/// <summary>
/// Prepare the EffectParameterUpdater for the effect instance.
/// </summary>
/// <param name="effectInstance">The effect instance.</param>
private void PrepareUpdater(DynamicEffectInstance effectInstance)
{
parameterCollections.Clear(true);
parameterCollections.Add(effectInstance.Effect.CompilationParameters);
effectInstance.FillParameterCollections(parameterCollections);
parameterCollections.Add(GraphicsDevice.Parameters);
updater.Update(effectInstance.UpdaterDefinition, parameterCollections.Items, parameterCollections.Count);
}
/// <summary>
/// Update a dynamic effect instance based on its parameters.
/// </summary>
/// <param name="effectInstance">A dynmaic effect instance</param>
/// <returns><c>true</c> if the effect was recomiled on the effect instance, <c>false</c> otherwise.</returns>
public bool Update(DynamicEffectInstance effectInstance)
{
bool effectChanged = false;
if (effectInstance.Effect == null || !EffectSystem.IsValid(effectInstance.Effect) || HasCollectionChanged(effectInstance))
{
CreateEffect(effectInstance);
effectChanged = true;
}
return(effectChanged);
}
private void CreateEffect(DynamicEffectInstance effectInstance)
{
var compilerParameters = new CompilerParameters();
parameterCollections.Clear(true);
effectInstance.FillParameterCollections(parameterCollections);
foreach (var parameterCollection in parameterCollections)
{
if (parameterCollection != null)
{
foreach (var parameter in parameterCollection.InternalValues)
{
compilerParameters.SetObject(parameter.Key, parameter.Value.Object);
}
}
}
foreach (var parameter in GraphicsDevice.Parameters.InternalValues)
{
compilerParameters.SetObject(parameter.Key, parameter.Value.Object);
}
// Compile shader
// possible exception in LoadEffect
var effect = EffectSystem.LoadEffect(EffectName, compilerParameters);
if (!ReferenceEquals(effect, effectInstance.Effect))
{
// Copy back parameters set on previous effect to new effect
if (effectInstance.Effect != null)
{
foreach (var parameter in effectInstance.Effect.Parameters.InternalValues)
{
effect.Parameters.SetObject(parameter.Key, parameter.Value.Object);
}
}
effectInstance.Effect = effect;
effectInstance.UpdaterDefinition = new EffectParameterUpdaterDefinition(effect);
}
else
{
// Same effect than previous one
effectInstance.UpdaterDefinition.UpdateCounter(effect.CompilationParameters);
}
UpdateLevels(effectInstance);
updater.UpdateCounters(effectInstance.UpdaterDefinition);
}
/// <summary>
/// Update a dynamic effect instance based on its parameters.
/// </summary>
/// <param name="effectInstance">A dynmaic effect instance</param>
/// <returns><c>true</c> if the effect was recomiled on the effect instance, <c>false</c> otherwise.</returns>
public bool Update(DynamicEffectInstance effectInstance)
{
bool effectChanged = false;
if (effectInstance.Effect != null && effectInstance.Effect.Changed)
{
effectInstance.UpdaterDefinition.Initialize(effectInstance.Effect);
UpdateLevels(effectInstance);
effectChanged = true;
}
if (effectInstance.Effect == null || HasCollectionChanged(effectInstance))
{
CreateEffect(effectInstance);
effectChanged = true;
}
return(effectChanged);
}
private void UpdateLevels(DynamicEffectInstance effectInstance)
{
PrepareUpdater(effectInstance);
updater.ComputeLevels(effectInstance.UpdaterDefinition);
}
private bool HasCollectionChanged(DynamicEffectInstance effectInstance)
{
PrepareUpdater(effectInstance);
return(updater.HasChanged(effectInstance.UpdaterDefinition));
}
