| 28 |
|
*/ |
| 29 |
|
|
| 30 |
|
|
| 31 |
< |
extern int |
| 31 |
> |
int |
| 32 |
|
t_func( /* compute texture for ray */ |
| 33 |
< |
register OBJREC *m, |
| 34 |
< |
register RAY *r |
| 33 |
> |
OBJREC *m, |
| 34 |
> |
RAY *r |
| 35 |
|
) |
| 36 |
|
{ |
| 37 |
|
FVECT disp; |
| 38 |
|
double d; |
| 39 |
< |
register MFUNC *mf; |
| 40 |
< |
register int i; |
| 39 |
> |
MFUNC *mf; |
| 40 |
> |
int i; |
| 41 |
|
|
| 42 |
|
if (m->oargs.nsargs < 4) |
| 43 |
|
objerror(m, USER, "bad # arguments"); |
| 46 |
|
errno = 0; |
| 47 |
|
for (i = 0; i < 3; i++) { |
| 48 |
|
disp[i] = evalue(mf->ep[i]); |
| 49 |
< |
if (errno == EDOM || errno == ERANGE) { |
| 49 |
> |
if ((errno == EDOM) | (errno == ERANGE)) { |
| 50 |
|
objerror(m, WARNING, "compute error"); |
| 51 |
|
return(0); |
| 52 |
|
} |
| 53 |
|
} |
| 54 |
< |
if (mf->f != &unitxf) |
| 55 |
< |
multv3(disp, disp, mf->f->xfm); |
| 54 |
> |
if (mf->fxp != &unitxf) |
| 55 |
> |
multv3(disp, disp, mf->fxp->xfm); |
| 56 |
|
if (r->rox != NULL) { |
| 57 |
|
multv3(disp, disp, r->rox->f.xfm); |
| 58 |
< |
d = 1.0 / (mf->f->sca * r->rox->f.sca); |
| 58 |
> |
d = 1.0 / (mf->fxp->sca * r->rox->f.sca); |
| 59 |
|
} else |
| 60 |
< |
d = 1.0 / mf->f->sca; |
| 60 |
> |
d = 1.0 / mf->fxp->sca; |
| 61 |
|
VSUM(r->pert, r->pert, disp, d); |
| 62 |
|
return(0); |
| 63 |
|
} |
