It has been awhile, I have forgotten how to make a mesh invisible for a number of frames, and then visible thereafter, please advise
animate its alpha value, with linear interpolation to simply disappear, with softer curves for fading effect
Please explain or give me a link that will help me out
i think this should be perfect for you
http://wiki.blender.org/index.php/Doc:Manual/Animation/Basic/Object_Layer_Animation