// Apply the necessary matrices to the vertices in the buffer
private void Prepare(List <Vector> vertexBuffer, Matrix modelMatrix)
{
vb.Clear();
vb.AddRange(vertexBuffer);
for (int i = 0; i < vb.Count; i++)
{
var temp = new Matrix(vb[i]);
temp = modelMatrix * temp;
temp = viewMatrix * temp;
temp = Matrix.CreateWeakPerspective(d, temp.e[2, 0]) * temp;
temp.Inverse();
vb[i] = temp.ToVector();
}
// Viewport Transformation
TransformVertices(viewPort, vb);
}
