Random RGB effect

[Robbert Mak]

Hi,

where can I find a truly random rgb effect?

Thanks again.

Robbert

[Christoph Paduch]

Hello Robbert, the particle and noise effects are random. That has also disadvantages, because you cannot loop them in an easy way.
Or do you only want to create a random color or random color changes?
Then you can use scripting for creating the next color and set the color in the effect.

Here an example to create a random number:

using System;
using Scripting;

public static class RandomNumber
{
private static Random rnd = new Random();

// returns a Random number including the min and max value
public static int Run(int min, int max)
{
return rnd.Next(min, max+1);
}
}


And an example to create a color from the color temperature in range 0..360°:

using System;
using Scripting;
using Ecue.Base.Data.Rendering;

/// <summary>
/// Example without warranty.
/// Takes a ColorTemperature in the range 0..360° like the colors in the Color Picker Wheel and calculates the RGB parts and a corresponding ProPhotoColor.
/// </summary>
public static class ColorConvert
{
public static void Run(double colorTemperature, out int red, out int green, out int blue, out ProPhotoColor color)
{
red = 0;
blue = 0;
green = 0;

//calculate blue
if (colorTemperature >= 90 && colorTemperature <= 210)
{
blue = 255;
}
else if (colorTemperature < 90 && colorTemperature > 30)
{
blue = (int)( Math.Abs(colorTemperature - 30.0)*4.25);
}
else if (colorTemperature > 210 && colorTemperature < 270)
{
blue = (int)( Math.Abs(colorTemperature - 270.0)*4.25);
}

//calculate green
if (colorTemperature <= 90 || colorTemperature >= 330)
{
green = 255;
}
else if (colorTemperature < 150)
{
green = (int)( Math.Abs(colorTemperature - 150.0)*4.25);
}
else if (colorTemperature > 270)
{
green = (int)( Math.Abs(colorTemperature -270.0)*4.25);
}

//calculate red
if (colorTemperature <= 330 && colorTemperature >= 210)
{
red = 255;
}
else if (colorTemperature > 150 && colorTemperature < 210)
{
red = (int)(Math.Abs(colorTemperature - 150.0)*4.25);
}
else if (colorTemperature < 30 )
{
red = (int)( Math.Abs(colorTemperature - 30.0)*4.25);
}
else if (colorTemperature > 330 )
{
red = (int)( Math.Abs(colorTemperature - 390.0)*4.25);
}

color = new ProPhotoColor((float)(red / 255.0), (float)(green/ 255.0), (float)(blue/ 255.0), 1f);
}
}


I hope this helps to realize your ideas.

---

Kind regards / Freundliche Grüße
Christoph Paduch

[Autor]

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