OBJformaadis

OBJformaadis is a fictional open specification intended to describe the formation, assembly, and transformation history of 3D objects in digital content creation. It extends the traditional Wavefront OBJ file format by providing structured metadata about how an object is formed, how its parts relate, and how its parameters can be altered procedurally.

Key constructs include ObjectInstance, Form, Assembly, Transform, ParameterSet, and Material. The Form represents shape grammar or procedural definition; Assembly encodes the hierarchy and dependencies; Transform records spatial operations; ParameterSet stores editable variables; Material links to rendering attributes. The metadata is designed to be optional and non-intrusive to existing meshes.

History and development: Conceived by a consortium of artists and researchers in 2021, proposed publicly in 2022, and standardized in 2023 as a community-driven extension to the OBJ workflow. Adoption varied by toolchain; several open-source renderers and modelers implemented experimental readers.

File structure and interoperability: OBJformaadis data may be carried in a separate formation block within the same file or in an accompanying .ffm file. It defines a compact syntax for referencing existing OBJ vertex/face data while exposing procedural links. Tools can export/import OBJ with formation metadata; renderers may interpret Form and Assembly to enable parametric edits.

Applications and limitations: Used to enable reproducible asset generation, provenance tracking, and scalable workflows in game development, AR/VR, and 3D printing. Critics note added complexity and the need for widespread tool support. As a community-driven concept, its real-world status is contingent on continued adoption.