When modeling, for reasons that are not the case, you can go fast and place certain coplanar surfaces of the model 3D. This is usually not a problem in the case of a still image. The randomness of the calculation can result in the calculation going well. Or, if it goes wrong, is arranged in post production. If that happens in an animation, that error may be shown in some frames and not in others.
When you play the already calculated frames, you will notice that parts of the geometry are flashing somewhere in the scene. Obviously, that result is unacceptable and although sometimes can be solved in post production, I do not recommend it.
At that point (sometimes it’s very close to the due date), the “renderman” has to immediately notify the modeler to do again his work correctly.
There will be a stage in the process in which the work of the modeler is finished. But, the other two team members, still have tasks to perform. But, until then, it must be available to them, as we have said, to progressively model in more detail the scenes and solve the problems that appear in the model 3D.
Modeling tasks can include many facets, but we will discuss this in a later chapter.