/// <summary>
/// Loads a pyramid for drawing.
/// </summary>
private void LoadPyramid()
{
const int low = 100;
const int medium = 200;
const int heigh = 300;
var v1 = new Vertex(low, 0, low);
var v2 = new Vertex(heigh, 0, low);
var v3 = new Vertex(low, 0, heigh);
var v4 = new Vertex(heigh, 0, heigh);
var v5 = new Vertex(medium, medium, medium);
var t1 = new Triangle(v1, v2, v5);
var t2 = new Triangle(v1, v3, v5);
var t3 = new Triangle(v2, v4, v5);
var t4 = new Triangle(v3, v4, v5);
_pyramidTriangles.Add(t1);
_pyramidTriangles.Add(t2);
_pyramidTriangles.Add(t3);
_pyramidTriangles.Add(t4);
}
/// <summary>
/// Converts a vertex into a 4-hight, 1-width matrix.
/// </summary>
/// <param name="vertex">The vertex to convert</param>
/// <returns>A Matrix[4, 1] version of the vertex.</returns>
public static Matrix VertexToMatrix(Vertex vertex)
{
var matrix = new Matrix(4, 1);
matrix[0, 0] = vertex.X;
matrix[1, 0] = vertex.Y;
matrix[2, 0] = vertex.Z;
matrix[3, 0] = vertex.W;
return matrix;
}
