/// <summary>
/// Initializes a new instance of the <see cref="MeshNode"/> class.
/// </summary>
/// <param name="mesh">The <see cref="Mesh"/>.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="mesh"/> is <see langword="null"/>.
/// </exception>
public MeshNode(Mesh mesh)
{
if (mesh == null)
{
throw new ArgumentNullException("mesh");
}
IsRenderable = true;
CastsShadows = true;
_mesh = mesh;
_materialInstances = new MaterialInstanceCollection(_mesh.Materials);
_passHashes = _materialInstances.PassHashes;
SetHasAlpha();
// Ensure that MorphWeights are set. (Required for correct rendering.)
if (mesh.HasMorphTargets())
{
MorphWeights = new MorphWeightCollection(mesh);
}
// We do not call OnInitializeShape here because virtual methods should not be called
// in constructor.
Shape = mesh.BoundingShape;
}
/// <summary>
/// Initializes a new instance of the <see cref="MaterialInstanceCollection"/> class by cloning
/// the specified material instances.
/// </summary>
/// <param name="materials">The material instances to be cloned.</param>
internal MaterialInstanceCollection(MaterialInstanceCollection materials)
{
PassHashes = materials.PassHashes;
int numberOfMaterials = materials.Count;
_array = new MaterialInstance[numberOfMaterials];
for (int i = 0; i < numberOfMaterials; i++)
{
_array[i] = materials[i].Clone();
}
}
/// <summary>
/// Called when all fix-ups are executed and the asset is fully loaded.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="eventArgs">
/// The <see cref="EventArgs"/> instance containing the event data.
/// </param>
internal void OnAssetLoaded(object sender, EventArgs eventArgs)
{
// Meshes are shared resources, so they are loaded deferred.
// OnAssetLoaded is called when all shared resources are loaded.
_materialInstances = new MaterialInstanceCollection(Mesh.Materials);
_passHashes = _materialInstances.PassHashes;
SetHasAlpha();
// Ensure that MorphWeights are set. (Required for correct rendering.)
if (_mesh.HasMorphTargets())
{
MorphWeights = new MorphWeightCollection(_mesh);
}
OnInitializeShape();
// Note: The SkeletonPose is created by the ModelNode when the asset is loaded.
}
/// <inheritdoc/>
protected override void CloneCore(SceneNode source)
{
// Clone SceneNode properties.
base.CloneCore(source);
// Clone MeshNode properties.
var sourceTyped = (MeshNode)source;
_mesh = sourceTyped.Mesh;
_materialInstances = new MaterialInstanceCollection(sourceTyped.MaterialInstances);
_passHashes = _materialInstances.PassHashes;
if (sourceTyped.MorphWeights != null)
{
MorphWeights = sourceTyped.MorphWeights.Clone();
}
#if ANIMATION
if (sourceTyped.SkeletonPose != null)
{
_skeletonPose = sourceTyped.SkeletonPose.Clone();
}
#endif
}
public MaterialInstanceCollectionView(MaterialInstanceCollection collection)
{
_collection = collection;
}