| 1 |
greg |
2.1 |
#ifndef lint |
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static const char RCSid[] = "$Id$"; |
| 3 |
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#endif |
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/* |
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* Mesh support routines |
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*/ |
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#include "standard.h" |
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#include "octree.h" |
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#include "object.h" |
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#include "mesh.h" |
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#include "lookup.h" |
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/* An encoded mesh vertex */ |
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typedef struct { |
| 16 |
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int fl; |
| 17 |
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uint4 xyz[3]; |
| 18 |
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int4 norm; |
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greg |
2.2 |
uint4 uv[2]; |
| 20 |
greg |
2.1 |
} MCVERT; |
| 21 |
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| 22 |
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#define MPATCHBLKSIZ 128 /* patch allocation block size */ |
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#define IO_LEGAL (IO_BOUNDS|IO_TREE|IO_SCENE) |
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static MESH *mlist = NULL; /* list of loaded meshes */ |
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static unsigned long |
| 30 |
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cvhash(cvp) /* hash an encoded vertex */ |
| 31 |
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MCVERT *cvp; |
| 32 |
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{ |
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unsigned long hval; |
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| 35 |
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if (!(cvp->fl & MT_V)) |
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return(0); |
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hval = cvp->xyz[0] ^ cvp->xyz[1] << 11 ^ cvp->xyz[2] << 22; |
| 38 |
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if (cvp->fl & MT_N) |
| 39 |
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hval ^= cvp->norm; |
| 40 |
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if (cvp->fl & MT_UV) |
| 41 |
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hval ^= cvp->uv[0] ^ cvp->uv[1] << 16; |
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return(hval); |
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} |
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| 45 |
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| 46 |
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static int |
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cvcmp(v1, v2) /* compare encoded vertices */ |
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register MCVERT *v1, *v2; |
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{ |
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if (v1->fl != v2->fl) |
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return(1); |
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if (v1->xyz[0] != v2->xyz[0]) |
| 53 |
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return(1); |
| 54 |
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if (v1->xyz[1] != v2->xyz[1]) |
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return(1); |
| 56 |
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if (v1->xyz[2] != v2->xyz[2]) |
| 57 |
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return(1); |
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if (v1->fl & MT_N && v1->norm != v2->norm) |
| 59 |
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return(1); |
| 60 |
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if (v1->fl & MT_UV) { |
| 61 |
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if (v1->uv[0] != v2->uv[0]) |
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return(1); |
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if (v1->uv[1] != v2->uv[1]) |
