux_mat2); | |
494 | /* Atlast we transformed view volume to NPC */ | |
495 | ||
496 | /* Translate and scale the view plane to projection view port */ | |
497 | if(Map->proj_vp.x_min < 0.0 || Map->proj_vp.y_min < 0.0 || | |
498 | Map->proj_vp.z_min < 0.0 || Map->proj_vp.x_max > 1.0 || | |
499 | Map->proj_vp.y_max > 1.0 || Map->proj_vp.z_max > 1.0 || | |
500 | Map->proj_vp.x_min > Map->proj_vp.x_max || | |
501 | Map->proj_vp.y_min > Map->proj_vp.y_max || | |
502 | Map->proj_vp.z_min > Map->proj_vp.z_max){ | |
503 | *err_ind = 1; | |
504 | return; | |
505 | } | |
506 | for(i=0; i<4; i++) | |
507 | for(j=0; j<4; j++) | |
508 | aux_mat1[i][j] = (float)(i==j); | |
509 | aux_mat1[0][0] = Map->proj_vp.x_max-Map->proj_vp.x_min; | |
510 | aux_mat1[1][1] = Map->proj_vp.y_max-Map->proj_vp.y_min; | |
511 | aux_mat1[2][2] = Map->proj_vp.z_max-Map->proj_vp.z_min; | |
512 | aux_mat1[3][0] = Map->proj_vp.x_min; | |
513 | aux_mat1[3][1] = Map->proj_vp.y_min; | |
514 | aux_mat1[3][2] = Map->proj_vp.z_min; | |
515 | call_util_mat_mul (aux_mat2, aux_mat1, mat); | |
516 | ||
517 | return; | |
518 | } | |
519 | ||
520 | /* | |
521 | * Type Perspective | |
522 | */ | |
523 | else if (Map->proj_type == TYPE_PERSPECT) | |
524 | { | |
525 | float umid, vmid; | |
526 | float B, F, V; | |
527 | float Zvmin; | |
528 | ||
529 | /* CAL */ | |
530 | Map->proj_vp.z_min = ( float )0.0; | |
531 | Map->proj_vp.z_max = ( float )1.0; | |
532 | /* CAL */ | |
533 | ||
534 | B = Map->back_plane; | |
535 | F = Map->front_plane; | |
536 | V = Map->view_plane; | |
537 | ||
538 | if(Prp.z == Map->view_plane){ | |
539 | /* Centre of Projection is on the view plane */ | |
540 | *err_ind = 1; | |
541 | return; | |
542 | } | |
543 | if(Map->proj_vp.x_min < 0.0 || Map->proj_vp.y_min < 0.0 || | |
544 | Map->proj_vp.z_min < 0.0 || Map->proj_vp.x_max > 1.0 || | |
545 | Map->proj_vp.y_max > 1.0 || Map->proj_vp.z_max > 1.0 || | |
546 | Map->proj_vp.x_min > Map->proj_vp.x_max || | |
547 | Map->proj_vp.y_min > Map->proj_vp.y_max || | |
548 | Map->proj_vp.z_min > Map->proj_vp.z_max || | |
549 | F < B){ | |
550 | *err_ind = 1; | |
551 | return; | |
552 | } | |
553 | ||
554 | /* This is the transformation to move VRC to Center Of Projection */ | |
555 | Tprp[3][0] = ( float )(-1.0)*Prp.x; | |
556 | Tprp[3][1] = ( float )(-1.0)*Prp.y; | |
557 | Tprp[3][2] = ( float )(-1.0)*Prp.z; | |
558 | ||
559 | /* Calculation of Shear matrix */ | |
560 | umid = ( float )(Map->win.x_min+Map->win.x_max)/( float )2.0-Prp.x; | |
561 | vmid = ( float )(Map->win.y_min+Map->win.y_max)/( float )2.0-Prp.y; | |
562 | Shear[2][0] = ( float )(-1.0)*umid/(Map->view_plane-Prp.z); | |
563 | Shear[2][1] = ( float )(-1.0)*vmid/(Map->view_plane-Prp.z); | |
564 | call_util_mat_mul(Tprp, Shear, aux_mat3); | |
565 | ||
566 | /* Scale the view volume to canonical view volume | |
567 | * Centre of projection at origin. | |
568 | * 0 <= N <= -1, -0.5 <= U <= 0.5, -0.5 <= V <= 0.5 | |
569 | */ | |
570 | Scale[0][0] = (( float )(-1.0)*Prp.z+V)/ | |
571 | ((Map->win.x_max-Map->win.x_min)*(( float )(-1.0)*Prp.z+B)); | |
572 | Scale[1][1] = (( float )(-1.0)*Prp.z+V)/ | |
573 | ((Map->win.y_max-Map->win.y_min)*(( float )(-1.0)*Prp.z+B)); | |
574 | Scale[2][2] = ( float )(-1.0) / (( float )(-1.0)*Prp.z+B); | |
575 | ||
576 | call_util_mat_mul(aux_mat3, Scale, aux_mat1); | |
577 | ||
578 | /* | |
579 | * Transform the Perspective view volume into | |
580 | * Parallel view volume. | |
581 | * Lower left coordinate: (-0.5,-0.5, -1) | |
582 | * Upper right coordinate: (0.5, 0.5, 1.0) | |
583 | */ | |
584 | Zvmin = ( float )(-1.0*(-1.0*Prp.z+F)/(-1.0*Prp.z+B)); | |
585 | aux_mat2[2][2] = ( float )1.0/(( float )1.0+Zvmin); | |
586 | aux_mat2[2][3] = ( float )(-1.0); | |
587 | aux_mat2[3][2] = ( float )(-1.0)*Zvmin*aux_mat2[2][2]; | |
588 | aux_mat2[3][3] = ( float )0.0; | |
589 | call_util_mat_mul(aux_mat1, aux_mat2, Shear); | |
590 | ||
591 | for(i=0; i<4; i++) | |
592 | for(j=0; j<4; j++) | |
593 | aux_mat1[i][j] = aux_mat2[i][j] = (float)(i==j); | |
594 | ||
595 | /* Translate and scale the view plane to projection view port */ | |
596 | aux_mat2[0][0] = (Map->proj_vp.x_max-Map->proj_vp.x_min); | |
597 | aux_mat2[1][1] = (Map->proj_vp.y_max-Map->proj_vp.y_min); | |
598 | aux_mat2[2][2] = (Map->proj_vp.z_max-Map->proj_vp.z_min); | |
599 | aux_mat2[3][0] = aux_mat2[0][0]/( float )2.0+Map->proj_vp.x_min; | |
600 | aux_mat2[3][1] = aux_mat2[1][1]/( float )2.0+Map->proj_vp.y_min; | |
601 | aux_mat2[3][2] = aux_mat2[2][2]+Map->proj_vp.z_min; | |
602 | call_util_mat_mul (Shear, aux_mat2, mat); | |
603 | ||
604 | return; | |
605 | } | |
606 | else | |
607 | *err_ind = 1; | |
608 | } | |
609 | ||
610 | /*----------------------------------------------------------------------*/ | |
611 | ||
612 | static void | |
