public ChannelSplitterNode() : base("Channel Splitter", new ColorNodeControl(), Colors.Yellow)
{
AddSocket("Color", InputNodeSocket.Create <DColor>(this));
AddSocket("Red", OutputNodeSocket.Create <DColor>(this, (location) =>
{
var color = (DColor)Inputs["Color"].Data(location);
return(DColor.FromArgb(255, color.R, color.R, color.R));
}));
AddSocket("Green", OutputNodeSocket.Create <DColor>(this, (location) =>
{
var color = (DColor)Inputs["Color"].Data(location);
return(DColor.FromArgb(255, color.G, color.G, color.G));
}));
AddSocket("Blue", OutputNodeSocket.Create <DColor>(this, (location) =>
{
var color = (DColor)Inputs["Color"].Data(location);
return(DColor.FromArgb(255, color.B, color.B, color.B));
}));
AddSocket("Alpha", OutputNodeSocket.Create <DColor>(this, (location) =>
{
var color = (DColor)Inputs["Color"].Data(location);
return(DColor.FromArgb(255, color.A, color.A, color.A));
}));
}
public GaussianBlurNode() : base("Gaussian Blur", new ColorNodeControl(), Colors.Yellow)
{
AddSocket("Color", InputNodeSocket.Create <DColor>(this));
AddSocket("Color", OutputNodeSocket.Create <DColor>(this, location =>
{
float pDelta = 1.0f / 1024.0f;
float totalR = 0;
float totalG = 0;
float totalB = 0;
var weights = GenerateWeights(Strength);
var dim = (Strength - 1) / 2;
for (int x = -dim; x <= dim; x++)
{
for (int y = -dim; y <= dim; y++)
{
var locX = ClampNorm(location.X + pDelta * (double)x);
var locY = ClampNorm(location.Y + pDelta * (double)y);
var sample = (DColor)Inputs["Color"].Data(new WPoint(locX, locY));
float weight = weights[x + dim, y + dim];
totalR += (float)sample.R * weight;
totalG += (float)sample.G * weight;
totalB += (float)sample.B * weight;
}
}
return(DColor.FromArgb(255, (int)totalR, (int)totalG, (int)totalB));
}
));
}
public HueNode() : base("Hue", new ColorNodeControl(), Colors.Yellow)
{
AddSocket("Color", InputNodeSocket.Create <DColor>(this));
AddSocket("Color", OutputNodeSocket.Create <DColor>(this,
(location) =>
{
var color = ((DColor)Inputs["Color"].Data(location));
int invR = 255 - color.R;
int invG = 255 - color.G;
int invB = 255 - color.B;
return(DColor.FromArgb(color.A, invR, invG, invB));
}));
}
public ChannelMixerNode() : base("Channel Mixer", new ColorNodeControl(), Colors.Yellow)
{
AddSocket("Red", InputNodeSocket.Create <DColor>(this));
AddSocket("Green", InputNodeSocket.Create <DColor>(this));
AddSocket("Blue", InputNodeSocket.Create <DColor>(this));
AddSocket("Alpha", InputNodeSocket.Create <DColor>(this));
AddSocket("Color", OutputNodeSocket.Create <DColor>(this,
(location) =>
{
var colorR = ((DColor)Inputs["Red"].Data(location)).R;
var colorG = ((DColor)Inputs["Green"].Data(location)).R;
var colorB = ((DColor)Inputs["Blue"].Data(location)).R;
var colorA = ((DColor)Inputs["Alpha"].Data(location)).R;
return(DColor.FromArgb(colorA, colorR, colorG, colorG));
}));
}
public DesaturateNode() : base("Desaturate", new ColorNodeControl(), Colors.Yellow)
{
AddSocket("Color", InputNodeSocket.Create <DColor>(this));
AddSocket("Color", OutputNodeSocket.Create <DColor>(this,
(location) =>
{
var color = ((DColor)Inputs["Color"].Data(location));
float lum = (color.R / 255.0f) * 0.3f +
(color.G / 255.0f) * 0.6f +
(color.B / 255.0f) * 0.1f;
int colorLum = (int)(lum * 255.0f);
return(DColor.FromArgb(255, colorLum, colorLum, colorLum));
}));
}