| 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) |
| 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), |
| 269 |
|
rdir[0] = rdir[1] = rdir[2] = 0.; |
| 270 |
|
else if (zfd >= 0) |
| 271 |
|
for (i = 0; i < 3; i++) { |
| 272 |
< |
rorg[i] += rdir[i]*zbuf[si]; |
| 273 |
< |
rdir[i] = -rdir[i]; |
| 272 |
> |
rdir[i] = -rdir[i]*zbuf[si]; |
| 273 |
> |
rorg[i] -= rdir[i]; |
| 274 |
|
} |
| 275 |
|
else if (d > FTINY) { |
| 276 |
|
rdir[0] *= d; rdir[1] *= d; rdir[2] *= d; |