613 | call_util_apply_trans2( float ix, float iy, float iz, matrix3 mat, | |
614 | float *ox, float *oy, float *oz ) | |
615 | { | |
616 | float temp; | |
617 | *ox = ix*mat[0][0]+iy*mat[1][0]+iz*mat[2][0]+mat[3][0]; | |
618 | *oy = ix*mat[0][1]+iy*mat[1][1]+iz*mat[2][1]+mat[3][1]; | |
619 | *oz = ix*mat[0][2]+iy*mat[1][2]+iz*mat[2][2]+mat[3][2]; | |
620 | temp = ix * mat[0][3]+iy * mat[1][3]+iz * mat[2][3]+mat[3][3]; | |
621 | *ox /= temp; | |
622 | *oy /= temp; | |
623 | *oz /= temp; | |
624 | } | |
625 | ||
626 | /*----------------------------------------------------------------------*/ | |
627 | ||
628 | static void | |
629 | call_util_mat_mul( matrix3 mat_a, matrix3 mat_b, matrix3 mat_c) | |
630 | { | |
631 | int i, j, k; | |
632 | ||
633 | for (i=0; i<4; i++) | |
634 | for (j=0; j<4; j++) | |
635 | for (mat_c[i][j] = ( float )0.0,k=0; k<4; k++) | |
636 | mat_c[i][j] += mat_a[i][k] * mat_b[k][j]; | |
637 | } | |
638 | ||
639 | /*----------------------------------------------------------------------*/ | |
640 | ||
641 | //call_func_redraw_all_structs_proc | |
642 | void OpenGl_View::Render (const Handle(OpenGl_Workspace) &AWorkspace, | |
643 | const Graphic3d_CView& ACView, | |
644 | const Aspect_CLayer2d& ACUnderLayer, | |
645 | const Aspect_CLayer2d& ACOverLayer) | |
646 | { | |
647 | // Reset FLIST status after modification of myBackfacing | |
648 | if (myResetFLIST) | |
649 | { | |
650 | AWorkspace->NamedStatus &= ~OPENGL_NS_FLIST; | |
651 | myResetFLIST = Standard_False; | |
652 | } | |
653 | ||
654 | // Store and disable current clipping planes | |
655 | GLint maxplanes; | |
656 | glGetIntegerv(GL_MAX_CLIP_PLANES, &maxplanes); | |
657 | const GLenum lastid = GL_CLIP_PLANE0 + maxplanes; | |
658 | OPENGL_CLIP_PLANE *oldPlanes = new OPENGL_CLIP_PLANE[maxplanes]; | |
659 | OPENGL_CLIP_PLANE *ptrPlane = oldPlanes; | |
660 | GLenum planeid = GL_CLIP_PLANE0; | |
661 | for ( ; planeid < lastid; planeid++, ptrPlane++ ) | |
662 | { | |
663 | glGetClipPlane( planeid, ptrPlane->Equation ); | |
664 | if ( ptrPlane->isEnabled ) | |
665 | { | |
666 | glDisable( planeid ); | |
667 | ptrPlane->isEnabled = GL_TRUE; | |
668 | } | |
669 | else | |
670 | ptrPlane->isEnabled = GL_FALSE; | |
671 | } | |
672 | ||
673 | ///////////////////////////////////////////////////////////////////////////// | |
674 | // Step 1: Prepare for redraw | |
675 | ||
676 | // Render background | |
677 | if ( (AWorkspace->NamedStatus & OPENGL_NS_WHITEBACK) == 0 && | |
678 | ( myBgTexture.TexId != 0 || myBgGradient.type != Aspect_GFM_NONE ) ) | |
679 | { | |
680 | const Standard_Integer aViewWidth = AWorkspace->Width(); | |
681 | const Standard_Integer aViewHeight = AWorkspace->Height(); | |
682 | ||
683 | glPushAttrib( GL_ENABLE_BIT | GL_TEXTURE_BIT ); | |
684 | ||
685 | glMatrixMode( GL_PROJECTION ); | |
686 | glPushMatrix(); | |
687 | glLoadIdentity(); | |
688 | glMatrixMode( GL_MODELVIEW ); | |
689 | glPushMatrix(); | |
690 | glLoadIdentity(); | |
691 | ||
692 | if ( glIsEnabled( GL_DEPTH_TEST ) ) | |
693 | glDisable( GL_DEPTH_TEST ); //push GL_ENABLE_BIT | |
694 | ||
695 | // drawing bg image if defined | |
696 | if ( myBgTexture.TexId != 0 ) | |
697 | { | |
698 | GLfloat texX_range = 1.F; // texture <s> coordinate | |
699 | GLfloat texY_range = 1.F; // texture <t> coordinate | |
700 | ||
701 | // Set up for stretching or tiling | |
702 | GLfloat x_offset, y_offset; | |
703 | if ( myBgTexture.Style == Aspect_FM_CENTERED ) | |
704 | { | |
705 | x_offset = (GLfloat)myBgTexture.Width / (GLfloat)aViewWidth; | |
706 | y_offset = (GLfloat)myBgTexture.Height / (GLfloat)aViewHeight; | |
707 | } | |
708 | else | |
709 | { | |
710 | x_offset = 1.F; | |
711 | y_offset = 1.F; | |
712 | if ( myBgTexture.Style == Aspect_FM_TILED ) | |
713 | { | |
714 | texX_range = (GLfloat)aViewWidth / (GLfloat)myBgTexture.Width; | |
715 | texY_range = (GLfloat)aViewHeight / (GLfloat)myBgTexture.Height; | |
716 | } | |
717 | } | |
718 | ||
719 | glEnable( GL_TEXTURE_2D ); //push GL_ENABLE_BIT | |
720 | glBindTexture( GL_TEXTURE_2D, myBgTexture.TexId ); //push GL_TEXTURE_BIT | |
721 | ||
722 | glDisable( GL_BLEND ); //push GL_ENABLE_BIT | |
723 | ||
724 | glColor3fv( AWorkspace->BackgroundColor().rgb ); | |
725 | glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); //push GL_TEXTURE_BIT | |
726 | ||
727 | glBegin( GL_QUADS ); | |
728 | glTexCoord2f(0.F, 0.F); glVertex2f( -x_offset, -y_offset ); | |
729 | glTexCoord2f(texX_range, 0.F); glVertex2f( x_offset, -y_offset ); | |
730 | glTexCoord2f(texX_range, texY_range); glVertex2f( x_offset, y_offset ); | |
731 | glTexCoord2f(0.F, texY_range); glVertex2f( -x_offset, y_offset ); | |
732 | glEnd(); | |
733 | } | |
734 | else //if( myBgGradient.type != Aspect_GFM_NONE ) | |
735 | { | |
736 | Tfloat* corner1 = 0;/* -1,-1*/ | |
