public OrientedPoint GetProjectionAndTangent(Vector3 worldPos, ref int st, ref int index)
{
int initialStretch = st;
OrientedPoint orientedPoint = new OrientedPoint(Vector3.zero, Quaternion.identity);
float minDst = float.MaxValue;
for (int i = st; i < NStretches; i++)
{
Stretch s = GetNStretch(i);
bool fwd = IsStretchNForward(i);
if (index == -1)
{
if (fwd)
{
index = 0;
}
else
{
index = s.Vertices.Length - 1;
}
}
int temp = index;
if (st != initialStretch)
{
temp = fwd ? 0 : s.Vertices.Length - 1;
}
OrientedPoint op = s.GetClosestOrientedPoint(worldPos, fwd, ref temp);
float dst = Vector3.SqrMagnitude(op.Pos - worldPos);
if (dst < minDst)
{
orientedPoint = op;
minDst = dst;
st = i;
index = temp;
}
else
{
break;
}
}
return(orientedPoint);
}
public OrientedPoint GetProjectionAndTangent(Vector3 worldPos)
{
OrientedPoint orientedPoint = new OrientedPoint(Vector3.zero, Quaternion.identity);
float minDst = float.MaxValue;
for (int i = 0; i < NStretches; i++)
{
Stretch s = GetNStretch(i);
bool fwd = IsStretchNForward(i);
OrientedPoint op = s.GetClosestOrientedPoint(worldPos, fwd);
float dst = Vector3.SqrMagnitude(op.Pos - worldPos);
if (dst < minDst)
{
orientedPoint = op;
minDst = dst;
}
else
{
break;
}
}
return(orientedPoint);
}