public Model3d Raycast(Ray3d ray)
{
if (m_octree != null)
{
// :: lets the compiler know to look outside class scope
return(Octree3d.Raycast(m_octree, ray));
}
Model3d result = null;
FloatL result_t = -1;
for (int i = 0, size = m_modleList.Count; i < size; ++i)
{
FloatL t = IntersectionTest3D.Ray3dWithModel3d(ray, m_modleList[i]);
if (result == null && t >= 0)
{
result = m_modleList[i];
result_t = t;
}
else if (result != null && t < result_t)
{
result = m_modleList[i];
result_t = t;
}
}
return(result);
}
public List <Model3d> Query(AABB3d aabb)
{
if (m_octree != null)
{
// :: lets the compiler know to look outside class scope
return(Octree3d.Query(m_octree, aabb));
}
List <Model3d> result = new List <Model3d>();
for (int i = 0, size = m_modleList.Count; i < size; ++i)
{
OBB3d bounds = m_modleList[i].GetOBB();
if (IntersectionTest3D.AABB3dWithOBB3d(aabb, bounds))
{
result.Add(m_modleList[i]);
}
}
return(result);
}
bool Accelerate(Vector3L position, FloatL size)
{
if (m_octree != null)
{
return(false);
}
Vector3L min = new Vector3L(position.x - size, position.y - size, position.z - size);
Vector3L max = new Vector3L(position.x + size, position.y + size, position.z + size);
// Construct tree root
m_octree = new OctreeNode();
m_octree.m_bounds = Mesh3d.FromMinMax(min, max);
m_octree.m_children = null;
for (int i = 0, size2 = m_modleList.Count; i < size2; ++i)
{
m_octree.m_models.Add(m_modleList[i]);
}
// Create tree
Octree3d.SplitTree(m_octree, 5);
return(true);
}