public override void UpdateParameters(ColorTransformContext context)
{
// TODO This could be put as part
double b = BlackPoint;
double c = CrossOver;
double w = WhitePoint;
double t = Toe;
double s = Shoulder;
double k = ((1 - t) * (c - b)) / ((1 - s) * (w - c) + (1 - t) * (c - b));
var toe = new Vector4(
(float)((k * (1 - t))),
(float)(-t),
(float)(k * (1 - t) * (-b)),
(float)(c - (1 - t) * b));
var shoulder = new Vector4(
(float)(((1 - k) + k * s)),
(float)(s),
(float)((1 - k) * (-c) + k * ((1 - s) * w - c)),
(float)((1 - s) * w - c));
// Don't call base, as we are rewriting all parameters for the shader
Parameters.Set(ToneMapMikeDayOperatorShaderKeys.ToeCoeffs, toe);
Parameters.Set(ToneMapMikeDayOperatorShaderKeys.ShoulderCoeffs, shoulder);
Parameters.Set(ToneMapMikeDayOperatorShaderKeys.MiddleCrossOver, CrossOver);
}
public override void UpdateParameters(ColorTransformContext context)
{
// TODO This could be put as part
double b = BlackPoint;
double c = CrossOver;
double w = WhitePoint;
double t = Toe;
double s = Shoulder;
double k = ((1 - t) * (c - b)) / ((1 - s) * (w - c) + (1 - t) * (c - b));
var toe = new Vector4(
(float)((k * (1 - t))),
(float)(-t),
(float)(k * (1 - t) * (-b)),
(float)(c - (1 - t) * b));
var shoulder = new Vector4(
(float)(((1 - k) + k * s)),
(float)(s),
(float)((1 - k) * (-c) + k * ((1 - s) * w - c)),
(float)((1 - s) * w - c));
// Don't call base, as we are rewriting all parameters for the shader
Parameters.Set(ToneMapMikeDayOperatorShaderKeys.ToeCoeffs, toe);
Parameters.Set(ToneMapMikeDayOperatorShaderKeys.ShoulderCoeffs, shoulder);
Parameters.Set(ToneMapMikeDayOperatorShaderKeys.MiddleCrossOver, CrossOver);
}
public override void UpdateParameters(ColorTransformContext context)
{
base.UpdateParameters(context);
Parameters.Set(VignettingShaderKeys.Amount, Amount);
Parameters.Set(VignettingShaderKeys.RadiusBegin, Radius);
Parameters.Set(VignettingShaderKeys.Color, Color.ToColorSpace(context.RenderContext.GraphicsDevice.ColorSpace));
}
public override void UpdateParameters(ColorTransformContext context)
{
base.UpdateParameters(context);
Parameters.Set(VignettingShaderKeys.Amount, Amount);
Parameters.Set(VignettingShaderKeys.RadiusBegin, Radius);
Parameters.Set(VignettingShaderKeys.Color, Color.ToColorSpace(context.RenderContext.GraphicsDevice.ColorSpace));
}
public override void UpdateParameters(ColorTransformContext context)
{
base.UpdateParameters(context);
Parameters.Set(VignettingShaderKeys.Amount, Amount);
Parameters.Set(VignettingShaderKeys.RadiusBegin, Radius);
Parameters.Set(VignettingShaderKeys.Color, Color);
}
public override void UpdateParameters(ColorTransformContext context)
{
base.UpdateParameters(context);
Parameters.Set(VignettingShaderKeys.Amount, Amount);
Parameters.Set(VignettingShaderKeys.RadiusBegin, Radius);
Parameters.Set(VignettingShaderKeys.Color, Color);
}
public override void UpdateParameters(ColorTransformContext context)
{
base.UpdateParameters(context);
if (Operator == null)
{
throw new InvalidOperationException("Operator cannot be null on this instance");
}
// Update the luminance
var elapsedTime = timer.Elapsed;
timer.Restart();
var luminanceResult = context.SharedParameters.Get(LuminanceEffect.LuminanceResult);
// Get the average luminance
float adaptedLum = luminanceResult.AverageLuminance;
if (TemporalAdaptation)
{
// Get adapted luminance
// From "Perceptual effects in real-time tone mapping" by Grzegorz Krawczyk, Karol Myszkowski, Hans-Peter Seidel, p. 3, Equation 5
adaptedLum = (float)(previousLuminance + (luminanceResult.AverageLuminance - previousLuminance) * (1.0 - Math.Exp(-elapsedTime.TotalSeconds * AdaptationRate)));
previousLuminance = adaptedLum;
}
if (AutoKeyValue)
{
// From "Perceptual effects in real-time tone mapping" by Grzegorz Krawczyk, Karol Myszkowski, Hans-Peter Seidel, p. 4, Equation 11
KeyValue = 1.03f - (2.0f / (2.0f + (float)Math.Log10(adaptedLum + 1)));
}
// Setup parameters
Parameters.Set(ToneMapShaderKeys.LuminanceTexture, luminanceResult.LocalTexture);
Parameters.Set(ToneMapShaderKeys.LuminanceAverageGlobal, (float)Math.Log(adaptedLum, 2));
