public static Model GetAfricanHeadModel()
{
var modelPath = Environment.CurrentDirectory + @"/Models/african_head/african_head.obj";
var texturePath = Environment.CurrentDirectory + @"/Models/african_head/textures/african_head_diffuse.png";
var normalMapPath = Environment.CurrentDirectory + @"/Models/african_head/textures/african_head_nm.png";
var specularMapPath = Environment.CurrentDirectory + @"/Models/african_head/textures/african_head_spec.png";
var m = ModelReader.Read(modelPath, texturePath, normalMapPath, specularMapPath);
return(m);
}