Apple MA434Z/A User Manual - Page 380

Notice that you must first group the parameters into a subtree (the first five lines of the above example). Color controls automatically appear if you name your trio red, green, blue or red1, green1, blue1, or red2, green2, blue2. There are three parameters for the nuiConnectColorPControl function. The first one is the color space, which can be declared with either a string (for clarity) or an integer: kRGBToggle 0 kHSVToggle 1 kHLSToggle 2 kCMYToggle 3 The second parameter describes the type of value to be scrubbed-the current, average, minimum, or maximum. Again, you can use either the word or the integer. kCurrentColor 0 kAverageColor 1 kMinColor 2 kMaxColor 3 The last parameter is a toggle to declare whether you use the current node's pixel values or the input node's pixel values. You use either 0 or 1: • 0 = current node • 1 = input node Use of the current node may possibly cause a feedback loop. Typically, for color corrections, you use current node; for keyers, the input node. Therefore, the above example creates a subtree called Color for the function called MyFunction. The scrubber returns RGB values, of which only the current value is returned. When the Color control is called, the Use Source Buffer is turned on. Assigning the Old Color Control In the ui directory: nuiPushControlGroup("Func.Color"); nuiGroupControl("Func.red"); nuiGroupControl("Func.green"); nuiGroupControl("Func.blue"); 380 Chapter 14 Customizing Shake