3d Model Topology. How easy it is to rig and animate the model. How do i know if i have even distribution of edges in my mesh.
Unwrapped uvs are easier to manage with quad topology. It is essentially the process of fixing a model with bad topology. Retopology is the process of converting high resolution models into something much smaller that can be used for animation.
Good topology right it is important that you maintain good clean topology when building your 3d models.
Retopology is the process of taking a model with bad topology and making a copy of that model but this time with good topology. To demonstrate an example have you ever asked yourself any of the following questions. In the past a 3d artist would painstakingly build a mesh polygon by polygon. This is an obvious tip but one that everyone venturing into 3d modeling in blender.