void BKE_mesh_boundbox_calc(Mesh *me, float r_loc[3], float r_size[3])
{
BoundBox *bb;
float min[3], max[3];
float mloc[3], msize[3];
if (me->bb == NULL) me->bb = MEM_callocN(sizeof(BoundBox), "boundbox");
bb = me->bb;
if (!r_loc) r_loc = mloc;
if (!r_size) r_size = msize;
INIT_MINMAX(min, max);
if (!BKE_mesh_minmax(me, min, max)) {
min[0] = min[1] = min[2] = -1.0f;
max[0] = max[1] = max[2] = 1.0f;
}
mid_v3_v3v3(r_loc, min, max);
r_size[0] = (max[0] - min[0]) / 2.0f;
r_size[1] = (max[1] - min[1]) / 2.0f;
r_size[2] = (max[2] - min[2]) / 2.0f;
BKE_boundbox_init_from_minmax(bb, min, max);
bb->flag &= ~BOUNDBOX_DIRTY;
}
static void boundbox_lattice(Object *ob)
{
BoundBox *bb;
Lattice *lt;
float min[3], max[3];
if (ob->bb == NULL)
ob->bb = MEM_mallocN(sizeof(BoundBox), "Lattice boundbox");
bb = ob->bb;
lt = ob->data;
INIT_MINMAX(min, max);
BKE_lattice_minmax_dl(ob, lt, min, max);
BKE_boundbox_init_from_minmax(bb, min, max);
}
/** Compute bounding box of all MetaElems/MetaBalls.
*
* Bounding box is computed from polygonized surface. Object *ob is
* basic MetaBall (usually with name Meta). All other MetaBalls (with
* names Meta.001, Meta.002, etc) are included in this Bounding Box.
*/
void BKE_mball_texspace_calc(Object *ob)
{
DispList *dl;
BoundBox *bb;
float *data, min[3], max[3] /*, loc[3], size[3] */;
int tot;
bool do_it = false;
if (ob->bb == NULL) ob->bb = MEM_callocN(sizeof(BoundBox), "mb boundbox");
bb = ob->bb;
/* Weird one, this. */
/* INIT_MINMAX(min, max); */
(min)[0] = (min)[1] = (min)[2] = 1.0e30f;
(max)[0] = (max)[1] = (max)[2] = -1.0e30f;
dl = ob->curve_cache->disp.first;
while (dl) {
tot = dl->nr;
if (tot) do_it = true;
data = dl->verts;
while (tot--) {
/* Also weird... but longer. From utildefines. */
minmax_v3v3_v3(min, max, data);
data += 3;
}
dl = dl->next;
}
if (!do_it) {
min[0] = min[1] = min[2] = -1.0f;
max[0] = max[1] = max[2] = 1.0f;
}
#if 0
loc[0] = (min[0] + max[0]) / 2.0f;
loc[1] = (min[1] + max[1]) / 2.0f;
loc[2] = (min[2] + max[2]) / 2.0f;
size[0] = (max[0] - min[0]) / 2.0f;
size[1] = (max[1] - min[1]) / 2.0f;
size[2] = (max[2] - min[2]) / 2.0f;
#endif
BKE_boundbox_init_from_minmax(bb, min, max);
}
