Photogrammetry is the process of
using multiple photos of the real-world objects to author game-ready assets.
It’s best suited to objects that are time-consuming to produce in 3D sculpting
software. Photogrammetry allows you to get a qualitative result, but requires a
very high texture resolution to conserve details. This is unpractical for game
authoring due to memory budget, and it doesn’t allow you to add any variation
to the object.
Unity 2018.1 beta introduced a
preview of Scriptable Render Pipeline. Two built-in render pipelines will be
released with Unity 2018.1: the Lightweight (LW) Render Pipeline and
High-Definition (HD) Render Pipeline. HD Pipeline provides a shader dedicated
to photogrammetry material authoring name: LayeredLit. At the start, the
photogrammetry process can seem to be hard to manage, but the result is worth
it.
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