| 1 |
gwlarson |
3.1 |
/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
| 2 |
|
|
|
| 3 |
|
|
#ifndef lint |
| 4 |
|
|
static char SCCSid[] = "$SunId$ SGI"; |
| 5 |
|
|
#endif |
| 6 |
|
|
|
| 7 |
|
|
/* |
| 8 |
|
|
* sm_ogl.c |
| 9 |
|
|
*/ |
| 10 |
|
|
#include "standard.h" |
| 11 |
|
|
|
| 12 |
|
|
#include <GL/gl.h> |
| 13 |
|
|
|
| 14 |
|
|
#ifdef TEST_DRIVER |
| 15 |
|
|
#include <gl/device.h> |
| 16 |
|
|
#include <GL/glu.h> |
| 17 |
|
|
#include <glut.h> |
| 18 |
|
|
#endif |
| 19 |
|
|
#include "object.h" |
| 20 |
|
|
#include "sm_geom.h" |
| 21 |
|
|
#include "sm.h" |
| 22 |
|
|
|
| 23 |
|
|
#ifdef TEST_DRIVER |
| 24 |
|
|
#include "sm_draw.h" |
| 25 |
|
|
/*static char smClean_notify = TRUE; |
| 26 |
|
|
MAKE STATIC LATER: ui.c using for now; |
| 27 |
|
|
*/ |
| 28 |
|
|
char smClean_notify = TRUE; |
| 29 |
|
|
#else |
| 30 |
|
|
static char smClean_notify = TRUE; |
| 31 |
|
|
#endif |
| 32 |
|
|
|
| 33 |
|
|
int |
| 34 |
|
|
mark_active_tris(qtptr,arg) |
| 35 |
|
|
QUADTREE *qtptr; |
| 36 |
|
|
char *arg; |
| 37 |
|
|
{ |
| 38 |
|
|
OBJECT os[MAXSET+1],*optr; |
| 39 |
|
|
int i,t_id; |
| 40 |
|
|
SM *sm; |
| 41 |
|
|
|
| 42 |
|
|
|
| 43 |
|
|
sm = (SM *)arg; |
| 44 |
|
|
|
| 45 |
|
|
/* For each triangle in the set, set the which flag*/ |
| 46 |
|
|
if(QT_IS_EMPTY(*qtptr)) |
| 47 |
|
|
{ |
| 48 |
|
|
return(FALSE); |
| 49 |
|
|
} |
| 50 |
|
|
else |
| 51 |
|
|
{ |
| 52 |
|
|
qtgetset(os,*qtptr); |
| 53 |
|
|
|
| 54 |
|
|
for (i = QT_SET_CNT(os),optr = QT_SET_PTR(os); i > 0; i--) |
| 55 |
|
|
{ |
| 56 |
|
|
t_id = QT_SET_NEXT_ELEM(optr); |
| 57 |
|
|
/* Set the render flag */ |
| 58 |
|
|
if(SM_IS_NTH_T_BASE(sm,t_id)) |
| 59 |
|
|
continue; |
| 60 |
|
|
SM_SET_NTH_T_ACTIVE(sm,t_id); |
| 61 |
|
|
/* FOR NOW:Also set the LRU clock bit: MAY WANT TO CHANGE: */ |
| 62 |
|
|
SM_SET_NTH_T_LRU(sm,t_id); |
| 63 |
|
|
} |
| 64 |
|
|
} |
| 65 |
|
|
return(TRUE); |
| 66 |
|
|
} |
| 67 |
|
|
|
| 68 |
|
|
|
| 69 |
|
|
smMark_tris_in_frustum(sm,vp) |
| 70 |
|
|
SM *sm; |
| 71 |
|
|
VIEW *vp; |
| 72 |
|
|
{ |
| 73 |
|
|
FVECT nr[4],far[4]; |
| 74 |
|
|
|
| 75 |
|
|
/* Mark triangles in approx. view frustum as being active:set |
| 76 |
|
|
LRU counter: for use in discarding samples when out |
| 77 |
|
|
of space |
| 78 |
|
|
Radiance often has no far clipping plane: but driver will set |
| 79 |
|
|
dev_zmin,dev_zmax to satisfy OGL |
| 80 |
|
|
*/ |
| 81 |
|
