| 31 |
|
static int raymove(), checkhit(); |
| 32 |
|
static void checkset(); |
| 33 |
|
|
| 34 |
– |
#ifndef MAXLOOP |
| 35 |
– |
#define MAXLOOP 0 /* modifier loop detection */ |
| 36 |
– |
#endif |
| 37 |
– |
|
| 34 |
|
#define RAYHIT (-1) /* return value for intercepted ray */ |
| 35 |
|
|
| 36 |
|
|
| 154 |
|
{ |
| 155 |
|
int gotmat; |
| 156 |
|
register OBJREC *m; |
| 161 |
– |
#if MAXLOOP |
| 162 |
– |
static int depth = 0; |
| 163 |
– |
/* check for infinite loop */ |
| 164 |
– |
if (depth++ >= MAXLOOP) |
| 165 |
– |
objerror(r->ro, USER, "possible modifier loop"); |
| 166 |
– |
#endif |
| 157 |
|
r->rt = r->rot; /* set effective ray length */ |
| 158 |
|
for (gotmat = 0; !gotmat && mod != OVOID; mod = m->omod) { |
| 159 |
|
m = objptr(mod); |
| 168 |
|
m->otype != MAT_CLIP && |
| 169 |
|
(ofun[m->otype].flags & (T_M|T_X))) { |
| 170 |
|
if (irr_ignore(m->otype)) { |
| 181 |
– |
#if MAXLOOP |
| 182 |
– |
depth--; |
| 183 |
– |
#endif |
| 171 |
|
raytrans(r); |
| 172 |
|
return(1); |
| 173 |
|
} |
| 177 |
|
/* materials call raytexture */ |
| 178 |
|
gotmat = (*ofun[m->otype].funp)(m, r); |
| 179 |
|
} |
| 193 |
– |
#if MAXLOOP |
| 194 |
– |
depth--; |
| 195 |
– |
#endif |
| 180 |
|
return(gotmat); |
| 181 |
|
} |
| 182 |
|
|
| 219 |
|
OBJECT mod; |
| 220 |
|
{ |
| 221 |
|
register OBJREC *m; |
| 238 |
– |
#if MAXLOOP |
| 239 |
– |
static int depth = 0; |
| 240 |
– |
/* check for infinite loop */ |
| 241 |
– |
if (depth++ >= MAXLOOP) |
| 242 |
– |
objerror(r->ro, USER, "modifier loop"); |
| 243 |
– |
#endif |
| 222 |
|
/* execute textures and patterns */ |
| 223 |
|
for ( ; mod != OVOID; mod = m->omod) { |
| 224 |
|
m = objptr(mod); |
| 234 |
|
objerror(r->ro, USER, errmsg); |
| 235 |
|
} |
| 236 |
|
} |
| 259 |
– |
#if MAXLOOP |
| 260 |
– |
depth--; /* end here */ |
| 261 |
– |
#endif |
| 237 |
|
} |
| 238 |
|
|
| 239 |
|
|