| 374 |
|
) |
| 375 |
|
{ |
| 376 |
|
VIEW nv = ourview; |
| 377 |
+ |
FVECT voff; |
| 378 |
+ |
int i; |
| 379 |
|
double d; |
| 380 |
< |
/* get new view origin */ |
| 381 |
< |
if (sscanf(s, "%lf %lf", &d, &d) == 1) { |
| 382 |
< |
/* just moving some distance */ |
| 383 |
< |
VSUM(nv.vp, nv.vp, nv.vdir, d); |
| 384 |
< |
} else if (!sscanvec(s, nv.vp)) { |
| 385 |
< |
int x, y; /* need to pick origin */ |
| 380 |
> |
/* check for view origin shift */ |
| 381 |
> |
if (sscanf(s, "%lf", &d) == 1) { |
| 382 |
> |
double d_fore=d, d_right=0, d_up=0; |
| 383 |
> |
sscanf(s, "%*f %lf %lf", &d_right, &d_up); |
| 384 |
> |
d_right /= sqrt(nv.hn2); |
| 385 |
> |
for (i = 3; i--; ) |
| 386 |
> |
nv.vp[i] += d_fore*nv.vdir[i] + |
| 387 |
> |
d_right*nv.hvec[i] + |
| 388 |
> |
d_up*nv.vup[i]; |
| 389 |
> |
} else { /* else pick new origin */ |
| 390 |
> |
int x, y; |
| 391 |
|
RAY thisray; |
| 392 |
|
if (dev->getcur == NULL) |
| 393 |
|
return; |
| 408 |
|
flipsurface(&thisray); |
| 409 |
|
VSUM(nv.vp, thisray.rop, thisray.ron, 20.0*FTINY); |
| 410 |
|
VCOPY(nv.vdir, thisray.ron); |
| 411 |
< |
} else if (!sscanvec(sskip2(s,3), nv.vdir) || normalize(nv.vdir) == 0.0) |
| 412 |
< |
VCOPY(nv.vdir, ourview.vdir); |
| 413 |
< |
|
| 414 |
< |
d = DOT(nv.vdir, nv.vup); /* need different up vector? */ |
| 415 |
< |
if (d*d >= 1.-2.*FTINY) { |
| 416 |
< |
int i; |
| 417 |
< |
nv.vup[0] = nv.vup[1] = nv.vup[2] = 0.0; |
| 418 |
< |
for (i = 3; i--; ) |
| 419 |
< |
if (nv.vdir[i]*nv.vdir[i] < 0.34) |
| 413 |
< |
break; |
| 414 |
< |
nv.vup[i] = 1.; |
| 411 |
> |
d = DOT(nv.vdir, nv.vup); |
| 412 |
> |
if (d*d >= 1.-2.*FTINY) { |
| 413 |
> |
/* need different up vector */ |
| 414 |
> |
nv.vup[0] = nv.vup[1] = nv.vup[2] = 0.0; |
| 415 |
> |
for (i = 3; i--; ) |
| 416 |
> |
if (nv.vdir[i]*nv.vdir[i] < 0.34) |
| 417 |
> |
break; |
| 418 |
> |
nv.vup[i] = 1.; |
| 419 |
> |
} |
| 420 |
|
} |
| 421 |
|
newview(&nv); |
| 422 |
|
} |
