89 |
|
return; |
90 |
|
memerr: |
91 |
|
error(SYSTEM, "out of memory in setfunc"); |
92 |
– |
#undef mxf |
92 |
|
} |
93 |
|
|
94 |
|
|
132 |
|
double sum; |
133 |
|
register RAY *r; |
134 |
|
|
135 |
< |
n--; /* for convenience */ |
135 |
> |
if (--n < 0) |
136 |
> |
goto badchan; |
137 |
|
|
138 |
– |
if (n < 0 || n > 23) |
139 |
– |
error(USER, "illegal channel number"); |
140 |
– |
|
141 |
– |
if (n == 9) { /* distance */ |
142 |
– |
|
143 |
– |
sum = fray->rot; |
144 |
– |
for (r = fray->parent; r != NULL; r = r->parent) |
145 |
– |
sum += r->rot; |
146 |
– |
return(sum * fxf.sca); |
147 |
– |
|
148 |
– |
} |
149 |
– |
if (n == 10) /* dot product */ |
150 |
– |
return(fray->rod); |
151 |
– |
|
138 |
|
if (n < 3) /* ray direction */ |
139 |
|
|
140 |
|
return( ( fray->rdir[0]*fxf.xfm[0][n] + |
156 |
|
fray->rop[2]*fxf.xfm[2][n-6] + |
157 |
|
fxf.xfm[3][n-6] ); |
158 |
|
|
159 |
+ |
if (n == 9) { /* distance */ |
160 |
+ |
|
161 |
+ |
sum = fray->rot; |
162 |
+ |
for (r = fray->parent; r != NULL; r = r->parent) |
163 |
+ |
sum += r->rot; |
164 |
+ |
return(sum * fxf.sca); |
165 |
+ |
|
166 |
+ |
} |
167 |
+ |
if (n == 10) /* dot product */ |
168 |
+ |
return(fray->rod); |
169 |
+ |
|
170 |
|
if (n == 11) /* scale */ |
171 |
|
return(fxf.sca); |
172 |
|
|
181 |
|
|
182 |
|
if (n < 24) /* k unit vector */ |
183 |
|
return(fxf.xfm[2][n-21] / fxf.sca); |
184 |
+ |
badchan: |
185 |
+ |
error(USER, "illegal channel number"); |
186 |
|
} |