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/* Copyright (c) 1993 Regents of the University of California */ |
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/* Copyright (c) 1995 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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o->otype != OBJ_SOURCE && |
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m->oargs.farg[3] <= FTINY) |
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continue; /* don't bother */ |
| 71 |
+ |
if (m->oargs.farg[0] <= FTINY && m->oargs.farg[1] <= FTINY && |
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+ |
m->oargs.farg[2] <= FTINY) |
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+ |
continue; /* don't bother */ |
| 74 |
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|
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if (sfun[o->otype].of == NULL || |
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sfun[o->otype].of->setsrc == NULL) |
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| 156 |
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|
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srcvalue(r) /* punch ray to source and compute value */ |
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< |
RAY *r; |
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> |
register RAY *r; |
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{ |
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register SRCREC *sp; |
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|
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/* check intersection */ |
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if (!(*ofun[sp->so->otype].funp)(sp->so, r)) |
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return; |
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raycont(r); /* compute contribution */ |
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> |
if (!rayshade(r, r->ro->omod)) /* compute contribution */ |
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goto nomat; |
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return; |
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} |
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/* compute intersection */ |
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(*ofun[sp->so->otype].funp)(sp->so, r)) { |
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if (sp->sa.success >= 0) |
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sp->sa.success++; |
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raycont(r); /* compute contribution */ |
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> |
if (!rayshade(r, r->ro->omod)) /* compute contribution */ |
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> |
goto nomat; |
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return; |
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} |
| 180 |
+ |
/* we missed our mark! */ |
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if (sp->sa.success < 0) |
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return; /* bitched already */ |
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sp->sa.success -= AIMREQT; |
| 186 |
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sprintf(errmsg, "aiming failure for light source \"%s\"", |
| 187 |
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sp->so->oname); |
| 188 |
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error(WARNING, errmsg); /* issue warning */ |
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+ |
return; |
| 190 |
+ |
nomat: |
| 191 |
+ |
objerror(r->ro, USER, "material not found"); |
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} |
| 193 |
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|
| 194 |
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|
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( sr.ro != source[scp->sno].so || |
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source[scp->sno].sflags & SFOLLOW )) { |
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/* follow entire path */ |
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< |
raycont(&sr); |
| 330 |
> |
if (!raycont(&sr)) |
| 331 |
> |
objerror(sr.ro, USER, "material not found"); |
| 332 |
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if (trace != NULL) |
| 333 |
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(*trace)(&sr); /* trace execution */ |
| 334 |
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if (bright(sr.rcol) <= FTINY) |
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* (Glows with negative radii should NEVER participate in illumination.) |
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*/ |
| 407 |
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|
| 408 |
< |
#define distglow(m, r) (m->otype==MAT_GLOW && \ |
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> |
#define distglow(m, r, d) (m->otype==MAT_GLOW && \ |
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m->oargs.farg[3] >= -FTINY && \ |
| 410 |
< |
r->rot > m->oargs.farg[3]) |
| 410 |
> |
d > m->oargs.farg[3]) |
| 411 |
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|
| 412 |
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/* badcomponent * |
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* |
| 420 |
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|
| 421 |
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#define badcomponent(m, r) (r->crtype&(AMBIENT|SPECULAR) && \ |
| 422 |
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!(r->crtype&SHADOW || r->rod < 0.0 || \ |
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< |
distglow(m, r))) |
| 423 |
> |
/* not 100% correct */ distglow(m, r, r->rot))) |
| 424 |
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|
| 425 |
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/* passillum * |
| 426 |
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* |
| 438 |
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* The -dv flag is normally on for sources to be visible. |
| 439 |
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*/ |
| 440 |
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|
| 441 |
< |
#define srcignore(m, r) (!directvis && !(r->crtype&SHADOW) && \ |
| 442 |
< |
!distglow(m, r)) |
| 441 |
> |
#define srcignore(m, r) !(directvis || r->crtype&SHADOW || \ |
| 442 |
> |
distglow(m, r, raydist(r,PRIMARY))) |
| 443 |
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|
| 444 |
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| 445 |
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m_light(m, r) /* ray hit a light source */ |
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/* check for over-counting */ |
| 450 |
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if (badcomponent(m, r)) |
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return(1); |
| 452 |
< |
if (wrongsource(m,r)) |
| 452 |
> |
if (wrongsource(m, r)) |
| 453 |
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return(1); |
| 454 |
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/* check for passed illum */ |
| 455 |
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if (passillum(m, r)) { |