/// <summary>
/// Called when the effect technique and parameter bindings should be initialized.
/// </summary>
/// <param name="graphicsService">The graphics service.</param>
/// <param name="opaqueData">The opaque data. Can be <see langword="null"/>.</param>
/// <remarks>
/// <para>
/// <strong>Notes to Inheritors:</strong> Derived classes can override this method to create
/// custom parameter bindings. If the derived class does not initialize all parameter bindings
/// then it should call the base implementation of <see cref="OnInitializeBindings"/> to
/// initialize the remaining bindings.
/// </para>
/// <para>
/// The method is called by the constructor of the base class. This means that derived classes
/// may not be initialized yet!
/// </para>
/// </remarks>
protected virtual void OnInitializeBindings(IGraphicsService graphicsService, IDictionary <string, object> opaqueData)
{
if (TechniqueBinding == null)
{
TechniqueBinding = EffectEx.TechniqueBinding.Clone();
}
EffectHelper.InitializeParameterBindings(graphicsService, EffectEx, opaqueData, ParameterBindings);
}
/// <summary>
/// Initializes the <see cref="EffectEx"/>.
/// </summary>
/// <param name="graphicsService">The graphics service.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="graphicsService"/> is <see langword="null"/>.
/// </exception>
protected override void Initialize(IGraphicsService graphicsService)
{
if (graphicsService == null)
{
throw new ArgumentNullException("graphicsService");
}
var effect = Resource;
// When an Effect is used the original values of the effect parameters, as
// specified in the .fx file, are lost. --> Store values in dictionary.
OriginalParameterValues = EffectHelper.GetParameterValues(effect);
TechniqueDescriptions = new EffectTechniqueDescriptionCollection(graphicsService, effect);
TechniqueBinding = EffectHelper.CreateTechniqueBinding(graphicsService, effect);
ParameterDescriptions = new EffectParameterDescriptionCollection(graphicsService, effect);
ParameterBindings = new EffectParameterBindingCollection(EffectParameterHint.Any);
EffectHelper.InitializeParameterBindings(graphicsService, this, null, ParameterBindings);
}