|
|
| 82 |
|
|
/* First clear all the triangle active flags */ |
| 83 |
|
|
smClear_flags(sm,T_ACTIVE_FLAG); |
| 84 |
|
|
|
| 85 |
|
|
/* calculate the world space coordinates of the view frustum */ |
| 86 |
|
|
calculate_view_frustum(vp->vp,vp->hvec,vp->vvec,vp->horiz,vp->vert, |
| 87 |
|
|
dev_zmin,dev_zmax,nr,far); |
| 88 |
|
|
|
| 89 |
|
|
/* Project the view frustum onto the spherical quadtree */ |
| 90 |
|
|
/* For every cell intersected by the projection of the faces |
| 91 |
|
|
of the frustum: mark all triangles in the cell as ACTIVE- |
| 92 |
|
|
Also set the triangles LRU clock counter |
| 93 |
|
|
*/ |
| 94 |
|
|
/* Need to do tonemap call */ |
| 95 |
|
|
/* Near face triangles */ |
| 96 |
|
|
smLocator_apply_func(sm,nr[0],nr[2],nr[3],mark_active_tris,(char *)(sm)); |
| 97 |
|
|
smLocator_apply_func(sm,nr[2],nr[0],nr[1],mark_active_tris,(char *)(sm)); |
| 98 |
|
|
/* Right face triangles */ |
| 99 |
|
|
smLocator_apply_func(sm,nr[0],far[3],far[0],mark_active_tris,(char *)(sm)); |
| 100 |
|
|
smLocator_apply_func(sm,far[3],nr[0],nr[3],mark_active_tris,(char *)(sm)); |
| 101 |
|
|
/* Left face triangles */ |
| 102 |
|
|
smLocator_apply_func(sm,nr[1],far[2],nr[2],mark_active_tris,(char *)(sm)); |
| 103 |
|
|
smLocator_apply_func(sm,far[2],nr[1],far[1],mark_active_tris,(char *)(sm)); |
| 104 |
|
|
/* Top face triangles */ |
| 105 |
|
|
smLocator_apply_func(sm,nr[0],far[0],nr[1],mark_active_tris,(char *)(sm)); |
| 106 |
|
|
smLocator_apply_func(sm,nr[1],far[0],far[1],mark_active_tris,(char *)(sm)); |
| 107 |
|
|
/* Bottom face triangles */ |
| 108 |
|
|
smLocator_apply_func(sm,nr[3],nr[2],far[3],mark_active_tris,(char *)(sm)); |
| 109 |
|
|
smLocator_apply_func(sm,nr[2],far[2],far[3],mark_active_tris,(char *)(sm)); |
| 110 |
|
|
/* Far face triangles */ |
| 111 |
|
|
smLocator_apply_func(sm,far[0],far[2],far[1],mark_active_tris,(char *)(sm)); |
| 112 |
|
|
smLocator_apply_func(sm,far[2],far[0],far[3],mark_active_tris,(char *)(sm)); |
| 113 |
|
|
|
| 114 |
|
|
#ifdef TEST_DRIVER |
| 115 |
|
|
VCOPY(FrustumFar[0],far[0]); |
| 116 |
|
|
VCOPY(FrustumFar[1],far[1]); |
| 117 |
|
|
VCOPY(FrustumFar[2],far[2]); |
| 118 |
|
|
VCOPY(FrustumFar[3],far[3]); |
| 119 |
|
|
VCOPY(FrustumNear[0],nr[0]); |
| 120 |
|
|
VCOPY(FrustumNear[1],nr[1]); |
| 121 |
|
|
VCOPY(FrustumNear[2],nr[2]); |
| 122 |
|
|
VCOPY(FrustumNear[3],nr[3]); |
| 123 |
|
|
#endif |
| 124 |
|
|
