Data Acquisition and Character Modeling Approaches
Another significant part of getting the look and feel of the characters correct was in how our subject was captured and to do this, we partnered with 3Lateral
to capture these high-quality results. These capture techniques and processes are similar to what is used for performance capture in modern day movies.
We achieved our result by using a combination of the following:
- Detailed Facial Scans
- Dental Molds
- Performance Capture with Mult-Camera Setups
- Sensors that closely captures Actor's Likeness
The scan data is the closest thing you’ll get to a ground truth for the subject in 3D. Any adjustment or cleanup pass performed on the modeling side is going to be an interpretation of how it “should be” and will affect animation and material comparisons from that point forward. Part of the artist’s job when looking at this scan data is to maintain the integrity of the scan data. This includes supplementing, or even correcting, areas where the system can't capture accurate detail, like areas in the mouth, around the upper eyelid, or the ears. This often requires good artistry with a deep understanding of anatomy, but most of all, the reference captures are critical here to recreate an accurate representation of the subject.
(Left to Right) Raw Scan Data, New Topology with scan details projected, and Displacement added on top of the center topology.
In this example, you can see how the original scan data was taken, retopologized, and cleaned up to accurately reflect the subject, in this case, Andy Serkis.