Thrown by createViewpoint() when options.camera is missing (or missing
position/target/up). Forwarding an incomplete camera used to build a
viewpoint whose coordinates silently read back as null
(JSON.stringify drops undefined; -undefined is NaN, which
serializes as null) — see #4251.
Thrown by createViewpoint() when
options.camerais missing (or missing position/target/up). Forwarding an incomplete camera used to build a viewpoint whose coordinates silently read back asnull(JSON.stringifydropsundefined;-undefinedisNaN, which serializes asnull) — see #4251.