} |
| 125 |
|
|
|
| 126 |
|
|
/* |
| 127 |
|
|
* smClean() : display has been wiped clean |
| 128 |
|
|
* |
| 129 |
|
|
* Called after display has been effectively cleared, meaning that all |
| 130 |
|
|
* geometry must be resent down the pipeline in the next call to smUpdate(). |
| 131 |
|
|
*/ |
| 132 |
|
|
smClean() |
| 133 |
|
|
{ |
| 134 |
|
|
/* Mark all triangles in the frustum as active */ |
| 135 |
|
|
if(!smMesh || SM_NUM_TRIS(smMesh)==0) |
| 136 |
|
|
return; |
| 137 |
|
|
|
| 138 |
|
|
#ifdef TEST_DRIVER |
| 139 |
|
|
smMark_tris_in_frustum(smMesh,&Current_View); |
| 140 |
|
|
#else |
| 141 |
|
|
smMark_tris_in_frustum(smMesh,&(odev.v)); |
| 142 |
|
|
#endif |
| 143 |
|
|
smClean_notify = TRUE; |
| 144 |
|
|
} |
| 145 |
|
|
|
| 146 |
|
|
|
| 147 |
|
|
smRender_tri(sm,i,vp) |
| 148 |
|
|
SM *sm; |
| 149 |
|
|
int i; |
| 150 |
|
|
FVECT vp; |
| 151 |
|
|
{ |
| 152 |
|
|
TRI *tri; |
| 153 |
|
|
double ptr[3]; |
| 154 |
|
|
int j; |
| 155 |
|
|
|
| 156 |
|
|
tri = SM_NTH_TRI(sm,i); |
| 157 |
|
|
SM_CLEAR_NTH_T_NEW(sm,i); |
| 158 |
|
|
if(smNew_tri_cnt) |
| 159 |
|
|
smNew_tri_cnt--; |
| 160 |
|
|
/* NOTE:Triangles are defined clockwise:historical relative to spherical |
| 161 |
|
|
tris: could change |
| 162 |
|
|
*/ |
| 163 |
|
|
for(j=2; j>= 0; j--) |
| 164 |
|
|
{ |
| 165 |
gwlarson |
3.2 |
#ifdef DEBUG |
| 166 |
|
|
if(SM_BG_SAMPLE(sm,T_NTH_V(tri,j))) |
| 167 |
|
|
eputs("SmRenderTri(): shouldnt have bg samples\n"); |
| 168 |
|
|
#endif |
| 169 |
gwlarson |
3.1 |
glColor3ub(SM_NTH_RGB(sm,T_NTH_V(tri,j))[0], |
| 170 |
|
|
SM_NTH_RGB(sm,T_NTH_V(tri,j))[1], |
| 171 |
|
|
SM_NTH_RGB(sm,T_NTH_V(tri,j))[2]); |
| 172 |
|
|
VCOPY(ptr,SM_T_NTH_WV(sm,tri,j)); |
| 173 |
|
|
glVertex3d(ptr[0],ptr[1],ptr[2]); |
| 174 |
|
|
} |
| 175 |
|
|
} |
| 176 |
|
|
|
| 177 |
|
|
/* NOTE SEEMS BAD TO PENALIZE POLYGONS INFRONT BY LETTING |
| 178 |
|
|
ADJACENT TRIANGLES TO BG be BG |
| 179 |
|
|
*/ |
| 180 |
gwlarson |
3.2 |
smRender_bg_tri(sm,i,vp,d) |
| 181 |
gwlarson |
3.1 |
SM *sm; |
| 182 |
|
|
int i; |
| 183 |
|
|
FVECT vp; |
| 184 |
gwlarson |
3.2 |
double d; |
| 185 |
gwlarson |
3.1 |
{ |
| 186 |
|
|
TRI *tri; |
| 187 |
|
|
FVECT p; |
| 188 |
|
|
int j,ids[3],cnt; |
| 189 |
gwlarson |
3.2 |
int rgb[3]; |
| 190 |
gwlarson |
3.1 |
|
| 191 |
gwlarson |
3.2 |
|
| 192 |
gwlarson |
3.1 |
tri = SM_NTH_TRI(sm,i); |
| 193 |
|
|
SM_CLEAR_NTH_T_NEW(sm,i); |
| 194 |
|
|
