private void CreateEffect() { effect = new Microsoft.Graphics.Canvas.Effects.GammaTransferEffect() { Name = EffectName, BlueExponent = 1.0f, GreenExponent = 1.0f, RedExponent = 1.0f, Source = new CompositionEffectSourceParameter(EffectSource) }; UpdateRedExponent(); effectFactory = compositor.CreateEffectFactory(effect, new[] { BlueExponentEffectPath, GreenExponentEffectPath, RedExponentEffectPath }); }