737 | Tfloat* corner2 = 0;/* 1,-1*/ | |
738 | Tfloat* corner3 = 0;/* 1, 1*/ | |
739 | Tfloat* corner4 = 0;/* -1, 1*/ | |
740 | Tfloat dcorner1[3]; | |
741 | Tfloat dcorner2[3]; | |
742 | ||
743 | switch( myBgGradient.type ) | |
744 | { | |
745 | case Aspect_GFM_HOR: | |
746 | corner1 = myBgGradient.color2.rgb; | |
747 | corner2 = myBgGradient.color2.rgb; | |
748 | corner3 = myBgGradient.color1.rgb; | |
749 | corner4 = myBgGradient.color1.rgb; | |
750 | break; | |
751 | case Aspect_GFM_VER: | |
752 | corner1 = myBgGradient.color2.rgb; | |
753 | corner2 = myBgGradient.color1.rgb; | |
754 | corner3 = myBgGradient.color1.rgb; | |
755 | corner4 = myBgGradient.color2.rgb; | |
756 | break; | |
757 | case Aspect_GFM_DIAG1: | |
758 | corner2 = myBgGradient.color2.rgb; | |
759 | corner4 = myBgGradient.color1.rgb; | |
760 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner2[0] + corner4[0]); | |
761 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner2[1] + corner4[1]); | |
762 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner2[2] + corner4[2]); | |
763 | corner1 = dcorner1; | |
764 | corner3 = dcorner2; | |
765 | break; | |
766 | case Aspect_GFM_DIAG2: | |
767 | corner1 = myBgGradient.color2.rgb; | |
768 | corner3 = myBgGradient.color1.rgb; | |
769 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner1[0] + corner3[0]); | |
770 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner1[1] + corner3[1]); | |
771 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner1[2] + corner3[2]); | |
772 | corner2 = dcorner1; | |
773 | corner4 = dcorner2; | |
774 | break; | |
775 | case Aspect_GFM_CORNER1: | |
776 | corner1 = myBgGradient.color1.rgb; | |
777 | corner2 = myBgGradient.color2.rgb; | |
778 | corner3 = myBgGradient.color2.rgb; | |
779 | corner4 = myBgGradient.color2.rgb; | |
780 | break; | |
781 | case Aspect_GFM_CORNER2: | |
782 | corner1 = myBgGradient.color2.rgb; | |
783 | corner2 = myBgGradient.color1.rgb; | |
784 | corner3 = myBgGradient.color2.rgb; | |
785 | corner4 = myBgGradient.color2.rgb; | |
786 | break; | |
787 | case Aspect_GFM_CORNER3: | |
788 | corner1 = myBgGradient.color2.rgb; | |
789 | corner2 = myBgGradient.color2.rgb; | |
790 | corner3 = myBgGradient.color1.rgb; | |
791 | corner4 = myBgGradient.color2.rgb; | |
792 | break; | |
793 | case Aspect_GFM_CORNER4: | |
794 | corner1 = myBgGradient.color2.rgb; | |
795 | corner2 = myBgGradient.color2.rgb; | |
796 | corner3 = myBgGradient.color2.rgb; | |
797 | corner4 = myBgGradient.color1.rgb; | |
798 | break; | |
799 | default: | |
800 | //printf("gradient background type not right\n"); | |
801 | break; | |
802 | } | |
803 | ||
804 | // Save GL parameters | |
805 | glDisable( GL_LIGHTING ); //push GL_ENABLE_BIT | |
806 | ||
807 | GLint curSM; | |
808 | glGetIntegerv( GL_SHADE_MODEL, &curSM ); | |
809 | if ( curSM != GL_SMOOTH ) | |
810 | glShadeModel( GL_SMOOTH ); //push GL_LIGHTING_BIT | |
811 | ||
812 | glBegin(GL_TRIANGLE_FAN); | |
813 | if( myBgGradient.type != Aspect_GFM_CORNER2 && myBgGradient.type != Aspect_GFM_CORNER4 ) | |
814 | { | |
815 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
816 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
817 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
818 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
819 | } | |
820 | else //if ( myBgGradient.type == Aspect_GFM_CORNER2 || myBgGradient.type == Aspect_GFM_CORNER4 ) | |
821 | { | |
822 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
823 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
824 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
825 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
826 | } | |
827 | glEnd(); | |
828 | ||
829 | // Restore GL parameters | |
830 | if ( curSM != GL_SMOOTH ) | |
831 | glShadeModel( curSM ); | |
832 | } | |
833 | ||
834 | glPopMatrix(); | |
835 | glMatrixMode( GL_PROJECTION ); | |
836 | glPopMatrix(); | |
837 | glMatrixMode( GL_MODELVIEW ); | |
838 | ||
839 | glPopAttrib(); //GL_ENABLE_BIT | GL_TEXTURE_BIT | |
840 | ||
841 | if ( AWorkspace->UseZBuffer() ) | |
842 | glEnable( GL_DEPTH_TEST ); | |
843 | ||
844 | /* GL_DITHER on/off pour le trace */ | |
845 | if (AWorkspace->Dither()) | |
846 | glEnable (GL_DITHER); | |
847 | else | |
848 | glDisable (GL_DITHER); | |
849 | } | |
850 | ||
851 | // Switch off lighting by default | |
852 | glDisable(GL_LIGHTING); | |
853 | ||
854 | ///////////////////////////////////////////////////////////////////////////// | |
855 | // Step 2: Draw underlayer | |
856 | RedrawLayer2d(AWorkspace, ACView, ACUnderLayer); | |
857 | ||
858 | ///////////////////////////////////////////////////////////////////////////// | |
859 | // Step 3: Redraw main plane | |
860 | ||
861 | // Setup face culling | |
862 | GLboolean isCullFace = GL_FALSE; | |
863 | if ( myBackfacing ) | |
