static bool rayObjClosestIntersect( const TRay &ray, const vector<TObject *> &objList,
TObject *&obj, float &distance ) {
// This routine intersects ray with all of the objects
// in the objList and returns the closest intersection
// distance and the interesting object, if there is one.
distance = INFINITE;
for ( vector<TObject *>::const_iterator iter = objList.begin();
iter != objList.end();
iter++ ) {
TObject *object = *iter;
#ifdef __DEBUG__
object->print("object in node");
#endif
TIntersection inter;
if ( object->primitive->intersectionRay( ray, inter ) ) { // if ray intersects object
#ifdef __DEBUG__
printf("distance: %5.5f\n", inter.distance );
#endif
if ( inter.distance < distance ) { // if this object is closest than previous
#ifdef __DEBUG__
printf("closer distance: %5.5f distance: %5.5f\n", inter.distance, distance );
#endif
distance = inter.distance; // store new distance and this object
obj = object;
}
}
#ifdef __DEBUG__
else
printf("no intersection with this object\n");
#endif
}
if ( distance < INFINITE ) { // if ray intersects at least one object
#ifdef __DEBUG__
printf("found an intersection\n" );
#endif
return true;
}
#ifdef __DEBUG__
printf("no intersection found in this node\n");
#endif
return false;
}
static bool rayObjIntersect( const TRay &ray, const vector<TObject *> &objList,
const float maxDist2, TObject *&obj ) {
// This routine intersects ray with all of the objects
// in the objList and returns the first intersected object
for ( vector<TObject *>::const_iterator iter = objList.begin();
iter != objList.end();
iter++ ) {
TObject *object = *iter;
#ifdef __DEBUG__
object->print("object in node");
#endif
if ( object->primitive->intersectsRay( ray, maxDist2 ) ) { // if ray intersects object
obj = object; // return this object
return true;
}
}
return false;
}