protected override void OnAssetPropertyChanged(string propertyName, IGraphNode node, NodeIndex index, object oldValue, object newValue)
{
base.OnAssetPropertyChanged(propertyName, node, index, oldValue, newValue);
var memberNode = node as IMemberNode;
if (memberNode != null && !PropertyGraph.UpdatingPropertyFromBase && !UndoRedoService.UndoRedoInProgress)
{
// If Dither changed, clamp Quality to the new valid range
// Note: other part of the behavior is in GraphicsCompositorAssetNodeUpdater (hide Quality if Dither set to None)
// TODO: This should be moved to FXAA-specific code to be plugin-ready (asset property changed works only at asset level)
var ownerNode = memberNode.Parent;
if (typeof(FXAAEffect).IsAssignableFrom(ownerNode.Type) && propertyName == nameof(FXAAEffect.Dither))
{
var qualityNode = ownerNode[nameof(FXAAEffect.Quality)];
var dither = (FXAAEffect.DitherType)memberNode.Retrieve();
// Get new valid quality range
var(minQuality, maxQuality) = FXAAEffect.GetQualityRange(dither);
// Clamp and set it back (if different)
var quality = (int)qualityNode.Retrieve();
if (quality < minQuality)
{
qualityNode.Update(minQuality);
}
else if (quality > maxQuality)
{
qualityNode.Update(maxQuality);
}
}
}
}
public override void UpdateNode(INodePresenter node)
{
// Adjust Quality range depending on Dither mode
// Note: other part of the behavior is in GraphicsCompositorViewModel.OnAssetPropertyChanged (clamp Quality based on Dither)
var fxaaEffect = node.Value as FXAAEffect;
if (fxaaEffect != null)
{
var ditherNode = node[nameof(FXAAEffect.Dither)];
// If dither type changes, we will need to update quality sliders again
node.AddDependency(ditherNode, false);
// Adjust quality range according to dither level
var(minQuality, maxQuality) = FXAAEffect.GetQualityRange(fxaaEffect.Dither);
node[nameof(FXAAEffect.Quality)].AttachedProperties[NumericData.MinimumKey] = minQuality;
node[nameof(FXAAEffect.Quality)].AttachedProperties[NumericData.MaximumKey] = maxQuality;
// FXAA: Hide Quality if Dither is set to None (only 9 is a valid value)
if (fxaaEffect.Dither == FXAAEffect.DitherType.None)
{
node[nameof(FXAAEffect.Quality)].IsVisible = false;
}
}
}
private void CreateEffect()
{
Viewport viewport = _graphicsDevice.Viewport;
try // try to create a 9_3 shader.
{
fxaaGreenLumaLowEffect = new FXAAGreenLumaLowEffect(_graphicsDevice);
SetEffectParameters(fxaaGreenLumaLowEffect, 0.5f, viewport);
}
catch (Exception ex1) { }
#if (WINDOWS || W8_1 || W10)
try
{
if (_graphicsDevice.GraphicsProfile >= GraphicsProfile.HiDef)
{
fxaaGreenLumaMediumEffect = new FXAAGreenLumaMediumEffect(_graphicsDevice);
fxaaGreenLumaHighEffect = new FXAAGreenLumaHighEffect(_graphicsDevice);
SetEffectParameters(fxaaGreenLumaMediumEffect, 0.5f, viewport);
SetEffectParameters(fxaaGreenLumaHighEffect, 0.5f, viewport);
}
}
catch (Exception ex2) {}
#endif
return;
}
public void DrawRenderTarget(int antiAliasingLevel, Viewport viewport, bool clearRenderTarget)
{
FXAAEffect fxaaEffect = fxaaGreenLumaLowEffect;
#if (WINDOWS || W8_1 || W10)
if (antiAliasingLevel == 1)
{
fxaaEffect = fxaaGreenLumaLowEffect;
}
if (antiAliasingLevel == 2)
{
fxaaEffect = fxaaGreenLumaMediumEffect;
}
if (antiAliasingLevel == 3)
{
fxaaEffect = fxaaGreenLumaHighEffect;
}
#endif
fxaaEffect.AntialiasingEnabled = (antiAliasingLevel != 0);
if (clearRenderTarget)
{
_graphicsDevice.SetRenderTarget(null);
}
Rectangle srcRect;
srcRect = new Rectangle(0, 0, (int)(_renderTarget.Width), (int)(_renderTarget.Height));
Viewport oldViewport = _graphicsDevice.Viewport;
_graphicsDevice.Viewport = viewport;
Rectangle destRect = new Rectangle(0, 0, viewport.Width, viewport.Height);
fxaaEffect.CurrentTechnique.Passes[0].Apply();
_spriteBatch.Begin(SpriteSortMode.Immediate, BlendState.Opaque, SamplerState.LinearClamp, null, null, fxaaEffect);
_spriteBatch.Draw(_renderTarget, destRect, srcRect, Color.White);
_spriteBatch.End();
_graphicsDevice.Viewport = oldViewport;
}
private void SetEffectParameters(FXAAEffect effect, float N, Viewport viewport)
{
effect.SetDefaultParameters(viewport.Width, viewport.Height);
effect.AntialiasingEnabled = true;
}