864 | { | |
865 | isCullFace = glIsEnabled( GL_CULL_FACE ); | |
866 | if ( myBackfacing < 0 ) | |
867 | { | |
868 | glEnable( GL_CULL_FACE ); | |
869 | glCullFace( GL_BACK ); | |
870 | } | |
871 | else | |
872 | glDisable( GL_CULL_FACE ); | |
873 | } | |
874 | ||
875 | //TsmPushAttri(); /* save previous graphics context */ | |
876 | ||
877 | // if the view is scaled normal vectors are scaled to unit length for correct displaying of shaded objects | |
878 | if(myExtra.scaleFactors[0] != 1.F || | |
879 | myExtra.scaleFactors[1] != 1.F || | |
880 | myExtra.scaleFactors[2] != 1.F) | |
881 | glEnable(GL_NORMALIZE); | |
882 | else if(glIsEnabled(GL_NORMALIZE)) | |
883 | glDisable(GL_NORMALIZE); | |
884 | ||
885 | // Apply View Projection | |
886 | // This routine activates the Projection matrix for a view. | |
887 | ||
888 | glMatrixMode( GL_PROJECTION ); | |
889 | ||
890 | #ifdef WNT | |
891 | // add printing scale/tiling transformation | |
892 | OpenGl_PrinterContext* aPrinterContext = OpenGl_PrinterContext::GetPrinterContext(AWorkspace->GetGContext()); | |
893 | ||
894 | if (aPrinterContext) | |
895 | { | |
896 | GLfloat aProjMatrix[16]; | |
897 | aPrinterContext->GetProjTransformation(aProjMatrix); | |
898 | glLoadMatrixf((GLfloat*) aProjMatrix); | |
899 | } | |
900 | else | |
901 | #endif | |
902 | glLoadIdentity(); | |
903 | ||
904 | glMultMatrixf( (const GLfloat *) myMappingMatrix ); | |
905 | ||
906 | // Add translation necessary for the environnement mapping | |
907 | if (mySurfaceDetail != Visual3d_TOD_NONE) | |
908 | { | |
909 | // OCC280: FitAll work incorrect for perspective view if the SurfaceDetail mode is V3d_TEX_ENVIRONMENT or V3d_TEX_ALL | |
910 | // const GLfloat dep = vptr->vrep.extra.map.fpd * 0.5F; | |
911 | const GLfloat dep = (myExtra.map.fpd + myExtra.map.bpd) * 0.5F; | |
912 | glTranslatef(-dep*myExtra.vpn[0],-dep*myExtra.vpn[1],-dep*myExtra.vpn[2]); | |
913 | } | |
914 | ||
915 | // Apply matrix | |
916 | AWorkspace->SetViewMatrix((const OpenGl_Matrix *)myOrientationMatrix); | |
917 | ||
918 | /* | |
919 | While drawing after a clipplane has been defined and enabled, each vertex | |
920 | is transformed to eye-coordinates, where it is dotted with the transformed | |
921 | clipping plane equation. Eye-coordinate vertexes whose dot product with | |
922 | the transformed clipping plane equation is positive or zero are in, and | |
923 | require no clipping. Those eye-coordinate vertexes whose dot product is | |
924 | negative are clipped. Because clipplane clipping is done in eye- | |
925 | coordinates, changes to the projection matrix have no effect on its | |
926 | operation. | |
927 | ||
928 | A point and a normal are converted to a plane equation in the following manner: | |
929 | ||
930 | point = [Px,Py,Pz] | |
931 | ||
932 | normal = |Nx| | |
933 | |Ny| | |
934 | |Nz| | |
935 | ||
936 | plane equation = |A| | |
937 | |B| | |
938 | |C| | |
939 | |D| | |
940 | A = Nx | |
941 | B = Ny | |
942 | C = Nz | |
943 | D = -[Px,Py,Pz] dot |Nx| | |
944 | |Ny| | |
945 | |Nz| | |
946 | ||
947 | */ | |
948 | ||
c320e557 | 949 | glPushAttrib( GL_FOG_BIT | GL_LIGHTING_BIT | GL_ENABLE_BIT ); |
2166f0fa SK |
950 | |
951 | // Apply Fog | |
952 | if ( myFog.IsOn ) | |
953 | { | |
954 | const GLfloat ramp = myExtra.map.fpd - myExtra.map.bpd; | |
955 | const GLfloat fog_start = myFog.Front * ramp - myExtra.map.fpd; | |
956 | const GLfloat fog_end = myFog.Back * ramp - myExtra.map.fpd; | |
957 | ||
958 | glFogi(GL_FOG_MODE, GL_LINEAR); | |
959 | glFogf(GL_FOG_START, fog_start); | |
960 | glFogf(GL_FOG_END, fog_end); | |
961 | glFogfv(GL_FOG_COLOR, myFog.Color.rgb); | |
962 | glEnable(GL_FOG); | |
963 | } | |
964 | else | |
965 | glDisable(GL_FOG); | |
966 | ||
967 | // Apply Lights | |
968 | { | |
969 | int i; | |
970 | ||
971 | // Switch off all lights | |
972 | for (i = GL_LIGHT0; i <= GL_LIGHT7; i++) | |
973 | glDisable(i); | |
974 | glLightModelfv(GL_LIGHT_MODEL_AMBIENT, default_amb); | |
975 | ||
976 | /* set les lights */ | |
977 | int gl_lid = GL_LIGHT0; | |
978 | OpenGl_ListOfLight::Iterator itl(myLights); | |
979 | for (; itl.More(); itl.Next()) | |
980 | { | |
981 | const OpenGl_Light &alight = itl.Value(); | |
982 | bind_light(&alight, &gl_lid); | |
983 | } | |
984 | ||
985 | if (gl_lid != GL_LIGHT0) glEnable(GL_LIGHTING); | |
986 | } | |
987 | ||
988 | // Apply InteriorShadingMethod | |
989 | glShadeModel( myIntShadingMethod == TEL_SM_FLAT ? GL_FLAT : GL_SMOOTH ); | |
990 | ||
991 | // Apply clipping planes | |
992 | { | |
993 | // Define starting plane id | |
994 | planeid = GL_CLIP_PLANE0; | |
995 | ||
996 | GLdouble equation[4]; | |
997 | ||
998 | if ( myZClip.Back.IsOn || myZClip.Front.IsOn ) | |
999 | { | |
1000 | // Apply front and back clipping planes | |
1001 | GLfloat mat[4][4]; | |
