Our first problem occurred when I first started referencing the model for the rigging file. Soon after updating the model. I discovered that the regions that had been altered and modified in modelling would inherit some major anomalies when replacing the old file that I was originally working with. Here are a few snapshots of some of the problems that we encountered.
In this case, modifications (i.e edgeloops), were made to the back wheel
This video indicates an even greater exaggeration of the same problem where modifications were made to the wing flaps.
We tried to identify what the problem may have been. We discovered that any changes made through changing edgeloops, duplication created these problems. We also tried to see whether it was the face normals or naming conventions of the model pieces. Unfortunately after a great deal of troubleshooting with little results, we decided to bypass the problem.
Since the rig that I was designing was based purely off parenting geometry to to control curves with the appropriate pivot points, once the control curves had been set up, then the majority of the work was done. The only re-working required was to remove the original referencing in the scene that was not working. Then you would have to re-create the reference, and finally one would have to re-parent the geometry to the control curves with the appropriate pivot points.
The following shows two reference files in one scene whilst replacing the old model with the new.
Once this fairly fast process had been done, then the model and rig reference would be replaced and set up for the animators who would continue animation.
Although this is not an ideal solution to our problem, we found it effective for our immediate purposes. We did however try to imitate a professional production line to the best of our abilities given the constraints that we faced.
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