Virtual beer by Paco Morales
There is more about building a convincing beer than just revolving a spline. It is the small details that bring credibility to your renders, and this tutorial aims to give you a step by step guide to do just that. While specific to 3dstudio max, most of the techniques can be applied to most other 3d apps.
First, we do the Shapes of the bottle and the liquid (Beer) with (splines).
We can take the drawn image as a reference.
The shapes we should not close. Therefore, when you apply the modifier (lathe) is going to weld them in his open extremes.
Click for viewing tutorial on 3D Tutorials.sk.