/// <summary>
/// Initializes a new instance of the ExtendedModel class.
/// </summary>
/// <param name="content">The ContentManager to use to load the asset.</param>
/// <param name="assetName">The name of the asset to load.</param>
/// <exception cref="InvalidOperationException">Vertex data missing or in invalid format.</exception>
private ExtendedModel(PackFileContentManager content, string assetName)
{
this.model = content.Load<Model>(assetName);
try
{
if (this.model.Tag != null && this.model.Tag is Vector3[])
{
this.vertices = (Vector3[])this.model.Tag;
}
else
{
throw new InvalidOperationException(Resources.VertexDataMissingInvalid);
}
this.BoundingSphere = BoundingSphere.CreateFromPoints(this.vertices);
this.BoundingBox = BoundingBox.CreateFromPoints(this.vertices);
}
finally
{
this.model.Tag = null;
}
ExtendedModel.cache.Add(assetName, this);
}