1002 | glMatrixMode( GL_MODELVIEW ); | |
1003 | glGetFloatv( GL_MODELVIEW_MATRIX,(GLfloat *) mat ); | |
1004 | glLoadIdentity(); | |
1005 | ||
1006 | const GLdouble ramp = myExtra.map.fpd - myExtra.map.bpd; | |
1007 | ||
1008 | if ( myZClip.Back.IsOn ) | |
1009 | { | |
1010 | const GLdouble back = ramp * myZClip.Back.Limit + myExtra.map.bpd; | |
1011 | equation[0] = 0.0; /* Nx */ | |
1012 | equation[1] = 0.0; /* Ny */ | |
1013 | equation[2] = 1.0; /* Nz */ | |
1014 | equation[3] = -back; /* P dot N */ | |
1015 | glClipPlane( planeid, equation ); | |
1016 | glEnable( planeid ); | |
1017 | planeid++; | |
1018 | } | |
1019 | ||
1020 | if ( myZClip.Front.IsOn ) | |
1021 | { | |
1022 | const GLdouble front = ramp * myZClip.Front.Limit + myExtra.map.bpd; | |
1023 | equation[0] = 0.0; /* Nx */ | |
1024 | equation[1] = 0.0; /* Ny */ | |
1025 | equation[2] = -1.0; /* Nz */ | |
1026 | equation[3] = front; /* P dot N */ | |
1027 | glClipPlane( planeid, equation ); | |
1028 | glEnable( planeid ); | |
1029 | planeid++; | |
1030 | } | |
1031 | ||
1032 | glLoadMatrixf( (GLfloat *) mat ); | |
1033 | } | |
1034 | ||
1035 | // Apply user clipping planes | |
1036 | NCollection_List<OPENGL_CLIP_REP>::Iterator planeIter(myClippingPlanes); | |
1037 | for ( ; planeIter.More(); planeIter.Next() ) | |
1038 | { | |
1039 | glClipPlane( planeid, planeIter.Value().equation ); | |
1040 | glEnable( planeid ); | |
1041 | planeid++; | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | // Apply AntiAliasing | |
1046 | { | |
1047 | if (myAntiAliasing) | |
1048 | AWorkspace->NamedStatus |= OPENGL_NS_ANTIALIASING; | |
1049 | else | |
1050 | AWorkspace->NamedStatus &= ~OPENGL_NS_ANTIALIASING; | |
1051 | } | |
1052 | ||
1053 | Standard_Boolean isAnimationListOpen = Standard_False; | |
1054 | ||
1055 | // Request for update of animation mode? | |
1056 | if ( (AWorkspace->NamedStatus & OPENGL_NS_UPDATEAM) != 0 ) | |
1057 | { | |
1058 | // Request to rebuild display list | |
1059 | myAnimationListReady = Standard_False; | |
1060 | // Reset request for update of animation mode | |
1061 | AWorkspace->NamedStatus &= ~OPENGL_NS_UPDATEAM; | |
1062 | } | |
1063 | ||
1064 | // Is in animation mode? | |
1065 | if ( AWorkspace->NamedStatus & OPENGL_NS_ANIMATION ) | |
1066 | { | |
1067 | // Is the animation list ready? | |
1068 | if (myAnimationListReady) | |
1069 | { | |
1070 | // Execute the animation list | |
1071 | glCallList(myAnimationListIndex); | |
1072 | } | |
1073 | else | |
1074 | { | |
1075 | // Update the animation list | |
1076 | if ( AWorkspace->NamedStatus & OPENGL_NS_FLIST ) | |
1077 | { | |
1078 | if (myAnimationListIndex == 0) | |
1079 | myAnimationListIndex = glGenLists(1); | |
1080 | ||
1081 | if (myAnimationListIndex != 0) | |
1082 | { | |
1083 | glNewList(myAnimationListIndex, GL_COMPILE_AND_EXECUTE); | |
1084 | isAnimationListOpen = Standard_True; | |
1085 | } | |
1086 | } | |
1087 | else | |
1088 | AWorkspace->NamedStatus |= OPENGL_NS_FLIST; | |
1089 | } | |
1090 | } | |
1091 | else | |
1092 | myAnimationListReady = Standard_False; | |
1093 | ||
1094 | if (!myAnimationListReady) | |
1095 | { | |
1096 | // Clear status bitfields | |
1097 | AWorkspace->NamedStatus &= ~(OPENGL_NS_2NDPASSNEED | OPENGL_NS_2NDPASSDO); | |
1098 | ||
1099 | // Added PCT for handling of textures | |
1100 | switch (mySurfaceDetail) | |
1101 | { | |
1102 | case Visual3d_TOD_NONE: | |
1103 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1104 | DisableTexture(); | |
1105 | // Render the view | |
1106 | RenderStructs(AWorkspace); | |
1107 | break; | |
1108 | ||
1109 | case Visual3d_TOD_ENVIRONMENT: | |
1110 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1111 | SetCurrentTexture(myTextureEnv); | |
1112 | EnableTexture(); | |
1113 | // Render the view | |
1114 | RenderStructs(AWorkspace); | |
1115 | DisableTexture(); | |
1116 | break; | |
1117 | ||
1118 | case Visual3d_TOD_ALL: | |
1119 | // First pass | |
1120 | AWorkspace->NamedStatus &= ~OPENGL_NS_FORBIDSETTEX; | |
1121 | // Render the view | |
1122 | RenderStructs(AWorkspace); | |
1123 | DisableTexture(); | |
1124 | ||
1125 | // Second pass | |
1126 | if (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) | |
1127 | { | |
1128 | AWorkspace->NamedStatus |= OPENGL_NS_2NDPASSDO; | |
1129 | SetCurrentTexture(myTextureEnv); | |
1130 | EnableTexture(); | |
1131 | ||
1132 | /* sauvegarde de quelques parametres OpenGL */ | |
1133 | GLint blend_dst, blend_src; | |
1134 | GLint zbuff_f; | |
1135 | GLboolean zbuff_w; | |
1136 | glGetBooleanv(GL_DEPTH_WRITEMASK, &zbuff_w); | |
1137 | glGetIntegerv(GL_DEPTH_FUNC, &zbuff_f); | |
1138 | glGetIntegerv(GL_BLEND_DST, &blend_dst); | |
1139 | glGetIntegerv(GL_BLEND_SRC, &blend_src); | |
1140 | GLboolean zbuff_state = glIsEnabled(GL_DEPTH_TEST); | |