if(smNew_tri_cnt) |
| 195 |
|
|
smNew_tri_cnt--; |
| 196 |
|
|
/* NOTE:Triangles are defined clockwise:historical relative to spherical |
| 197 |
|
|
tris: could change |
| 198 |
|
|
*/ |
| 199 |
|
|
cnt = 0; |
| 200 |
|
|
rgb[0] = rgb[1] = rgb[2] = 0; |
| 201 |
|
|
for(j=0;j<3;j++) |
| 202 |
|
|
{ |
| 203 |
|
|
ids[j] = T_NTH_V(tri,j); |
| 204 |
|
|
if(SM_BG_SAMPLE(sm,ids[j])) |
| 205 |
|
|
{ |
| 206 |
|
|
rgb[0] += SM_NTH_RGB(sm,ids[j])[0]; |
| 207 |
|
|
rgb[1] += SM_NTH_RGB(sm,ids[j])[1]; |
| 208 |
|
|
rgb[2] += SM_NTH_RGB(sm,ids[j])[2]; |
| 209 |
|
|
cnt++; |
| 210 |
|
|
} |
| 211 |
|
|
} |
| 212 |
|
|
if(cnt) |
| 213 |
|
|
{ |
| 214 |
|
|
rgb[0]/=cnt; rgb[1]/=cnt; rgb[2]/=cnt; |
| 215 |
|
|
} |
| 216 |
|
|
for(j=2; j>= 0; j--) |
| 217 |
|
|
{ |
| 218 |
|
|
if(SM_BG_SAMPLE(sm,ids[j])) |
| 219 |
|
|
glColor3ub(SM_NTH_RGB(sm,ids[j])[0],SM_NTH_RGB(sm,ids[j])[1], |
| 220 |
|
|
SM_NTH_RGB(sm,ids[j])[2]); |
| 221 |
|
|
else |
| 222 |
|
|
glColor3ub(rgb[0],rgb[1],rgb[2]); |
| 223 |
gwlarson |
3.2 |
if(SM_BG_SAMPLE(sm,ids[j])) |
| 224 |
|
|
VSUB(p,SM_NTH_WV(sm,ids[j]),SM_VIEW_CENTER(sm)); |
| 225 |
|
|
else |
| 226 |
|
|
smDir(sm,p,ids[j]); |
| 227 |
|
|
if(dev_zmin > 1.0) |
| 228 |
|
|
{ |
| 229 |
|
|
p[0] *= d; |
| 230 |
|
|
p[1] *= d; |
| 231 |
|
|
p[2] *= d; |
| 232 |
|
|
} |
| 233 |
gwlarson |
3.1 |
VADD(p,p,vp); |
| 234 |
|
|
glVertex3d(p[0],p[1],p[2]); |
| 235 |
|
|
} |
| 236 |
|
|
} |
| 237 |
|
|
|
| 238 |
|
|
smRender_mesh(sm,vp) |
| 239 |
|
|
SM *sm; |
| 240 |
|
|
FVECT vp; |
| 241 |
|
|
{ |
| 242 |
|
|
int i; |
| 243 |
|
|
TRI *tri; |
| 244 |
gwlarson |
3.2 |
double ptr[3],d; |
| 245 |
gwlarson |
3.1 |
int j; |
| 246 |
|
|
|
| 247 |
gwlarson |
3.2 |
d = (dev_zmin+dev_zmax)/2.0; |
| 248 |
gwlarson |
3.1 |
glPushAttrib(GL_DEPTH_BUFFER_BIT); |
| 249 |
|
|
|
| 250 |
|
|
/* First draw background polygons */ |
| 251 |
gwlarson |
3.2 |
|
| 252 |
gwlarson |
3.1 |
glDisable(GL_DEPTH_TEST); |
| 253 |
|
|
glBegin(GL_TRIANGLES); |
| 254 |
|
|
SM_FOR_ALL_ACTIVE_BG_TRIS(sm,i) |
| 255 |
gwlarson |
3.2 |
smRender_bg_tri(sm,i,vp,d); |
| 256 |
gwlarson |
3.1 |
glEnd(); |
| 257 |
|
|
|
| 258 |
|
|
glEnable(GL_DEPTH_TEST); |
| 259 |
|
|
glBegin(GL_TRIANGLES); |
| 260 |
|
|
SM_FOR_ALL_ACTIVE_FG_TRIS(sm,i) |
| 261 |
|
|
smRender_tri(sm,i,vp); |
| 262 |
|
|
glEnd(); |
| 263 |
|
|
|
| 264 |
|
|
glPopAttrib(); |
| 265 |
|
|
} |
| 266 |
|
|
smRender_tri_edges(sm,i) |
| 267 |
|
|