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return(1); |
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} |
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return(0); |
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} |
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| 69 |
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| 70 |
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MESH * |
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getmesh(mname, flags) /* get mesh data */ |
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char *mname; |
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int flags; |
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{ |
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char *pathname; |
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register MESH *ms; |
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flags &= IO_LEGAL; |
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for (ms = mlist; ms != NULL; ms = ms->next) |
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if (!strcmp(mname, ms->name)) { |
| 81 |
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if ((ms->ldflags & flags) == flags) { |
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ms->nref++; |
| 83 |
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return(ms); /* loaded */ |
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} |
| 85 |
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break; /* load the rest */ |
| 86 |
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} |
| 87 |
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if (ms == NULL) { |
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ms = (MESH *)calloc(1, sizeof(MESH)); |
| 89 |
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if (ms == NULL) |
| 90 |
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error(SYSTEM, "out of memory in getmesh"); |
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ms->name = savestr(mname); |
| 92 |
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ms->nref = 1; |
| 93 |
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ms->mcube.cutree = EMPTY; |
| 94 |
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ms->next = mlist; |
| 95 |
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mlist = ms; |
| 96 |
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} |
| 97 |
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if ((pathname = getpath(mname, getlibpath(), R_OK)) == NULL) { |
| 98 |
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sprintf(errmsg, "cannot find mesh file \"%s\"", mname); |
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error(USER, errmsg); |
| 100 |
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} |
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flags &= ~ms->ldflags; |
| 102 |
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if (flags) |
| 103 |
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readmesh(ms, pathname, flags); |
| 104 |
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return(ms); |
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} |
| 106 |
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| 108 |
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MESHINST * |
| 109 |
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getmeshinst(o, flags) /* create mesh instance */ |
| 110 |
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OBJREC *o; |
| 111 |
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int flags; |
| 112 |
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{ |
| 113 |
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register MESHINST *ins; |
| 114 |
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| 115 |
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flags &= IO_LEGAL; |
| 116 |
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if ((ins = (MESHINST *)o->os) == NULL) { |
| 117 |
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if ((ins = (MESHINST *)malloc(sizeof(MESHINST))) == NULL) |
| 118 |
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error(SYSTEM, "out of memory in getmeshinst"); |
| 119 |
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if (o->oargs.nsargs < 1) |
| 120 |
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objerror(o, USER, "bad # of arguments"); |
