To create a 3D bottle animation representing car break fluid. The bottle is to fill with liquid and have 3 separate layers with video composited onto the surface of the liquid.

I created the bottle in Cinema 4D and also the liquid inside the bottle. I then animated the liquid filling up in the bottle and mapped the video on the surface using materials. I set the lighting in the in the scene and then rendered the bottle with an alpha channel. I brought it into After Effects to composite it on to the background scene.