MPAI-TFA V1.0 Data Types 3D Model

1      Definition

A Data Type digitally representing surface and relevant features of 3D objects an instance of captured as analogue signals – or rendered to be perceived – in the human-visible range (380 to 700 nanometres).

2      Functional Requirements

A 3D Model Data Qualifier must allow the expression of the following Elements:

1. Sub-Types
2. Formats
3. Attributes

3      Syntax

4      Semantics

1. Sub-Types
2. Formats
   1. Content
   2. Definition: the method to represent a time-independent or time-dependent Visual instance as 3D information
      1. Methods
         1. Static
            1. 3DS (https://docs.fileformat.com/3d/3ds/)
            2. glTF (https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html)
            3. G-PCC (ISO/IEC 23090-9:2023)
            4. OBJ (https://docs.fileformat.com/3d/obj/)
            5. USD (https://openusd.org/release/index.html)
            6. V-PCC (ISO/IEC 23090-5:2023)
         2. Dynamic
            1. FBX (https://docs.fileformat.com/3d/fbx/)
            2. glTF (https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html)
            3. G-PCC (ISO/IEC 23090-9:2023)
            4. USD (https://openusd.org/release/index.html)
            5. V-PCC (ISO/IEC 23090-5:20230)
         3. Transport
            1. Definition: the method used to transport a Visual instance
            2. Methods

3. Attributes
   • Metadata
     • Definition: the method used to attach information to a Visual instance.
     • Methods