| 121 |
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if (fullxf(&ins->x, o->oargs.nsargs-1, |
| 122 |
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o->oargs.sarg+1) != o->oargs.nsargs-1) |
| 123 |
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objerror(o, USER, "bad transform"); |
| 124 |
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if (ins->x.f.sca < 0.0) { |
| 125 |
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ins->x.f.sca = -ins->x.f.sca; |
| 126 |
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ins->x.b.sca = -ins->x.b.sca; |
| 127 |
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} |
| 128 |
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ins->msh = NULL; |
| 129 |
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o->os = (char *)ins; |
| 130 |
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} |
| 131 |
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if (ins->msh == NULL || (ins->msh->ldflags & flags) != flags) |
| 132 |
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ins->msh = getmesh(o->oargs.sarg[0], flags); |
| 133 |
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return(ins); |
| 134 |
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} |
| 135 |
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| 136 |
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| 137 |
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int |
| 138 |
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getmeshtrivid(tvid, mp, ti) /* get triangle vertex ID's */ |
| 139 |
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int4 tvid[3]; |
| 140 |
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register MESH *mp; |
| 141 |
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OBJECT ti; |
| 142 |
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{ |
| 143 |
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int pn = ti >> 10; |
| 144 |
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| 145 |
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if (pn >= mp->npatches) |
| 146 |
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return(0); |
| 147 |
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ti &= 0x3ff; |
| 148 |
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if (!(ti & 0x200)) { /* local triangle */ |
| 149 |
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struct PTri *tp; |
| 150 |
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if (ti >= mp->patch[pn].ntris) |
| 151 |
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return(0); |
| 152 |
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tp = &mp->patch[pn].tri[ti]; |
| 153 |
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tvid[0] = tvid[1] = tvid[2] = pn << 8; |
| 154 |
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tvid[0] |= tp->v1; |
| 155 |
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tvid[1] |= tp->v2; |
| 156 |
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tvid[2] |= tp->v3; |
| 157 |
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return(1); |
| 158 |
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} |
| 159 |
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ti &= ~0x200; |
| 160 |
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if (!(ti & 0x100)) { /* single link vertex */ |
| 161 |
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struct PJoin1 *tp1; |
| 162 |
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if (ti >= mp->patch[pn].nj1tris) |
| 163 |
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return(0); |
| 164 |
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tp1 = &mp->patch[pn].j1tri[ti]; |
| 165 |
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tvid[0] = tp1->v1j; |
| 166 |
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tvid[1] = tvid[2] = pn << 8; |
| 167 |
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tvid[1] |= tp1->v2; |
| 168 |
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tvid[2] |= tp1->v3; |
| 169 |
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return(1); |
| 170 |
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} |
| 171 |
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ti &= ~0x100; |
| 172 |
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{ /* double link vertex */ |
