Zoom numerical conversion

[KapoYU]

How can the zoom value received by freed be converted into the focal length of the virtual camera? Can you give some suggestions?

[max-verem]

Code should be extended with setting FLiveLinkStaticDataStruct and FLiveLinkFrameDataStruct data structs. Similar code could be taken from https://github.com/max-verem/LensReaderAnalogue/blob/master/src/LensReaderAnalogueLiveLink/Source/LensReaderAnalogueLiveLink/Private/LensReaderAnalogueLiveLinkSource.cpp#L148

[KapoYU]

I use the PTZ camera, but I can still receive that the roll value is changing, which affects the result. Can you help me? Thank you very much.

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[max-verem]

try first VRPN-Free-d.exe from https://github.com/max-verem/VRPN-Free-d to check which values been sent from PTZ camera.