Sometimes you may come across the simple need of fading an object in or out. The first idea a new user usually gets is to use the Transparency Channel of a Material. That’s a bad choice because you’ll very likely use the material on several objects and they will all be affected then. Or your object has more than one material and so every material channel has to be manipulated. Until we don’t have support for a node based material system in Cinema 4D this isn’t the way to go. And honestly fading an object in or out shouldn’t be done by changing material attributes.