| 173 |
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struct PJoin2 *tp2; |
| 174 |
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if (ti >= mp->patch[pn].nj2tris) |
| 175 |
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return(0); |
| 176 |
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tp2 = &mp->patch[pn].j2tri[ti]; |
| 177 |
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tvid[0] = tp2->v1j; |
| 178 |
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tvid[1] = tp2->v2j; |
| 179 |
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tvid[2] = pn << 8 | tp2->v3; |
| 180 |
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} |
| 181 |
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return(1); |
| 182 |
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} |
| 183 |
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| 184 |
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| 185 |
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int |
| 186 |
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getmeshvert(vp, mp, vid, what) /* get triangle vertex from ID */ |
| 187 |
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MESHVERT *vp; |
| 188 |
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register MESH *mp; |
| 189 |
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int4 vid; |
| 190 |
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int what; |
| 191 |
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{ |
| 192 |
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int pn = vid >> 8; |
| 193 |
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MESHPATCH *pp; |
| 194 |
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double vres; |
| 195 |
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register int i; |
| 196 |
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| 197 |
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vp->fl = 0; |
| 198 |
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if (pn >= mp->npatches) |
| 199 |
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return(0); |
| 200 |
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pp = &mp->patch[pn]; |
| 201 |
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vid &= 0xff; |
| 202 |
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if (vid >= pp->nverts) |
| 203 |
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return(0); |
| 204 |
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/* get location */ |
| 205 |
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if (what & MT_V) { |
| 206 |
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vres = (1./4294967296.)*mp->mcube.cusize; |
| 207 |
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for (i = 0; i < 3; i++) |
| 208 |
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vp->v[i] = mp->mcube.cuorg[i] + |
| 209 |
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(pp->xyz[vid][i] + .5)*vres; |
| 210 |
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vp->fl |= MT_V; |
| 211 |
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} |
| 212 |
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/* get normal */ |
| 213 |
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if (what & MT_N && pp->norm != NULL && pp->norm[vid]) { |
| 214 |
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decodedir(vp->n, pp->norm[vid]); |
| 215 |
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vp->fl |= MT_N; |
| 216 |
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} |
| 217 |
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/* get (u,v) */ |
| 218 |
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if (what & MT_UV && pp->uv != NULL && pp->uv[vid][0]) { |
| 219 |
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for (i = 0; i < 2; i++) |
| 220 |
greg |
2.2 |
vp->uv[i] = mp->uvlim[0][i] + |
| 221 |
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(mp->uvlim[1][i] - mp->uvlim[0][i])* |
| 222 |
greg |
2.1 |
(pp->uv[vid][i] + .5)*(1./4294967296.); |
| 223 |
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vp->fl |= MT_UV; |
| 224 |
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} |
| 225 |
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return(vp->fl); |
| 226 |
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} |
| 227 |