SM *sm; |
| 268 |
|
|
int i; |
| 269 |
|
|
{ |
| 270 |
|
|
TRI *tri; |
| 271 |
|
|
int j; |
| 272 |
|
|
double ptr[3]; |
| 273 |
|
|
|
| 274 |
|
|
|
| 275 |
|
|
tri = SM_NTH_TRI(sm,i); |
| 276 |
|
|
|
| 277 |
|
|
/* Triangles are defined clockwise:historical relative to spherical |
| 278 |
|
|
tris: could change |
| 279 |
|
|
*/ |
| 280 |
|
|
for(j=2; j >=0; j--) |
| 281 |
|
|
{ |
| 282 |
|
|
VCOPY(ptr,SM_NTH_WV(sm,T_NTH_V(tri,j))); |
| 283 |
|
|
glVertex3d(ptr[0],ptr[1],ptr[2]); |
| 284 |
|
|
VCOPY(ptr,SM_NTH_WV(sm,T_NTH_V(tri,(j+1)%3))); |
| 285 |
|
|
glVertex3d(ptr[0],ptr[1],ptr[2]); |
| 286 |
|
|
} |
| 287 |
|
|
} |
| 288 |
|
|
|
| 289 |
|
|
int |
| 290 |
|
|
compare_tri_depths(T_DEPTH *td1,T_DEPTH *td2) |
| 291 |
|
|
{ |
| 292 |
|
|
double d; |
| 293 |
|
|
|
| 294 |
|
|
d = td2->depth-td1->depth; |
| 295 |
|
|
|
| 296 |
|
|
if(d > 0.0) |
| 297 |
|
|
return(1); |
| 298 |
|
|
if(d < 0.0) |
| 299 |
|
|
return(-1); |
| 300 |
|
|
|
| 301 |
|
|
return(0); |
| 302 |
|
|
} |
| 303 |
|
|
|
| 304 |
|
|
smDepth_sort_tris(sm,vp,td) |
| 305 |
|
|
SM *sm; |
| 306 |
|
|
VIEW *vp; |
| 307 |
|
|
T_DEPTH *td; |
| 308 |
|
|
{ |
| 309 |
|
|
int i,j,t_id; |
| 310 |
|
|
TRI *tri; |
| 311 |
|
|
double d[3]; |
| 312 |
|
|
|
| 313 |
|
|
i = 0; |
| 314 |
|
|
SM_FOR_ALL_NEW_TRIS(sm,t_id) |
| 315 |
|
|
{ |
| 316 |
|
|
if(i >= smNew_tri_cnt) |
| 317 |
|
|
{ |
| 318 |
|
|
#ifdef DEBUG |
| 319 |
|
|
eputs("smDepth_sort_tris(): more new tris then counted\n"); |
| 320 |
|
|
#endif |
| 321 |
|
|
break; |
| 322 |
|
|
} |
| 323 |
|
|
tri = SM_NTH_TRI(sm,t_id); |
| 324 |
|
|
td[i].tri = t_id; |
| 325 |
|
|
for(j=0;j < 3;j++) |
| 326 |
|
|
d[j] = DIST(vp->vp,SM_T_NTH_WV(sm,tri,j)); |
| 327 |
|
|
td[i].depth = MIN_VEC3(d); |
| 328 |
|
|
i++; |
| 329 |
|
|
} |
| 330 |
|
|
qsort((void *)td,smNew_tri_cnt,sizeof(T_DEPTH),compare_tri_depths); |
| 331 |
|
|
} |
| 332 |
|
|
|
| 333 |
|
|
|
| 334 |
|
|
smUpdate_Rendered_mesh(sm,vp) |
| 335 |
|
|
SM *sm; |
| 336 |
|
|
VIEW *vp; |
| 337 |
|
|
{ |
| 338 |
|
|
static T_DEPTH *td= NULL; |
| 339 |
|
|
static int tsize = 0; |
| 340 |
|
|
int i; |
| 341 |
|
|
GLint depth_test; |
| 342 |
gwlarson |
3.2 |
double d; |
| 343 |
gwlarson |
3.1 |
|
| 344 |
|
|
/* For all of the NEW triangles (since last update): assume |
| 345 |
|
|
ACTIVE. Go through and sort on depth value (from vp). Turn |
| 346 |
|
|
Depth Buffer test off and render back-front |
| 347 |
|
|
