Ejemplo n.º 1
0
    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);
    }
Ejemplo n.º 2
0
    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);
    }
Ejemplo n.º 3
0
    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);
    }