1     Definition 2     Functional Requirements 3     Syntax
4     Semantics 5    Conformance Testing 6     Performance Assessment

1    Definition

A Data Type that includes:

  1. ID of the Virtual Space in which the Avatar id located,
  2. ID of the Avatar
  3. Space-Time information of the Avatar
  4. 3D Model of the Avatar
  5. Body Descriptors of the Avatar
  6. Face Descriptors of the Avatar.

2     Functional Requirements

Avatar conveys the following information:

  1. The ID of the Virtual Space.
  2. The ID of the Avatar.
  3. The Time and Spatial Attitude of the Avatar is in the M-Instance.
  4. The set of Data characterising an Avatar:
    1. 3D Model.
    2. Face Descriptors.
    3. Body Descriptors.

An Avatar Model of a human may:

  1. Faithfully reproduce the visual appearance of the human.
  2. Have their visual appearance altered, compared to that of the human.
  3. Have an unrelated visual appearance.
  4. Display a presumptive Personal Status in speech, face, and gesture.

3     Syntax

https://schemas.mpai.community/PAF/V1.4/data/Avatar.json

4     Semantics

Label Size Description
Header N1 Bytes Avatar Header.
– Standard-Avatar 9 Bytes The characters “PAF-AVT-V”
– Version N2 Bytes Major version
– Dot-separator 1 Byte The character “.”
– Subversion N3 Byte Minor version
MInstanceID N4 Bytes ID of Virtual Space the Avatar belongs to.
AvatarSpaceTime N5 Bytes The inherent Space-Time info of the Avatar.
AvatarID N6 Bytes Identifier of Avatar.
AvatarData N7 Bytes Set of Data related to Avatar
– AvatarModel N8 Bytes Model of Avatar.
– BodyDescriptors N9 Bytes Avatar Body Descriptors.
– FaceDescriptors N10 Bytes Avatar Face Descriptors of Avatar.
DescrMetadata N11 Bytes Descriptive Metadata

5     Conformance Testing

A Data instance Conforms with Avatar (PAF-AVT)  V1.4 if:

  1. JSON Data validate against the Avatar’s JSON Schema.
  2. All Data in the Avatar’s Schema
    1. Have the specified type.
    2. Validate against their JSON Schemas.

6     Performance Assessment