| 6 |
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*/ |
| 7 |
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|
| 8 |
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#include "copyright.h" |
| 9 |
+ |
|
| 10 |
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#include "ray.h" |
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#include "otypes.h" |
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+ |
#include "rtotypes.h" |
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#include "otspecial.h" |
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|
| 15 |
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/* |
| 24 |
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*/ |
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|
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int |
| 27 |
< |
m_alias(m, r) /* transfer shading to alias target */ |
| 28 |
< |
OBJREC *m; |
| 29 |
< |
RAY *r; |
| 27 |
> |
m_alias( /* transfer shading to alias target */ |
| 28 |
> |
OBJREC *m, |
| 29 |
> |
RAY *r |
| 30 |
> |
) |
| 31 |
|
{ |
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|
OBJECT aobj; |
| 33 |
+ |
OBJREC *aop; |
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|
OBJREC arec; |
| 35 |
+ |
int rval; |
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|
/* straight replacement? */ |
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if (!m->oargs.nsargs) |
| 38 |
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return(rayshade(r, m->omod)); |
| 39 |
< |
/* else replace alias */ |
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< |
if (m->oargs.nsargs != 1) |
| 41 |
< |
objerror(m, INTERNAL, "bad # string arguments"); |
| 42 |
< |
aobj = lastmod(objndx(m), m->oargs.sarg[0]); |
| 43 |
< |
if (aobj < 0) |
| 44 |
< |
objerror(m, USER, "bad reference"); |
| 45 |
< |
copystruct(&arec, objptr(aobj)); |
| 46 |
< |
/* irradiance hack */ |
| 47 |
< |
if (do_irrad && !(r->crtype & ~(PRIMARY|TRANS)) && |
| 48 |
< |
(ofun[arec.otype].flags & (T_M|T_X))) { |
| 49 |
< |
if (irr_ignore(arec.otype)) { |
| 50 |
< |
raytrans(r); |
| 51 |
< |
return(1); |
| 52 |
< |
} |
| 53 |
< |
if (!islight(arec.otype)) |
| 54 |
< |
return((*ofun[Lamb.otype].funp)(&Lamb, r)); |
| 50 |
< |
} |
| 39 |
> |
|
| 40 |
> |
aop = m; /* else look it up */ |
| 41 |
> |
aobj = objndx(aop); |
| 42 |
> |
do { /* follow entire alias trail */ |
| 43 |
> |
if (!aop->oargs.nsargs) |
| 44 |
> |
aobj = aop->omod; |
| 45 |
> |
else if (aop->oargs.nsargs == 1) |
| 46 |
> |
aobj = lastmod(aobj, aop->oargs.sarg[0]); |
| 47 |
> |
else |
| 48 |
> |
objerror(aop, INTERNAL, "bad # string arguments"); |
| 49 |
> |
if (aobj < 0) |
| 50 |
> |
objerror(aop, USER, "bad reference"); |
| 51 |
> |
aop = objptr(aobj); |
| 52 |
> |
} while (aop->otype == MOD_ALIAS); |
| 53 |
> |
/* copy struct */ |
| 54 |
> |
arec = *aop; |
| 55 |
|
/* substitute modifier */ |
| 56 |
|
arec.omod = m->omod; |
| 57 |
+ |
/* irradiance hack */ |
| 58 |
+ |
if (do_irrad && !(r->crtype & ~(PRIMARY|TRANS)) && raytirrad(&arec, r)) |
| 59 |
+ |
return(1); |
| 60 |
|
/* replacement shader */ |
| 61 |
< |
return((*ofun[arec.otype].funp)(&arec, r)); |
| 61 |
> |
rval = (*ofun[arec.otype].funp)(&arec, r); |
| 62 |
> |
/* save allocated struct */ |
| 63 |
> |
if (arec.os != aop->os) { |
| 64 |
> |
if (aop->os != NULL) /* should never happen */ |
| 65 |
> |
free_os(aop); |
| 66 |
> |
aop->os = arec.os; |
| 67 |
> |
} |
| 68 |
> |
return(rval); |
| 69 |
|
} |