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| 228 |
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| 229 |
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int |
| 230 |
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getmeshtri(tv, mp, ti, what) /* get triangle vertices */ |
| 231 |
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MESHVERT tv[3]; |
| 232 |
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MESH *mp; |
| 233 |
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OBJECT ti; |
| 234 |
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int what; |
| 235 |
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{ |
| 236 |
|
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int4 tvid[3]; |
| 237 |
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| 238 |
|
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if (!getmeshtrivid(tvid, mp, ti)) |
| 239 |
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return(0); |
| 240 |
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| 241 |
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getmeshvert(&tv[0], mp, tvid[0], what); |
| 242 |
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getmeshvert(&tv[1], mp, tvid[1], what); |
| 243 |
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getmeshvert(&tv[2], mp, tvid[2], what); |
| 244 |
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| 245 |
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return(tv[0].fl & tv[1].fl & tv[2].fl); |
| 246 |
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} |
| 247 |
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| 248 |
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| 249 |
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int4 |
| 250 |
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addmeshvert(mp, vp) /* find/add a mesh vertex */ |
| 251 |
|
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register MESH *mp; |
| 252 |
|
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MESHVERT *vp; |
| 253 |
|
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{ |
| 254 |
|
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LUTAB *ltp; |
| 255 |
|
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LUENT *lvp; |
| 256 |
|
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MCVERT cv; |
| 257 |
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register int i; |
| 258 |
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| 259 |
|
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if (!(vp->fl & MT_V)) |
| 260 |
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return(-1); |
| 261 |
|
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/* encode vertex */ |
| 262 |
|
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for (i = 0; i < 3; i++) { |
| 263 |
|
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if (vp->v[i] < mp->mcube.cuorg[i]) |
| 264 |
|
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return(-1); |
| 265 |
|
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if (vp->v[i] >= mp->mcube.cuorg[i] + mp->mcube.cusize) |
| 266 |
|
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return(-1); |
| 267 |
|
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cv.xyz[i] = (uint4)(4294967296. * |
| 268 |
|
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(vp->v[i] - mp->mcube.cuorg[i]) / |
| 269 |
|
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mp->mcube.cusize); |
| 270 |
|
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} |
| 271 |
|
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if (vp->fl & MT_N) |
| 272 |
|
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cv.norm = encodedir(vp->n); |
| 273 |
|
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if (vp->fl & MT_UV) |
| 274 |
|
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for (i = 0; i < 2; i++) { |
| 275 |
greg |
2.2 |
if (vp->uv[i] <= mp->uvlim[0][i]) |
| 276 |
greg |
2.1 |
return(-1); |
| 277 |
greg |
2.2 |
if (vp->uv[i] >= mp->uvlim[1][i]) |
| 278 |
greg |
2.1 |
return(-1); |
| 279 |
|
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cv.uv[i] = (uint4)(4294967296. * |
| 280 |
greg |
2.2 |
(vp->uv[i] - mp->uvlim[0][i]) / |
| 281 |
|
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(mp->uvlim[1][i] - mp->uvlim[0][i])); |
| 282 |
greg |
2.1 |
} |
| 283 |
|
