148 |
|
MESH *mp |
149 |
|
) |
150 |
|
{ |
151 |
– |
int advance = 1; |
151 |
|
int pn; |
152 |
|
MESHPATCH *pp; |
153 |
|
|
154 |
< |
if (*tip == OVOID) { /* check for first index */ |
156 |
< |
*tip = 0; |
157 |
< |
advance = 0; |
158 |
< |
} |
159 |
< |
pn = *tip >> 10; |
154 |
> |
pn = ++(*tip) >> 10; /* next triangle (OVOID init) */ |
155 |
|
while (pn < mp->npatches) { |
156 |
|
pp = &mp->patch[pn]; |
157 |
|
if (!(*tip & 0x200)) { /* local triangle? */ |
158 |
< |
if ((*tip & 0x1ff) < pp->ntris - advance) { |
164 |
< |
*tip += advance; |
158 |
> |
if ((*tip & 0x1ff) < pp->ntris) |
159 |
|
return(1); |
166 |
– |
} |
160 |
|
*tip &= ~0x1ff; /* move on to single-joiners */ |
161 |
|
*tip |= 0x200; |
169 |
– |
advance = 0; |
162 |
|
} |
163 |
|
if (!(*tip & 0x100)) { /* single joiner? */ |
164 |
< |
if ((*tip & 0xff) < pp->nj1tris - advance) { |
173 |
< |
*tip += advance; |
164 |
> |
if ((*tip & 0xff) < pp->nj1tris) |
165 |
|
return(1); |
175 |
– |
} |
166 |
|
*tip &= ~0xff; /* move on to double-joiners */ |
167 |
|
*tip |= 0x100; |
178 |
– |
advance = 0; |
168 |
|
} |
169 |
< |
if ((*tip & 0xff) < pp->nj2tris - advance) { |
181 |
< |
*tip += advance; |
169 |
> |
if ((*tip & 0xff) < pp->nj2tris) |
170 |
|
return(1); |
183 |
– |
} |
171 |
|
*tip = ++pn << 10; /* first in next patch */ |
185 |
– |
advance = 0; |
172 |
|
} |
173 |
|
return(0); /* out of patches */ |
174 |
|
} |