1141 | GLboolean blend_state = glIsEnabled(GL_BLEND); | |
1142 | ||
1143 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
1144 | glEnable(GL_BLEND); | |
1145 | ||
1146 | glDepthFunc(GL_EQUAL); | |
1147 | glDepthMask(GL_FALSE); | |
1148 | glEnable(GL_DEPTH_TEST); | |
1149 | ||
1150 | AWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1151 | ||
1152 | // Render the view | |
1153 | RenderStructs(AWorkspace); | |
1154 | DisableTexture(); | |
1155 | ||
1156 | /* restauration des parametres OpenGL */ | |
1157 | glBlendFunc(blend_src, blend_dst); | |
1158 | if (!blend_state) glDisable(GL_BLEND); | |
1159 | ||
1160 | glDepthFunc(zbuff_f); | |
1161 | glDepthMask(zbuff_w); | |
1162 | if (!zbuff_state) glDisable(GL_DEPTH_FUNC); | |
1163 | } | |
1164 | break; | |
1165 | } | |
1166 | ||
1167 | if (isAnimationListOpen) | |
1168 | { | |
1169 | glEndList(); | |
1170 | myAnimationListReady = Standard_True; | |
1171 | } | |
1172 | } | |
1173 | ||
1174 | /* restore previous graphics context; before update lights */ | |
1175 | //TsmPopAttri(); | |
1176 | ||
1177 | // Disable current clipping planes | |
1178 | for ( planeid = GL_CLIP_PLANE0; planeid < lastid; planeid++ ) | |
1179 | glDisable( planeid ); | |
1180 | ||
1181 | /* affichage de Triedre Non Zoomable de la vue s'il existe */ | |
1182 | if (!myTrihedron.IsNull()) | |
1183 | myTrihedron->Render(AWorkspace); | |
1184 | if (!myGraduatedTrihedron.IsNull()) | |
1185 | myGraduatedTrihedron->Render(AWorkspace); | |
1186 | ||
c320e557 | 1187 | glPopAttrib(); // GL_FOG_BIT | GL_LIGHTING_BIT | GL_ENABLE_BIT |
2166f0fa SK |
1188 | |
1189 | // Restore face culling | |
1190 | if ( myBackfacing ) | |
1191 | { | |
1192 | if ( isCullFace ) | |
1193 | { | |
1194 | glEnable ( GL_CULL_FACE ); | |
1195 | glCullFace ( GL_BACK ); | |
1196 | } | |
1197 | else | |
1198 | glDisable ( GL_CULL_FACE ); | |
1199 | } | |
1200 | ||
1201 | ///////////////////////////////////////////////////////////////////////////// | |
1202 | // Step 6: Draw overlayer | |
1203 | // Redrawing to bitmap or window? | |
1204 | const int amode = (AWorkspace->NamedStatus & OPENGL_NS_ISBITMAP)? OCC_REDRAW_BITMAP : OCC_REDRAW_WINDOW; | |
1205 | ||
1206 | AWorkspace->DisplayCallback(ACView,(amode | OCC_PRE_OVERLAY)); | |
1207 | ||
1208 | RedrawLayer2d(AWorkspace, ACView, ACOverLayer); | |
1209 | ||
1210 | AWorkspace->DisplayCallback(ACView,amode); | |
1211 | ||
1212 | // Restore clipping planes | |
1213 | for ( ptrPlane = oldPlanes, planeid = GL_CLIP_PLANE0; planeid < lastid; planeid++, ptrPlane++ ) | |
1214 | { | |
1215 | glClipPlane( planeid, ptrPlane->Equation ); | |
1216 | if ( ptrPlane->isEnabled ) | |
1217 | glEnable( planeid ); | |
1218 | else | |
1219 | glDisable( planeid ); | |
1220 | } | |
1221 | delete[] oldPlanes; | |
1222 | } | |
1223 | ||
1224 | /*----------------------------------------------------------------------*/ | |
1225 | ||
1226 | //ExecuteViewDisplay | |
1227 | void OpenGl_View::RenderStructs (const Handle(OpenGl_Workspace) &AWorkspace) | |
1228 | { | |
1229 | if ( myStructures.NbStructures() <= 0 ) return; | |
1230 | ||
1231 | glPushAttrib ( GL_DEPTH_BUFFER_BIT ); | |
1232 | ||
1233 | const OpenGl_AspectLine *aspect_line = AWorkspace->AspectLine( Standard_True ); | |
1234 | ||
1235 | //TsmPushAttri(); /* save previous graphics context */ | |
1236 | ||
1237 | if ( (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) == 0 ) | |
1238 | { | |
1239 | const int antiAliasingMode = AWorkspace->GetDisplay()->AntiAliasingMode(); | |
1240 | ||
1241 | if ( !myAntiAliasing ) | |
1242 | { | |
1243 | glDisable(GL_POINT_SMOOTH); | |
1244 | glDisable(GL_LINE_SMOOTH); | |
1245 | if( antiAliasingMode & 2 ) glDisable(GL_POLYGON_SMOOTH); | |
1246 | glBlendFunc (GL_ONE, GL_ZERO); | |
1247 | glDisable (GL_BLEND); | |
1248 | } | |
1249 | else | |
1250 | { | |
1251 | glEnable(GL_POINT_SMOOTH); | |
1252 | glEnable(GL_LINE_SMOOTH); | |
1253 | if( antiAliasingMode & 2 ) glEnable(GL_POLYGON_SMOOTH); | |
1254 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
1255 | glEnable (GL_BLEND); | |
1256 | } | |
1257 | } | |
1258 | ||
1259 | myStructures.Render(AWorkspace); | |
1260 | ||
1261 | //TsmPopAttri(); /* restore previous graphics context; before update lights */ | |
1262 | ||
1263 | if ( AWorkspace->DegenerateModel > 1 ) | |
1264 | { | |
1265 | glLineWidth ( aspect_line->Width() ); | |
1266 | if ( aspect_line->Type() != Aspect_TOL_SOLID ) glEnable ( GL_LINE_STIPPLE ); | |
1267 | } | |
1268 | ||
1269 | glPopAttrib (); | |
1270 | } | |
1271 | ||
1272 | /*----------------------------------------------------------------------*/ | |
1273 | ||
1274 | //call_togl_redraw_layer2d | |
1275 | void OpenGl_View::RedrawLayer2d (const Handle(OpenGl_Workspace) &AWorkspace, const Graphic3d_CView& ACView, const Aspect_CLayer2d& ACLayer) | |
1276 | { | |