*/ |
| 348 |
|
|
/* NOTE: could malloc each time or hard code */ |
| 349 |
|
|
if(smNew_tri_cnt > tsize) |
| 350 |
|
|
{ |
| 351 |
|
|
if(td) |
| 352 |
|
|
free(td); |
| 353 |
|
|
td = (T_DEPTH *)malloc(smNew_tri_cnt*sizeof(T_DEPTH)); |
| 354 |
|
|
tsize = smNew_tri_cnt; |
| 355 |
|
|
} |
| 356 |
|
|
if(!td) |
| 357 |
|
|
{ |
| 358 |
|
|
error(SYSTEM,"smUpdate_Rendered_mesh:Cannot allocate memory\n"); |
| 359 |
|
|
} |
| 360 |
|
|
smDepth_sort_tris(sm,vp,td); |
| 361 |
|
|
|
| 362 |
|
|
/* Turn Depth Test off */ |
| 363 |
|
|
glPushAttrib(GL_DEPTH_BUFFER_BIT); |
| 364 |
|
|
glDepthFunc(GL_ALWAYS); /* Turn off Depth-painter's algorithm */ |
| 365 |
|
|
|
| 366 |
gwlarson |
3.2 |
d = (dev_zmin+dev_zmax)/2.0; |
| 367 |
gwlarson |
3.1 |
/* Now render back-to front */ |
| 368 |
|
|
/* First render bg triangles */ |
| 369 |
|
|
glDisable(GL_DEPTH_TEST); |
| 370 |
|
|
glBegin(GL_TRIANGLES); |
| 371 |
|
|
for(i=0; i< smNew_tri_cnt; i++) |
| 372 |
|
|
if(SM_BG_TRI(sm,td[i].tri)) |
| 373 |
gwlarson |
3.2 |
smRender_bg_tri(sm,td[i].tri,vp,d); |
| 374 |
gwlarson |
3.1 |
glEnd(); |
| 375 |
|
|
|
| 376 |
|
|
glEnable(GL_DEPTH_TEST); |
| 377 |
|
|
glBegin(GL_TRIANGLES); |
| 378 |
|
|
for(i=0; i< smNew_tri_cnt; i++) |
| 379 |
|
|
if(!SM_BG_TRI(sm,td[i].tri)) |
| 380 |
|
|
smRender_tri(sm,td[i].tri,vp); |
| 381 |
|
|
glEnd(); |
| 382 |
|
|
|
| 383 |
|
|
/* Restore Depth Test */ |
| 384 |
|
|
glPopAttrib(); |
| 385 |
|
|
} |
| 386 |
|
|
|
| 387 |
|
|
/* |
| 388 |
|
|
* smUpdate(vp, qua) : update OpenGL output geometry for view vp |
| 389 |
|
|
* VIEW *vp; : desired view |
| 390 |
|
|
* int qual; : quality level (percentage on linear time scale) |
| 391 |
|
|
* |
| 392 |
|
|
* Draw new geometric representation using OpenGL calls. Assume that the |
| 393 |
|
|
* view has already been set up and the correct frame buffer has been |
| 394 |
|
|
* selected for drawing. The quality level is on a linear scale, where 100% |
| 395 |
|
|
* is full (final) quality. It is not necessary to redraw geometry that has |
| 396 |
|
|
* been output since the last call to smClean(). |
| 397 |
|
|
*/ |
| 398 |
|
|
smUpdate(vp,qual) |
| 399 |
|
|
VIEW *vp; |
| 400 |
|
|
int qual; |
| 401 |
|
|
{ |
| 402 |
|
|
double d; |
| 403 |
|
|
int t; |
| 404 |
|
|
#ifdef TEST_DRIVER |
| 405 |
|
|
Current_View = (*vp); |
| 406 |
|
|
#endif |
| 407 |
|
|
/* If view has moved beyond epsilon from canonical: must rebuild - |
