Hello, everybody,
My name is Krys, I am a developer, illustrator and game designer under unity3D and this is my first contribution to the forum.
Here is a unity3D effect with shaders generated by Toon Colors by Jean Moreno. I used an animated texture for the flame.
Rocks and wood are free 3D objects from the asset store.
http://www.studio-krkr.com/krys64/unity3d/campfire/campfire.gif