| 1 Function | 2 Reference Model | 3 Input/Output Data |
| 4 SubAIMs | 5 JSON Metadata | 6 Profiles |
| 7 Reference Software | 8 Conformance Texting | 9 Performance Assessment |
1 Functions
The Visual Scene Creation (PAF-VSC) AIM receives input Avatars with their Identifiers and input Spatial Attitudes and input Audio-Visual Scene Descriptors and produces output Scene Descriptors by adding the Avatars to the input Audio-Visual Scene Descriptors with the input Spatial Attitudes and providing the Spatial Attitudes of the Avatars’ mouths:
| Receives | Avatar ID | Avatar Identifiers. |
| Audio-Visual Scene Descriptors | Descriptors of the full AV Scene. | |
| Avatars | Avatars in the Visual Scene | |
| Spatial Attitude | Spatial Attitudes of Avatars | |
| Produces | Visual Scene Descriptors | where the Avatars have been added to input AV Scene Descriptors |
| Spatial Attitude of Avatars’ Mouths | The Mouths of the Avatars’ Spatial Attitude |
2 Reference Model
Figure 1depicts the Reference Architecture of the Visual Scene Creation AIM ( (PAF-VSC)).
Figure 1– The Visual Scene Creation (PAF-VSC) AIM
3 Input/Output Data
Table 1 specifies the Input and Output Data of the Visual Scene Creation (PAF-VSC) AIM.
Table 1– I/O Data of the Visual Scene Creation (PAF-VSC) AIM
| Input | Description |
| Avatar IDs | Identifiers of Avatars being handled. |
| Audio-Visual Scene Descriptors | Descriptors of the Initial Visual Scene |
| Avatars | Avatars of Participants and VMS |
| Spatial Attitudes | Spatial Attitudes of Participants’ and VMS’ Avatars |
| Output | Description |
| Visual Scene Descriptors | Descriptors of the entire Visual Scene |
| Mouth Spatial Attitudes | The Spatial Attitudes of the Mouths of Participants’ and VMS’ Avatars |
4 SubAIMs
No SubAIMs.
5 JSON Metadata
https://schemas.mpai.community/PAF/V1.5/AIMs/VisualSceneCreation.json
6 Profiles
No Profiles
7 Reference Software
8 Conformance Testing
Table 2 provides the Conformance Testing Method for PAF-VSC AIM.
If a schema contains references to other schemas, conformance of data for the primary schema implies that any data referencing a secondary schema shall also validate against the relevant schema, if present and conform with the Qualifier, if present.
Table 2 – Conformance Testing Method for PAF-VSC AIM
| Receives | Avatar ID | Shall be string or validate against Instance ID Schema. |
| Audio-Visual Scene Descriptors | Shall validate against AV Scene Descriptors Schema. | |
| Avatars | Shall validate against Avatar Schema. Avatar Data shall conform with 3D Model Qualifier. |
|
| Spatial Attitudes | Shall validate against Spatial Attitude Schema. | |
| Produces | Visual Scene Descriptors | Shall validate against Visual Scene Descriptors Schema. |
| Spatial Attitude of Avatars’ Mouths | Shall validate against Spatial Attitude Schema. |