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cv.fl = vp->fl; |
| 284 |
|
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ltp = (LUTAB *)mp->cdata; /* get lookup table */ |
| 285 |
|
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if (ltp == NULL) { |
| 286 |
|
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ltp = (LUTAB *)calloc(1, sizeof(LUTAB)); |
| 287 |
|
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if (ltp == NULL) |
| 288 |
|
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goto nomem; |
| 289 |
|
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ltp->hashf = cvhash; |
| 290 |
|
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ltp->keycmp = cvcmp; |
| 291 |
|
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ltp->freek = free; |
| 292 |
|
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if (!lu_init(ltp, 50000)) |
| 293 |
|
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goto nomem; |
| 294 |
|
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mp->cdata = (char *)ltp; |
| 295 |
|
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} |
| 296 |
|
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/* find entry */ |
| 297 |
|
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lvp = lu_find(ltp, (char *)&cv); |
| 298 |
|
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if (lvp == NULL) |
| 299 |
|
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goto nomem; |
| 300 |
|
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if (lvp->key == NULL) { |
| 301 |
|
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lvp->key = (char *)malloc(sizeof(MCVERT)+sizeof(int4)); |
| 302 |
|
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bcopy((void *)&cv, (void *)lvp->key, sizeof(MCVERT)); |
| 303 |
|
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} |
| 304 |
|
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if (lvp->data == NULL) { /* new vertex */ |
| 305 |
|
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register MESHPATCH *pp; |
| 306 |
|
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if (mp->npatches <= 0) { |
| 307 |
|
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mp->patch = (MESHPATCH *)calloc(MPATCHBLKSIZ, |
| 308 |
|
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sizeof(MESHPATCH)); |
| 309 |
|
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if (mp->patch == NULL) |
| 310 |
|
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goto nomem; |
| 311 |
|
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mp->npatches = 1; |
| 312 |
|
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} else if (mp->patch[mp->npatches-1].nverts >= 256) { |
| 313 |
|
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if (mp->npatches % MPATCHBLKSIZ == 0) { |
| 314 |
|
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mp->patch = (MESHPATCH *)realloc( |
| 315 |
|
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(void *)mp->patch, |
| 316 |
|
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(mp->npatches + MPATCHBLKSIZ)* |
| 317 |
|
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sizeof(MESHPATCH)); |
| 318 |
|
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bzero((void *)(mp->patch + mp->npatches), |
| 319 |
|
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MPATCHBLKSIZ*sizeof(MESHPATCH)); |
| 320 |
|
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} |
| 321 |
greg |
2.2 |
if (mp->npatches++ >= 1L<<22) |
| 322 |
greg |
2.1 |
error(INTERNAL, "too many mesh patches"); |
| 323 |
|
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} |
| 324 |
|
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pp = &mp->patch[mp->npatches-1]; |
| 325 |
|
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if (pp->xyz == NULL) { |
| 326 |
|
|
pp->xyz = (uint4 (*)[3])calloc(256, 3*sizeof(int4)); |
| 327 |
|
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if (pp->xyz == NULL) |
| 328 |
|
|
goto nomem; |
| 329 |
|
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} |
| 330 |
|
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for (i = 0; i < 3; i++) |
| 331 |
|
|
pp->xyz[pp->nverts][i] = cv.xyz[i]; |
| 332 |
|
|
if (cv.fl & MT_N) { |
| 333 |
|
|
if (pp->norm == NULL) { |
| 334 |
|
|
pp->norm = (int4 *)calloc(256, sizeof(int4)); |
| 335 |
|
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if (pp->norm == NULL) |
