void rtbuild_add(RTBuilder *b, RayObject *o)
{
float bb[6];
assert( b->primitives.begin + b->primitives.maxsize != b->primitives.end );
INIT_MINMAX(bb, bb+3);
RE_rayobject_merge_bb(o, bb, bb+3);
/* skip objects with invalid bounding boxes, nan causes DO_MINMAX
to do nothing, so we get these invalid values. this shouldn't
happen usually, but bugs earlier in the pipeline can cause it. */
if(bb[0] > bb[3] || bb[1] > bb[4] || bb[2] > bb[5])
return;
/* skip objects with inf bounding boxes */
if(!finite(bb[0]) || !finite(bb[1]) || !finite(bb[2]))
return;
if(!finite(bb[3]) || !finite(bb[4]) || !finite(bb[5]))
return;
/* skip objects with zero bounding box, they are of no use, and
will give problems in rtbuild_heuristic_object_split later */
if(bb[0] == bb[3] && bb[1] == bb[4] && bb[2] == bb[5])
return;
copy_v3_v3(b->primitives.end->bb, bb);
copy_v3_v3(b->primitives.end->bb+3, bb+3);
b->primitives.end->obj = o;
b->primitives.end->cost = RE_rayobject_cost(o);
for(int i=0; i<3; i++)
{
*(b->sorted_end[i]) = b->primitives.end;
b->sorted_end[i]++;
}
b->primitives.end++;
}
static float RE_rayobject_instance_cost(RayObject *o)
{
InstanceRayObject *obj = (InstanceRayObject *)o;
return RE_rayobject_cost(obj->target) + RE_COST_INSTANCE;
}