1277 | if (&ACLayer == NULL | |
1278 | || ACLayer.ptrLayer == NULL | |
1279 | || ACLayer.ptrLayer->listIndex == 0) return; | |
1280 | ||
1281 | GLsizei dispWidth, dispHeight; | |
1282 | if ( ACView.DefBitmap.bitmap ) { | |
1283 | dispWidth = ACView.DefBitmap.width; | |
1284 | dispHeight = ACView.DefBitmap.height; | |
1285 | } | |
1286 | else { | |
1287 | dispWidth = (GLsizei) ACLayer.viewport[0]; | |
1288 | dispHeight = (GLsizei) ACLayer.viewport[1]; | |
1289 | } | |
1290 | ||
1291 | const GLboolean isl = glIsEnabled(GL_LIGHTING); /*OCC6247*/ | |
1292 | if (isl) | |
1293 | glDisable(GL_LIGHTING); /*OCC6247*/ | |
1294 | ||
1295 | /* | |
1296 | * On positionne la projection | |
1297 | */ | |
1298 | glMatrixMode( GL_MODELVIEW ); | |
1299 | glPushMatrix (); | |
1300 | glLoadIdentity (); | |
1301 | ||
1302 | glMatrixMode (GL_PROJECTION); | |
1303 | glPushMatrix (); | |
1304 | glLoadIdentity (); | |
1305 | ||
1306 | if (!ACLayer.sizeDependent) | |
1307 | glViewport (0, 0, dispWidth, dispHeight); | |
1308 | ||
1309 | float left = ACLayer.ortho[0]; | |
1310 | float right = ACLayer.ortho[1]; | |
1311 | float bottom = ACLayer.ortho[2]; | |
1312 | float top = ACLayer.ortho[3]; | |
1313 | ||
1314 | int attach = ACLayer.attach; | |
1315 | ||
1316 | float ratio; | |
1317 | if (!ACLayer.sizeDependent) | |
1318 | ratio = (float) dispWidth/dispHeight; | |
1319 | else | |
1320 | ratio = ACView.DefWindow.dx/ACView.DefWindow.dy; | |
1321 | ||
1322 | float delta; | |
1323 | if (ratio >= 1.0) { /* fenetre horizontale */ | |
1324 | delta = (float )((top - bottom)/2.0); | |
1325 | switch (attach) { | |
1326 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
1327 | top = bottom + 2*delta/ratio; | |
1328 | break; | |
1329 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
1330 | top = bottom + 2*delta/ratio; | |
1331 | break; | |
1332 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
1333 | bottom = top - 2*delta/ratio; | |
1334 | break; | |
1335 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
1336 | bottom = top - 2*delta/ratio; | |
1337 | break; | |
1338 | } | |
1339 | } | |
1340 | else { /* fenetre verticale */ | |
1341 | delta = (float )((right - left)/2.0); | |
1342 | switch (attach) { | |
1343 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
1344 | right = left + 2*delta*ratio; | |
1345 | break; | |
1346 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
1347 | left = right - 2*delta*ratio; | |
1348 | break; | |
1349 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
1350 | right = left + 2*delta*ratio; | |
1351 | break; | |
1352 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
1353 | left = right - 2*delta*ratio; | |
1354 | break; | |
1355 | } | |
1356 | } | |
1357 | ||
1358 | #ifdef WNT | |
1359 | // Check printer context that exists only for print operation | |
1360 | OpenGl_PrinterContext* aPrinterContext = OpenGl_PrinterContext::GetPrinterContext (AWorkspace->GetGContext()); | |
1361 | ||
1362 | if (aPrinterContext) | |
1363 | { | |
1364 | // additional transformation matrix could be applied to | |
1365 | // render only those parts of viewport that will be | |
1366 | // passed to a printer as a current "frame" to provide | |
1367 | // tiling; scaling of graphics by matrix helps render a | |
1368 | // part of a view (frame) in same viewport, but with higher | |
1369 | // resolution | |
1370 | GLfloat aProjMatrix[16]; | |
1371 | aPrinterContext->GetProjTransformation (aProjMatrix); | |
1372 | glLoadMatrixf ((GLfloat*) aProjMatrix); | |
1373 | ||
1374 | // printing operation also assumes other viewport dimension | |
1375 | // to comply with transformation matrix or graphics scaling | |
1376 | // factors for tiling for layer redraw | |
1377 | GLsizei anViewportX = 0; | |
1378 | GLsizei anViewportY = 0; | |
1379 | aPrinterContext->GetLayerViewport (anViewportX, anViewportY); | |
1380 | if (anViewportX != 0 && anViewportY != 0) | |
1381 | glViewport (0, 0, anViewportX, anViewportY); | |
1382 | } | |
1383 | #endif | |
1384 | ||
1385 | glOrtho (left, right, bottom, top, -1.0, 1.0); | |
1386 | ||
1387 | /* | |
1388 | * On trace la display-list associee au layer. | |
1389 | */ | |
1390 | glPushAttrib ( | |
1391 | GL_LIGHTING_BIT | GL_LINE_BIT | GL_POLYGON_BIT | | |
1392 | GL_DEPTH_BUFFER_BIT | GL_CURRENT_BIT | GL_TEXTURE_BIT ); | |
1393 | glDisable (GL_DEPTH_TEST); | |
1394 | glCallList (ACLayer.ptrLayer->listIndex); | |
1395 | ||
1396 | //calling dynamic render of LayerItems | |
1397 | if ( ACLayer.ptrLayer->layerData ) | |
1398 | { | |
1399 | InitLayerProp(ACLayer.ptrLayer->listIndex); | |
1400 | ((Visual3d_Layer*)ACLayer.ptrLayer->layerData)->RenderLayerItems(); | |
1401 | InitLayerProp(0); | |
1402 | } | |
1403 | ||
1404 | glPopAttrib (); | |
1405 | ||
1406 | /* | |
1407 | * On retire la projection | |
