Click
here to see a quick animation I made, if this is what you want to do it should take you about twenty seconds to make.
How I made this is I created two identical geospheres and two materials. One material was a red wireframe material (Check the wireframe box) and the other was just a default material. On the wireframe material, I set the opacity to 0. This is a very important part of the animation, so follow this directions. Hit the auto-key button at the bottom of your screen and open up your material browser. With auto-key still checked down, move to frame 100 (Or whatever frame you'd like) and on the wireframe material, turn the opacity to 100. On the other material, turn the opacity to 0.
You can do this with any object you want, so whatever you're working with right now, just duplicate it and create two materials.
Also, if you want to know what I used to render this. I used the Advanced Lighting with a Light Tracer. The only light in the scene is a skylight so the lightracer looks good.