| 408 |
|
|
epsilon is calculated as running avg of distance of sample points |
| 409 |
|
|
from canonical view: m = 1/(SUM1/r): some fraction of this |
| 410 |
|
|
*/ |
| 411 |
|
|
d = DIST(vp->vp,SM_VIEW_CENTER(smMesh)); |
| 412 |
|
|
if(qual >= 100 && d > SM_ALLOWED_VIEW_CHANGE(smMesh)) |
| 413 |
|
|
{ |
| 414 |
|
|
smNew_tri_cnt = 0; |
| 415 |
|
|
/* Re-build the mesh */ |
| 416 |
|
|
smRebuild_mesh(smMesh,vp); |
| 417 |
|
|
} |
| 418 |
|
|
/* Check if should draw ALL triangles in current frustum */ |
| 419 |
|
|
if(smClean_notify || (smNew_tri_cnt > SM_NUM_TRIS(smMesh)*SM_INC_PERCENT)) |
| 420 |
|
|
{ |
| 421 |
|
|
#ifdef TEST_DRIVER |
| 422 |
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
| 423 |
|
|
#else |
| 424 |
|
|
tmClearHisto(); |
| 425 |
|
|
tmAddHisto(SM_BRT(smMesh),SM_NUM_SAMP(smMesh),1); |
| 426 |
|
|
if(tmComputeMapping(0.,0.,0.) != TM_E_OK) |
| 427 |
|
|
return; |
| 428 |
|
|
if(tmMapPixels(SM_RGB(smMesh),SM_BRT(smMesh),SM_CHR(smMesh), |
| 429 |
|
|
SM_NUM_SAMP(smMesh))!=TM_E_OK) |
| 430 |
|
|
return; |
| 431 |
|
|
#endif |
| 432 |
|
|
smRender_mesh(smMesh,vp->vp); |
| 433 |
|
|
smClean_notify = FALSE; |
| 434 |
|
|
#ifdef TEST_DRIVER |
| 435 |
|
|
glFlush(); |
| 436 |
|
|
glutSwapBuffers(); |
| 437 |
|
|
#endif |
| 438 |
|
|
} |
| 439 |
|
|
/* Do an incremental update instead */ |
| 440 |
|
|
else |
| 441 |
|
|
{ |
| 442 |
|
|
if(!smNew_tri_cnt) |
| 443 |
|
|
return; |
| 444 |
|
|
#ifdef TEST_DRIVER |
| 445 |
|
|
glDrawBuffer(GL_FRONT); |
| 446 |
|
|
#else |
| 447 |
|
|
t = SM_TONE_MAP(smMesh); |
| 448 |
|
|
if(t == 0) |
| 449 |
|
|
{ |
| 450 |
|
|
tmClearHisto(); |
| 451 |
|
|
tmAddHisto(SM_BRT(smMesh),SM_NUM_SAMP(smMesh),1); |
| 452 |
|
|
if(tmComputeMapping(0.,0.,0.) != TM_E_OK) |
| 453 |
|
|
return; |
| 454 |
|
|
} |
| 455 |
|
|
if(tmMapPixels(SM_NTH_RGB(smMesh,t),&SM_NTH_BRT(smMesh,t), |
| 456 |
|
|
SM_NTH_CHR(smMesh,t), SM_NUM_SAMP(smMesh)-t) != TM_E_OK) |
| 457 |
|
|
return; |
| 458 |
|
|
#endif |
| 459 |
|
|
smUpdate_Rendered_mesh(smMesh,vp); |
| 460 |
|
|
|
| 461 |
|
|
#ifdef TEST_DRIVER |
| 462 |
|
|
glDrawBuffer(GL_BACK); |
| 463 |
|
|
#endif |
| 464 |
|
|
} |
| 465 |
|
|
SM_TONE_MAP(smMesh) = SM_NUM_SAMP(smMesh); |
| 466 |
|
|
} |
| 467 |
|
|
|
| 468 |
|
|
/* LATER:If quality < 100 should draw approximation because it indicates |
| 469 |
|
|
the user is moving |
| 470 |
|
|
*/ |
| 471 |
|
|
|
| 472 |
|
|
|
