106 |
|
int n |
107 |
|
) |
108 |
|
{ |
109 |
+ |
double corr = 1.; |
110 |
|
FVECT nv, sc; |
111 |
< |
double od; |
112 |
< |
register int i, j; |
111 |
> |
double od, offs; |
112 |
> |
int i; |
113 |
|
/* get surface normal and offset */ |
114 |
< |
od = getplaneq(nv, o); |
115 |
< |
/* check for extreme point for behind */ |
114 |
> |
offs = od = getplaneq(nv, o); |
115 |
> |
if (s->sflags & SDISTANT) |
116 |
> |
offs = 0.; |
117 |
> |
/* check for extreme point behind */ |
118 |
> |
if (s->sflags & SCIR) { |
119 |
> |
if (s->sflags & (SFLAT|SDISTANT)) |
120 |
> |
corr = 1.12837917; /* correct setflatss() */ |
121 |
> |
else |
122 |
> |
corr = 1.0/0.7236; /* correct sphsetsrc() */ |
123 |
> |
} |
124 |
|
VCOPY(sc, s->sloc); |
125 |
|
for (i = s->sflags & SFLAT ? SV : SW; i >= 0; i--) |
126 |
< |
if (DOT(nv, s->ss[i]) > 0.) |
127 |
< |
for (j = 0; j < 3; j++) |
119 |
< |
sc[j] += s->ss[i][j]; |
126 |
> |
if (DOT(nv, s->ss[i]) > offs) |
127 |
> |
VSUM(sc, sc, s->ss[i], corr); |
128 |
|
else |
129 |
< |
for (j = 0; j < 3; j++) |
130 |
< |
sc[j] -= s->ss[i][j]; |
123 |
< |
if (DOT(sc, nv) <= (s->sflags & SDISTANT ? FTINY : od+FTINY)) |
129 |
> |
VSUM(sc, sc, s->ss[i], -corr); |
130 |
> |
if (DOT(sc, nv) <= offs+FTINY) |
131 |
|
return(0); |
132 |
|
/* everything OK -- compute projection */ |
133 |
|
mirrorproj(pm, nv, od); |