| 336 |
|
|
goto nomem; |
| 337 |
|
|
} |
| 338 |
|
|
pp->norm[pp->nverts] = cv.norm; |
| 339 |
|
|
} |
| 340 |
|
|
if (cv.fl & MT_UV) { |
| 341 |
|
|
if (pp->uv == NULL) { |
| 342 |
|
|
pp->uv = (uint4 (*)[2])calloc(256, |
| 343 |
|
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2*sizeof(uint4)); |
| 344 |
|
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if (pp->uv == NULL) |
| 345 |
|
|
goto nomem; |
| 346 |
|
|
} |
| 347 |
|
|
for (i = 0; i < 2; i++) |
| 348 |
|
|
pp->uv[pp->nverts][i] = cv.uv[i]; |
| 349 |
|
|
} |
| 350 |
|
|
pp->nverts++; |
| 351 |
|
|
lvp->data = lvp->key + sizeof(MCVERT); |
| 352 |
|
|
*(int4 *)lvp->data = (mp->npatches-1) << 8 | (pp->nverts-1); |
| 353 |
|
|
} |
| 354 |
|
|
return(*(int4 *)lvp->data); |
| 355 |
|
|
nomem: |
| 356 |
|
|
error(SYSTEM, "out of memory in addmeshvert"); |
| 357 |
|
|
return(-1); |
| 358 |
|
|
} |
| 359 |
|
|
|
| 360 |
|
|
|
| 361 |
|
|
OBJECT |
| 362 |
|
|
addmeshtri(mp, tv) /* add a new mesh triangle */ |
| 363 |
|
|
MESH *mp; |
| 364 |
|
|
MESHVERT tv[3]; |
| 365 |
|
|
{ |
| 366 |
|
|
int4 vid[3], t; |
| 367 |
|
|
int pn[3], i; |
| 368 |
|
|
register MESHPATCH *pp; |
| 369 |
|
|
|
| 370 |
|
|
if (!(tv[0].fl & tv[1].fl & tv[2].fl & MT_V)) |
| 371 |
|
|
return(OVOID); |
| 372 |
|
|
/* find/allocate patch vertices */ |
| 373 |
|
|
for (i = 0; i < 3; i++) { |
| 374 |
|
|
if ((vid[i] = addmeshvert(mp, &tv[i])) < 0) |
| 375 |
|
|
return(OVOID); |
| 376 |
|
|
pn[i] = vid[i] >> 8; |
| 377 |
|
|
} |
| 378 |
|
|
/* assign triangle */ |
| 379 |
|
|
if (pn[0] == pn[1] && pn[1] == pn[2]) { /* local case */ |
| 380 |
|
|
pp = &mp->patch[pn[0]]; |
| 381 |
|
|
if (pp->tri == NULL) { |
| 382 |
|
|
pp->tri = (struct PTri *)malloc( |
| 383 |
|
|
512*sizeof(struct PTri)); |
| 384 |
|
|
if (pp->tri == NULL) |
| 385 |
|
|
goto nomem; |
| 386 |
|
|
} |
| 387 |
greg |
2.2 |
if (pp->ntris < 512) { |
| 388 |
|
|
pp->tri[pp->ntris].v1 = vid[0] & 0xff; |
| 389 |
|
|
pp->tri[pp->ntris].v2 = vid[1] & 0xff; |
| 390 |
|
|
pp->tri[pp->ntris].v3 = vid[2] & 0xff; |
| 391 |
|
|
return(pn[0] << 10 | pp->ntris++); |
| 392 |
|
|
} |
| 393 |
greg |
2.1 |
} |
| 394 |
|
|
if (pn[0] == pn[1]) { |
| 395 |
greg |
2.2 |
t = vid[2]; vid[2] = vid[1]; vid[1] = vid[0]; vid[0] = t; |
| 396 |
|
|
i = pn[2]; pn[2] = pn[1]; pn[1] = pn[0]; pn[0] = i; |
| 397 |
greg |
2.1 |
} else if (pn[0] == pn[2]) { |
| 398 |
greg |
2.2 |
t = vid[0]; vid[0] = vid[1]; vid[1] = vid[2]; vid[2] = t; |
| 399 |
|
|
i = pn[0]; pn[0] = pn[1]; pn[1] = pn[2]; pn[2] = i; |
| 400 |
greg |
2.1 |
} |
| 401 |
|
|
if (pn[1] == pn[2]) { /* single link */ |
| 402 |
|
|
pp = &mp->patch[pn[1]]; |
| 403 |
|
|
if (pp->j1tri == NULL) { |
| 404 |
|
|
pp->j1tri = (struct PJoin1 *)malloc( |
| 405 |
|
|
256*sizeof(struct PJoin1)); |
| 406 |
|
|
if (pp->j1tri == NULL) |
| 407 |
|
|
goto nomem; |
| 408 |
|
|
} |
| 409 |
greg |
2.2 |
if (pp->nj1tris < 256) { |
| 410 |
|
|
pp->j1tri[pp->nj1tris].v1j = vid[0]; |
| 411 |
|
|
pp->j1tri[pp->nj1tris].v2 = vid[1] & 0xff; |
| 412 |
|
|
pp->j1tri[pp->nj1tris].v3 = vid[2] & 0xff; |
| 413 |
|
|
return(pn[1] << 10 | 0x200 | pp->nj1tris++); |
| 414 |
|
|
} |
| 415 |
greg |
2.1 |
} |
| 416 |
|
|
/* double link */ |
| 417 |
|
|
pp = &mp->patch[pn[2]]; |
| 418 |
|
|
if (pp->j2tri == NULL) { |
| 419 |
|
|
pp->j2tri = (struct PJoin2 *)malloc( |
| 420 |
|
|
256*sizeof(struct PJoin2)); |
| 421 |
|
|
if (pp->j2tri == NULL) |
| 422 |
|
|
goto nomem; |
| 423 |
|
|
} |
| 424 |
|
|
if (pp->nj2tris >= 256) |
| 425 |
greg |
2.2 |
error(INTERNAL, "too many patch triangles in addmeshtri"); |
| 426 |
|
|
pp->j2tri[pp->nj2tris].v1j = vid[0]; |
| 427 |
|
|
pp->j2tri[pp->nj2tris].v2j = vid[1]; |
| 428 |
greg |
2.1 |
pp->j2tri[pp->nj2tris].v3 = vid[2] & 0xff; |
| 429 |
|
|
return(pn[2] << 10 | 0x300 | pp->nj2tris++); |
| 430 |
|
|
nomem: |
| 431 |
|
|
error(SYSTEM, "out of memory in addmeshtri"); |
| 432 |
|
|
return(OVOID); |
| 433 |
|
|
} |
| 434 |
|
|
|
| 435 |
|
|
|
| 436 |
|
|
static void |
| 437 |
|
|
tallyoctree(ot, ecp, lcp, ocp) /* tally octree size */ |
| 438 |
|
|
OCTREE ot; |
| 439 |
|
|
int *ecp, *lcp, *ocp; |
| 440 |
|
|
{ |
| 441 |
|
|
int i; |
| 442 |
|
|
|
| 443 |
|
|
if (isempty(ot)) { |
| 444 |
|
|
(*ecp)++; |
| 445 |
|
|
return; |
| 446 |
|
|
} |
| 447 |
|
|
if (isfull(ot)) { |
| 448 |
|
|
OBJECT oset[MAXSET+1]; |
| 449 |
|
|
(*lcp)++; |
| 450 |