Parameters.Set(ToneMapShaderKeys.Exposure, (float)Math.Pow(2.0, Exposure));
// Update operator parameters
Operator.UpdateParameters(context);
// Copy sub parameters from composition to this transform
foreach (var key in Operator.Parameters.Keys)
{
ParameterKey tonemapKey;
if (!tonemapKeys.TryGetValue(key, out tonemapKey))
{
tonemapKey = key.ComposeWith("ToneMapOperator");
tonemapKeys.Add(key, tonemapKey);
}
Operator.Parameters.CopySharedTo(key, tonemapKey, Parameters);
}
}
/// <inheritdoc/>
protected override void InitializeCore()
{
base.InitializeCore();
transformGroupEffect = new ImageEffectShader(colorTransformGroupEffectName);
transformGroupEffect.SharedParameterCollections.Add(Parameters);
transformGroupEffect.Initialize(Context);
// we are adding parameter collections after as transform parameters should override previous parameters
transformGroupEffect.ParameterCollections.Add(transformsParameters);
this.transformContext = new ColorTransformContext(this);
}
public override void UpdateParameters(ColorTransformContext context)
{
base.UpdateParameters(context);
Parameters.Set(FilmGrainShaderKeys.Amount, Amount * 4 * 0.02f);
Parameters.Set(FilmGrainShaderKeys.GrainSize, GrainSize);
Parameters.Set(FilmGrainShaderKeys.LuminanceFactor, LuminanceFactor);
if (Animate)
{
time += 0.1f;
if (time > 100f) time = 1f;
}
Parameters.Set(FilmGrainShaderKeys.Time, time);
}
public override void UpdateParameters(ColorTransformContext context)
{
base.UpdateParameters(context);
Parameters.Set(FilmGrainShaderKeys.Amount, Amount * 4 * 0.02f);
Parameters.Set(FilmGrainShaderKeys.GrainSize, GrainSize);
Parameters.Set(FilmGrainShaderKeys.LuminanceFactor, LuminanceFactor);
if (Animate)
{
time += 0.1f;
if (time > 100f)
{
time = 1f;
}
}
Parameters.Set(FilmGrainShaderKeys.Time, time);
}
public override void UpdateParameters(ColorTransformContext context)
{
base.UpdateParameters(context);
if (Operator == null)
{
throw new InvalidOperationException("Operator cannot be null on this instance");
}
// Update the luminance
var elapsedTime = timer.Elapsed;
timer.Restart();
var luminanceResult = context.SharedParameters.Get(LuminanceEffect.LuminanceResult);
var avgLuminanceLog = 0.18f; // TODO: Add a parmetrized average luminance
if (luminanceResult.LocalTexture != null)
{
// Get adapted luminance
// From "Perceptual effects in real-time tone mapping" by Grzegorz Krawczyk, Karol Myszkowski, Hans-Peter Seidel, p. 3, Equation 5
var adaptedLum = (float)(previousLuminance + (luminanceResult.AverageLuminance - previousLuminance) * (1.0 - Math.Exp(-elapsedTime.TotalSeconds * AdaptationRate)));
avgLuminanceLog = (float)Math.Log(adaptedLum, 2);
previousLuminance = adaptedLum;
if (AutoKeyValue)
{
// From "Perceptual effects in real-time tone mapping" by Grzegorz Krawczyk, Karol Myszkowski, Hans-Peter Seidel, p. 4, Equation 11
KeyValue = 1.03f - (2.0f / (2.0f + (float)Math.Log10(adaptedLum + 1)));
}
}
// Setup parameters
Parameters.Set(ToneMapShaderKeys.LuminanceTexture, luminanceResult.LocalTexture);
Parameters.Set(ToneMapShaderKeys.LuminanceAverageGlobal, avgLuminanceLog);
// Update operator parameters
Operator.UpdateParameters(context);
// Copy sub parameters from composition to this transform
foreach (var key in Operator.Parameters.Keys)
{
ParameterKey tonemapKey;
if (!tonemapKeys.TryGetValue(key, out tonemapKey))
{
tonemapKey = key.ComposeWith("ToneMapOperator");
tonemapKeys.Add(key, tonemapKey);
}
Operator.Parameters.CopySharedTo(key, tonemapKey, Parameters);
}
}
/// <summary>
/// Updates the parameters for this transformation.
/// </summary>
/// <param name="context">The context.</param>
/// <remarks>This method is called just before rendering the ColorTransformGroup that is holding this ColorTransformBase</remarks>
public virtual void UpdateParameters(ColorTransformContext context)
{
}
/// <summary>
/// Updates the parameters for this transformation.
/// </summary>
/// <param name="context">The context.</param>
/// <remarks>This method is called just before rendering the ColorTransformGroup that is holding this ColorTransformBase</remarks>
public virtual void UpdateParameters(ColorTransformContext context)
{
}
