
Reimagining Characters with Unreal Engine's MetaHuman Creator
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What is KIRI Engine? Well, KIRI Engine is an application that falls under the category of photogrammetry. Photogrammetry is the process of creating 3D geometry inside a 3D application (automatically, for the most part) using photographs.
In the context of creating a face scan for a MetaHuman, photogrammetry requires the artist to take multiple photographs in a 180-degree arc and at varying heights. From Figure 11.2, you can see four different angles of a head and shoulders.
Figure 11.2: Typical camera positions
We are only interested in the front of the face, which is why we only capture within a 180-degree arc. It’s also important to get high and low angles so that we get information for under the chin, nostrils, and the forehead.
Tips for shooting photogrammetry
- Use diffused (soft) lighting so there are no shadows on the face
- Have your subject sit very still with their chin tilted...
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