public World(Model model)
{
int a = 1;
for (int i = 0; i < numDivisions + 1; i++)
{
int numOcts = a;
OctreeReferences[i] = new List <int> [numOcts];
a *= 8;
}
Dictionary <string, object> tagData = (Dictionary <string, object>)model.Tag;
Vector3[] vertices = (Vector3[])tagData["Vertices"];
Primatives.Triangle[] triangles = new Primatives.Triangle[vertices.Length / 3];
int n = 0;
for (int i = 0; i < vertices.Length;)
{
Vector3 v1 = vertices[i++];
Vector3 v2 = vertices[i++];
Vector3 v3 = vertices[i++];
triangles[n++] = new Primatives.Triangle(v1, v2, v3);
}
octree = new Octree(new Primatives.TriangleMesh(triangles), numDivisions);
this.mesh = octree.OctTaggedMesh;
for (int i = 0; i < mesh.Triangles.Length; i++)
{
int octlet = mesh.Triangles[i].OctTag[0];
int level = mesh.Triangles[i].OctTag[1];
if (OctreeReferences[level][octlet] == null)
{
OctreeReferences[level][octlet] = new List <int>();
}
OctreeReferences[level][octlet].Add(i);
}
}
public float LineTriangle(Primatives.Triangle Triangle, Primatives.Line Line)
{
float x = -Vector3.Dot((Line.Vertices[0] - Triangle.Vertices[0]), Triangle.Normal) / Vector3.Dot(Line.Vertices[1] - Line.Vertices[0], Triangle.Normal);
if (x < 0 || x > 1)
{
return(-1);
}
else
{
Vector3 intersection = Line.Vertices[0] + x * Vector3.Normalize(Line.Vertices[1] - Line.Vertices[0]);
if (PointInTriangle(intersection, Triangle.Vertices[0], Triangle.Vertices[1], Triangle.Vertices[2]))
{
return(x);
}
else
{
return(-1);
}
}
}
public World(Model model)
{
int a = 1;
for (int i = 0; i < numDivisions + 1; i++)
{
int numOcts = a;
OctreeReferences[i] = new List<int>[numOcts];
a *= 8;
}
Dictionary<string, object> tagData = (Dictionary<string, object>)model.Tag;
Vector3[] vertices = (Vector3[])tagData["Vertices"];
Primatives.Triangle[] triangles = new Primatives.Triangle[vertices.Length / 3];
int n = 0;
for (int i = 0; i < vertices.Length; )
{
Vector3 v1 = vertices[i++];
Vector3 v2 = vertices[i++];
Vector3 v3 = vertices[i++];
triangles[n++] = new Primatives.Triangle(v1, v2, v3);
}
octree = new Octree(new Primatives.TriangleMesh(triangles), numDivisions);
this.mesh = octree.OctTaggedMesh;
for (int i = 0; i < mesh.Triangles.Length; i++)
{
int octlet = mesh.Triangles[i].OctTag[0];
int level = mesh.Triangles[i].OctTag[1];
if (OctreeReferences[level][octlet] == null)
{
OctreeReferences[level][octlet] = new List<int>();
}
OctreeReferences[level][octlet].Add(i);
}
}