|
|
objset(oset, ot); |
| 451 |
|
|
*ocp += oset[0]; |
| 452 |
|
|
return; |
| 453 |
|
|
} |
| 454 |
|
|
for (i = 0; i < 8; i++) |
| 455 |
|
|
tallyoctree(octkid(ot, i), ecp, lcp, ocp); |
| 456 |
|
|
} |
| 457 |
|
|
|
| 458 |
|
|
|
| 459 |
|
|
void |
| 460 |
|
|
printmeshstats(ms, fp) /* print out mesh statistics */ |
| 461 |
|
|
MESH *ms; |
| 462 |
|
|
FILE *fp; |
| 463 |
|
|
{ |
| 464 |
|
|
int lfcnt=0, lecnt=0, locnt=0; |
| 465 |
|
|
int vcnt=0, ncnt=0, uvcnt=0; |
| 466 |
|
|
int nscnt=0, uvscnt=0; |
| 467 |
|
|
int tcnt=0, t1cnt=0, t2cnt=0; |
| 468 |
|
|
int i, j; |
| 469 |
|
|
|
| 470 |
|
|
tallyoctree(ms->mcube.cutree, &lecnt, &lfcnt, &locnt); |
| 471 |
|
|
for (i = 0; i < ms->npatches; i++) { |
| 472 |
|
|
register MESHPATCH *pp = &ms->patch[i]; |
| 473 |
|
|
vcnt += pp->nverts; |
| 474 |
|
|
if (pp->norm != NULL) { |
| 475 |
|
|
for (j = pp->nverts; j--; ) |
| 476 |
|
|
if (pp->norm[j]) |
| 477 |
|
|
ncnt++; |
| 478 |
|
|
nscnt += pp->nverts; |
| 479 |
|
|
} |
| 480 |
|
|
if (pp->uv != NULL) { |
| 481 |
|
|
for (j = pp->nverts; j--; ) |
| 482 |
|
|
if (pp->uv[j][0]) |
| 483 |
|
|
uvcnt++; |
| 484 |
|
|
uvscnt += pp->nverts; |
| 485 |
|
|
} |
| 486 |
|
|
tcnt += pp->ntris; |
| 487 |
|
|
t1cnt += pp->nj1tris; |
| 488 |
|
|
t2cnt += pp->nj2tris; |
| 489 |
|
|
} |
| 490 |
|
|
fprintf(fp, "Mesh statistics:\n"); |
| 491 |
|
|
fprintf(fp, "\t%d patches (%.2f MBytes)\n", ms->npatches, |
| 492 |
|
|
(ms->npatches*sizeof(MESHPATCH) + |
| 493 |
|
|
vcnt*3*sizeof(uint4) + |
| 494 |
|
|
nscnt*sizeof(int4) + |
| 495 |
|
|
uvscnt*2*sizeof(uint4) + |
| 496 |
|
|
tcnt*sizeof(struct PTri) + |
| 497 |
|
|
t1cnt*sizeof(struct PJoin1) + |
| 498 |
|
|
t2cnt*sizeof(struct PJoin2))/(1024.*1024.)); |
| 499 |
|
|
fprintf(fp, "\t%d vertices (%.1f%% w/ normals, %.1f%% w/ uv)\n", |
| 500 |
|
|
vcnt, 100.*ncnt/vcnt, 100.*uvcnt/vcnt); |
| 501 |
|
|
fprintf(fp, "\t%d triangles (%.1f%% local, %.1f%% joiner)\n", |
| 502 |
|
|
tcnt+t1cnt+t2cnt, |
| 503 |
|
|
100.*tcnt/(tcnt+t1cnt+t2cnt), |
| 504 |
|
|
100.*t1cnt/(tcnt+t1cnt+t2cnt)); |
| 505 |
|
|
fprintf(fp, |
| 506 |
|
|
"\t%d leaves in octree (%.1f%% empty, %.2f avg. set size)\n", |
| 507 |
|
|
lfcnt+lecnt, 100.*lecnt/(lfcnt+lecnt), |
| 508 |
|
|
(double)locnt/lfcnt); |
| 509 |
|
|
} |
| 510 |
|
|
|
| 511 |
|
|
|
| 512 |
|
|
void |
| 513 |
|
|
freemesh(ms) /* free mesh data */ |
| 514 |
|
|
MESH *ms; |
| 515 |
|
|
{ |
| 516 |
|
|
MESH mhead; |
| 517 |
|
|
MESH *msp; |
| 518 |
|
|
|
| 519 |
|
|
if (ms == NULL) |
| 520 |
|
|
return; |
| 521 |
|
|
if (ms->nref <= 0) |
| 522 |
|
|
error(CONSISTENCY, "unreferenced mesh in freemesh"); |
| 523 |
|
|
ms->nref--; |
| 524 |
|
|
if (ms->nref) /* still in use */ |
| 525 |
|
|
return; |
| 526 |
|
|
/* else remove from list */ |
| 527 |
|
|
mhead.next = mlist; |
| 528 |
|
|
for (msp = &mhead; msp->next != NULL; msp = msp->next) |
| 529 |
|
|
if (msp->next == ms) { |
| 530 |
|
|
msp->next = ms->next; |
| 531 |
|
|
ms->next = NULL; |
| 532 |
|
|
break; |
| 533 |
|
|
} |
| 534 |
|
|
if (ms->next != NULL) /* can't be in list anymore */ |
| 535 |
|
|
error(CONSISTENCY, "unlisted mesh in freemesh"); |
| 536 |
|
|
mlist = mhead.next; |
| 537 |
|
|
/* free mesh data */ |
| 538 |
|
|
freestr(ms->name); |
| 539 |
|
|
octfree(ms->mcube.cutree); |
| 540 |
|
|
if (ms->cdata != NULL) |
| 541 |
|
|
lu_done((LUTAB *)ms->cdata); |
| 542 |
|
|
if (ms->npatches > 0) { |
| 543 |
|
|
register MESHPATCH *pp = ms->patch + ms->npatches; |
| 544 |
|
|
while (pp-- > ms->patch) { |
| 545 |
|
|
if (pp->j2tri != NULL) |
| 546 |
|
|
free((void *)pp->j2tri); |
| 547 |
|
|
if (pp->j1tri != NULL) |
| 548 |
|
|
free((void *)pp->j1tri); |
| 549 |
|
|
if (pp->tri != NULL) |
| 550 |
|
|
free((void *)pp->tri); |
| 551 |
|
|
if (pp->uv != NULL) |
| 552 |
|
|
free((void *)pp->uv); |
| 553 |
|
|
if (pp->norm != NULL) |
| 554 |
|
|
free((void *)pp->norm); |
| 555 |
|
|
if (pp->xyz != NULL) |
| 556 |
|
|
free((void *)pp->xyz); |
| 557 |
|
|
} |
| 558 |
|
|
free((void *)ms->patch); |
| 559 |
|
|
} |
| 560 |
|
|
free((void *)ms); |
| 561 |
|
|
} |
| 562 |
|
|
|
| 563 |
|
|
|
| 564 |
|
|
void |
| 565 |
|
|
freemeshinst(o) /* free mesh instance */ |
| 566 |
|
|
OBJREC *o; |
| 567 |
|
|
{ |
| 568 |
|
|
if (o->os == NULL) |
| 569 |
|
|
return; |
| 570 |
|
|
freemesh((*(MESHINST *)o->os).msh); |
| 571 |
|
|
free((void *)o->os); |
| 572 |
|
|
o->os = NULL; |
| 573 |
|
|
} |
