How to serialize vector3 with JSON.net?

Question

Hi,

I'm trying to serialize vector3 fields using JSON.net, however, it's also serializing normalized values and magnitudes, e.g.:

 {
           "x": -0.139040321,
           "y": -0.0536295325,
           "z": -0.250134617,
           "normalized": {
             "x": -0.47753495,
             "y": -0.184191,
             "z": -0.8590891,
             "magnitude": 1.0,
             "sqrMagnitude": 1.0
           },
           "magnitude": 0.2911626,
           "sqrMagnitude": 0.0847756639
         }

I know you can use attributes to specify which fields/properties should be included for serialization, but since I don't own this type that doesn't seem like a viable approach.

Is anyone using JSON.net to serialize just the xyx components of vector3? If so how?

Thank you

Answer 1

Answer by JerkyTreatz · May 01, 2017 at 04:17 PM

Not sure if the OP found a solution, but I was getting this same error. I decided to just create a Vector3Json object with just x, y, z properties. When saving the objects, I would create this object from the Vector3 and serialize.

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Answer 2

Answer by ModLunar · Feb 16 at 04:06 PM

In Unity 2020.1 Alpha, I managed to get Newtonsoft.Json through the Unity package manager. I customized its serialization by inheriting from DefaultContractResolver and creating a JsonConverter<float>.

The custom DefaultContractResolver makes the serialization work just like Unity's serializer.
The JsonConverter<float> gives us the power to decide how many decimal places ALL floats will serialize with.

I describe it and posted the code on the Unity forums.

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How to serialize vector3 with JSON.net?

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