1408 | */ | |
1409 | glMatrixMode (GL_PROJECTION); | |
1410 | glPopMatrix (); | |
1411 | ||
1412 | glMatrixMode( GL_MODELVIEW ); | |
1413 | glPopMatrix (); | |
1414 | ||
1415 | /* | |
1416 | * Restauration du Viewport en cas de modification | |
1417 | */ | |
1418 | if (!ACLayer.sizeDependent) | |
1419 | glViewport (0, 0, (GLsizei) ACView.DefWindow.dx, (GLsizei) ACView.DefWindow.dy); | |
1420 | ||
1421 | glFlush (); | |
1422 | ||
1423 | if (isl) | |
1424 | glEnable(GL_LIGHTING); /*OCC6247*/ | |
1425 | } | |
1426 | ||
1427 | /*----------------------------------------------------------------------*/ | |
1428 | ||
1429 | //call_togl_create_bg_texture | |
1430 | void OpenGl_View::CreateBackgroundTexture (const Standard_CString AFileName, const Aspect_FillMethod AFillStyle) | |
1431 | { | |
1432 | // Delete existing texture | |
1433 | if ( myBgTexture.TexId != 0 ) | |
1434 | { | |
1435 | glDeleteTextures( 1, (GLuint*)&(myBgTexture.TexId) ); | |
1436 | myBgTexture.TexId = 0; | |
1437 | } | |
1438 | ||
1439 | Standard_Integer width, height; | |
1440 | Handle(Image_Image) image; | |
1441 | if ( AlienImage::LoadImageFile( AFileName, image, width, height ) ) | |
1442 | { | |
1443 | const int nbbytes = width * height * 3; | |
1444 | GLubyte *data = new GLubyte[nbbytes]; | |
1445 | GLubyte *pdata = data; | |
1446 | Standard_Integer i, j; | |
1447 | for ( j = height - 1; j >= 0; j-- ) | |
1448 | for ( i = 0; i < width; i++ ) | |
1449 | { | |
1450 | const Quantity_Color &color = image->PixelColor( i, j ); | |
1451 | *pdata++ = (GLubyte)( 255 * color.Red() ); | |
1452 | *pdata++ = (GLubyte)( 255 * color.Green() ); | |
1453 | *pdata++ = (GLubyte)( 255 * color.Blue() ); | |
1454 | } | |
1455 | ||
1456 | GLuint texture = 0; | |
1457 | glGenTextures( 1, &texture ); | |
1458 | glBindTexture( GL_TEXTURE_2D, texture ); | |
1459 | ||
1460 | /* Create MipMapped Texture */ | |
1461 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); | |
1462 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT ); | |
1463 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); | |
1464 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); | |
1465 | ||
1466 | gluBuild2DMipmaps( GL_TEXTURE_2D, 3/*4*/, width, height, GL_RGB, GL_UNSIGNED_BYTE, data ); | |
1467 | ||
1468 | delete[] data; | |
1469 | ||
1470 | myBgTexture.TexId = texture; | |
1471 | myBgTexture.Width = width; | |
1472 | myBgTexture.Height = height; | |
1473 | switch ( AFillStyle ) | |
1474 | { | |
1475 | case Aspect_FM_NONE : | |
1476 | myBgTexture.Style = Aspect_FM_CENTERED; | |
1477 | break; | |
1478 | default : | |
1479 | myBgTexture.Style = AFillStyle; | |
1480 | break; | |
1481 | } | |
1482 | } | |
1483 | } | |
1484 | ||
1485 | /*----------------------------------------------------------------------*/ | |
1486 | ||
1487 | //call_togl_set_bg_texture_style | |
1488 | void OpenGl_View::SetBackgroundTextureStyle (const Aspect_FillMethod AFillStyle) | |
1489 | { | |
1490 | /* check if background texture is already created */ | |
1491 | if ( myBgTexture.TexId != 0 ) | |
1492 | { | |
1493 | switch ( AFillStyle ) | |
1494 | { | |
1495 | case Aspect_FM_NONE : | |
1496 | myBgTexture.Style = Aspect_FM_CENTERED; | |
1497 | break; | |
1498 | default : | |
1499 | myBgTexture.Style = AFillStyle; | |
1500 | break; | |
1501 | } | |
1502 | } | |
1503 | } | |
1504 | ||
1505 | /*----------------------------------------------------------------------*/ | |
1506 | ||
1507 | //call_togl_gradient_background | |
1508 | void OpenGl_View::SetBackgroundGradient (const Quantity_Color& AColor1, | |
1509 | const Quantity_Color& AColor2, | |
1510 | const Aspect_GradientFillMethod AType) | |
1511 | { | |
1512 | Standard_Real R,G,B; | |
1513 | AColor1.Values( R, G, B, Quantity_TOC_RGB ); | |
1514 | myBgGradient.color1.rgb[0] = ( Tfloat )R; | |
1515 | myBgGradient.color1.rgb[1] = ( Tfloat )G; | |
1516 | myBgGradient.color1.rgb[2] = ( Tfloat )B; | |
1517 | myBgGradient.color1.rgb[3] = 0.F; | |
1518 | ||
1519 | AColor2.Values( R, G, B, Quantity_TOC_RGB ); | |
1520 | myBgGradient.color2.rgb[0] = ( Tfloat )R; | |
1521 | myBgGradient.color2.rgb[1] = ( Tfloat )G; | |
1522 | myBgGradient.color2.rgb[2] = ( Tfloat )B; | |
1523 | myBgGradient.color2.rgb[3] = 0.F; | |
1524 | ||
1525 | myBgGradient.type = AType; | |
1526 | } | |
1527 | ||
1528 | /*----------------------------------------------------------------------*/ | |
1529 | ||
1530 | //call_togl_set_gradient_type | |
1531 | void OpenGl_View::SetBackgroundGradientType (const Aspect_GradientFillMethod AType) | |
1532 | { | |
1533 | // check if gradient background is already created | |
1534 | if ( myBgGradient.type != Aspect_GFM_NONE ) | |
1535 | myBgGradient.type = AType; | |
1536 | } | |
1537 | ||
1538 | /*----------------------------------------------------------------------*/ |