bool Sculptor::intersect(Array<int, VertexP> * d, const Ray & ray)
{
if(!d) return false;
const int ndst = m_active->vertices->size();
Vector3F pop;
float tt;
d->begin();
while(!d->end() ) {
Vector3F & p = *(d->value()->index->t1);
pop = ray.closetPointOnRay(p, &tt);
/// select here
if(p.distanceTo(pop) < selectRadius()) {
VertexP * vert = d->value();
float d = p.distanceTo(ray.m_origin);
m_active->updateMinDepth(d);
if(d - m_active->minDepth() < 2.f * selectRadius()) {
addToStage(vert);
addToActive(vert);
}
}
d->next();
}
return m_active->vertices->size() > ndst;
}
bool PlantSelection::touchCell(const Ray & incident, const sdb::Coord3 & c,
Vector3F & pnt)
{
sdb::Array<int, Plant> * cell = m_grid->findCell(c);
if(!cell) return false;
if(cell->isEmpty() ) return false;
float tt;
cell->begin();
while(!cell->end()) {
PlantData * d = cell->value()->index;
pnt = incident.closetPointOnRay(d->t1->getTranslation(), &tt );
if(tt < -1.f
&& pnt.distanceTo(d->t1->getTranslation() ) < m_radius)
return true;
cell->next();
}
return false;
}
