| 133 |
|
fprintf(stderr, "%s: no view in picture\n", argv[i]); |
| 134 |
|
exit(1); |
| 135 |
|
} |
| 136 |
< |
if (i+1 < argc) { |
| 137 |
< |
zfd = open(argv[i+1], O_RDONLY); |
| 138 |
< |
if (zfd < 0) { |
| 139 |
< |
fprintf(stderr, |
| 140 |
< |
"%s: cannot open depth buffer\n", |
| 141 |
< |
argv[i+1]); |
| 136 |
> |
if (!getdim & (i+1 < argc)) { |
| 137 |
> |
zfd = open_float_depth(argv[i+1], (long)rs.xr*rs.yr); |
| 138 |
> |
if (zfd < 0) |
| 139 |
|
exit(1); |
| 143 |
– |
} |
| 140 |
|
} |
| 141 |
|
} |
| 142 |
|
if ((err = setview(&vw)) != NULL) { |
| 147 |
|
normaspect(viewaspect(&vw), &pa, &rs.xr, &rs.yr); |
| 148 |
|
if (getdim) { |
| 149 |
|
printf("-x %d -y %d -ld%c\n", rs.xr, rs.yr, |
| 150 |
< |
vw.vaft > FTINY ? '+' : '-'); |
| 150 |
> |
(i+1 == argc) & (vw.vaft > FTINY) ? '+' : '-'); |
| 151 |
|
exit(0); |
| 152 |
|
} |
| 153 |
|
if (fromstdin) |
| 186 |
|
RREAL loc[2]; |
| 187 |
|
int pp[2]; |
| 188 |
|
double d; |
| 189 |
< |
int i; |
| 189 |
> |
int i, c; |
| 190 |
|
|
| 191 |
|
while (fscanf(fp, "%lf %lf", &px, &py) == 2) { |
| 192 |
|
px += .5; py += .5; |
| 193 |
|
loc[0] = px/rs.xr; loc[1] = py/rs.yr; |
| 194 |
|
if (zfd >= 0) { |
| 195 |
+ |
if ((loc[0] < 0) | (loc[0] >= 1) | |
| 196 |
+ |
(loc[1] < 0) | (loc[1] >= 1)) { |
| 197 |
+ |
fprintf(stderr, "%s: input pixel outside image\n", |
| 198 |
+ |
progname); |
| 199 |
+ |
exit(1); |
| 200 |
+ |
} |
| 201 |
|
loc2pix(pp, &rs, loc[0], loc[1]); |
| 202 |
|
if (lseek(zfd, |
| 203 |
|
(pp[1]*scanlen(&rs)+pp[0])*sizeof(float), |
| 209 |
|
exit(1); |
| 210 |
|
} |
| 211 |
|
} |
| 212 |
< |
jitterloc(loc); |
| 213 |
< |
d = viewray(rorg, rdir, &vw, loc[0], loc[1]); |
| 214 |
< |
if (d < -FTINY) |
| 215 |
< |
rorg[0] = rorg[1] = rorg[2] = |
| 216 |
< |
rdir[0] = rdir[1] = rdir[2] = 0.; |
| 217 |
< |
else if (zfd >= 0) |
| 218 |
< |
for (i = 0; i < 3; i++) { |
| 219 |
< |
rorg[i] += rdir[i]*zval; |
| 220 |
< |
rdir[i] = -rdir[i]; |
| 212 |
> |
for (c = repeatcnt; c-- > 0; ) { |
| 213 |
> |
jitterloc(loc); |
| 214 |
> |
d = viewray(rorg, rdir, &vw, loc[0], loc[1]); |
| 215 |
> |
if (d < -FTINY) |
| 216 |
> |
rorg[0] = rorg[1] = rorg[2] = |
| 217 |
> |
rdir[0] = rdir[1] = rdir[2] = 0.; |
| 218 |
> |
else if (zfd >= 0) |
| 219 |
> |
for (i = 0; i < 3; i++) { |
| 220 |
> |
rorg[i] += rdir[i]*zval; |
| 221 |
> |
rdir[i] = -rdir[i]; |
| 222 |
> |
} |
| 223 |
> |
else if (d > FTINY) { |
| 224 |
> |
rdir[0] *= d; rdir[1] *= d; rdir[2] *= d; |
| 225 |
|
} |
| 226 |
< |
else if (d > FTINY) { |
| 227 |
< |
rdir[0] *= d; rdir[1] *= d; rdir[2] *= d; |
| 226 |
> |
(*putr)(rorg, rdir); |
| 227 |
> |
if (c) { |
| 228 |
> |
loc[0] = px/rs.xr; loc[1] = py/rs.yr; |
| 229 |
> |
} |
| 230 |
|
} |
| 223 |
– |
(*putr)(rorg, rdir); |
| 231 |
|
if (unbuffered) |
| 232 |
|
fflush(stdout); |
| 233 |
|
} |
| 274 |
|
rdir[0] = rdir[1] = rdir[2] = 0.; |
| 275 |
|
else if (zfd >= 0) |
| 276 |
|
for (i = 0; i < 3; i++) { |
| 277 |
< |
rorg[i] += rdir[i]*zbuf[si]; |
| 278 |
< |
rdir[i] = -rdir[i]; |
| 277 |
> |
rdir[i] = -rdir[i]*zbuf[si]; |
| 278 |
> |
rorg[i] -= rdir[i]; |
| 279 |
|
} |
| 280 |
|
else if (d > FTINY) { |
| 281 |
|
rdir[0] *= d; rdir[1] *= d; rdir[2] *= d; |
| 311 |
|
|
| 312 |
|
v[0] = ro[0]; v[1] = ro[1]; v[2] = ro[2]; |
| 313 |
|
v[3] = rd[0]; v[4] = rd[1]; v[5] = rd[2]; |
| 314 |
< |
fwrite(v, sizeof(float), 6, stdout); |
| 314 |
> |
putbinary(v, sizeof(float), 6, stdout); |
| 315 |
|
} |
| 316 |
|
|
| 317 |
|
|
| 325 |
|
|
| 326 |
|
v[0] = ro[0]; v[1] = ro[1]; v[2] = ro[2]; |
| 327 |
|
v[3] = rd[0]; v[4] = rd[1]; v[5] = rd[2]; |
| 328 |
< |
fwrite(v, sizeof(double), 6, stdout); |
| 328 |
> |
putbinary(v, sizeof(double), 6, stdout); |
| 329 |
|
} |
