/// <summary>
/// Refresh the internal states when a model changes.
/// </summary>
private void OnInitialized()
{
skeleton = null;
geometryPositions = null;
geometryIndices = null;
animations = null;
boundingBox = new BoundingBox();
if (orientedBoundingBoxOverride.HasValue)
{
OrientedBoundingBox = orientedBoundingBoxOverride.Value;
}
else
{
orientedBoundingBox = new BoundingBox();
}
if (source != null)
{
if (source.Meshes.Count <= 0 || source.Meshes[0].MeshParts.Count <= 0 || source.Meshes[0].MeshParts[0].VertexBuffer == null)
{
throw new ArgumentException("The input model is must have at least 1 valid mesh part.");
}
// Initialize bounds
if (!orientedBoundingBoxOverride.HasValue)
{
orientedBoundingBox = source.ComputeBoundingBox();
}
boundingBox = orientedBoundingBox.CreateAxisAligned(AbsoluteTransform);
// Initialize animations
skeleton = new ModelSkeleton(source);
IsSkinned = source.IsSkinned();
var animationNames = source.GetAnimations();
if (animationNames.Count > 0)
{
animations = new AnimationPlayer();
animationNames.ForEach(anim => animations.Animations.Add(anim, new BoneAnimation(Skeleton, source.GetAnimation(anim))));
animations.Play();
}
// Initialize parts
var iPart = 0;
foreach (var mesh in source.Meshes)
{
foreach (var part in mesh.MeshParts)
{
if (modelMeshes.Count <= iPart)
{
modelMeshes.Add(new ModelMesh());
}
if (modelMeshes[iPart] == null)
{
modelMeshes[iPart] = new ModelMesh();
}
modelMeshes[iPart].Attach(this, mesh, part);
iPart++;
}
}
// Populate child nodes
children.Clear();
for (int i = 0; i < modelMeshes.Count; i++)
{
children.Add(modelMeshes[i]);
}
if (attachments != null)
{
for (int i = 0; i < attachments.Count; ++i)
{
if (attachments[i].Transformable != null)
{
children.Add(attachments[i].Transformable);
}
}
}
UpdateBoneTransforms();
}
}