You can learn here about biped rigging of any characters. Here you will learn this concept of rigging with biped in simple form character. You can download it from here if you are registered on this site. This site contains variety of materials about character modeling and animation.
The character and animation are both necessary for each other because the characters are created just for animation and animation is produced only because of animation. Though the lesson is about character modeling, therefore we shall take start from character. In 3d s max and Maya, there character is designed because of reference image; this reference image can be downloaded from any commercial site. The first step for character modeling is creating joints for different parts of body. This job is done in side viewport because it provides more accuracy in character modeling. The joint creating demands enough skill for similar joints of required model.
Joint Setup
Therefore don’t worry about joint indifference because different characters have different joint setup. It is advantage of this technique that you can create other part or side of the body with mirror option if you have created it first. There are three part of biped rigging and in this first part we have read about basics of character rigging and in next part we shall study about skin modifier and other requirements. So stay here and search for next parts of biped rigging in 3D studio max.