OpenPBR is a subproject of MaterialX and inherits its broader governance and contribution policies. MaterialX is a project of the Academy Software Foundation and relies on the ASWF governance policies, supported by the Linux Foundation.
The OpenPBR subproject maintains its own Technical Steering Committee (TSC), which has final authority over the subproject. As defined in the broader project charter, TSC responsibilities include, but are not limited to:
- Discussions, seeking consensus, and where necessary, voting on technical matters relating to OpenPBR that affect multiple projects.
- Maintainance and administration of the OpenPBR GitHub repository.
- Coordinating technical direction of the project.
- Coordinating marketing, events, and communications regarding OpenPBR.
Within the TSC there are two key subgroups: Voting Members, who take on formal responsibiities for maintaining the OpenPBR project and vote when decisions are required; and Stakeholders, who represent specific teams and companies in the industry and speak on their behalf in OpenPBR discussions.
These committee members are responsible for contributing actively to the OpenPBR project, whether it's in the form of developing code, improving the specification and documentation, reviewing pull requests on GitHub, or assisting teams with their OpenPBR integrations. Although we expect most decisions to be unanimous across the OpenPBR TSC, for decisions where a formal vote is required, a majority of voting members is required to move forward with a change.
The current Voting Members of the OpenPBR TSC are:
- Adrien Herubel - Autodesk
- Andréa Machizaud - Adobe
- Jonathan Stone - Lucasfilm ADG
These committee members represent teams or companies that are closely aligned with the OpenPBR project, and have a strong interest in how it evolves going forward. Stakeholders speak on behalf of their team or company in OpenPBR discussions, providing the breadth of perspectives that is required to guide the project. Most new committee members start in this category, and it doesn't require a commitment on their part to contribute to or maintain the OpenPBR project, though they are encouraged to do so.
The current Stakeholders of the OpenPBR TSC are:
- Frederic Servant - Autodesk
- Guido Quaroni - Adobe
Any proposal for additional members of the TSC may be submitted by reaching out to a current TSC member on Slack or raising the issue at a TSC meeting. New TSC members are accepted or rejected by majority vote of the TSC.
If a TSC member is for an extended period not regularly participating or performing the responsibilities expected of TSC members, the TSC may by majority vote request an alternate TSC member be submitted by that organization, or remove the inactive member from the TSC.
A member of the TSC may nominate a successor in the event that such member decides to leave the TSC, and the TSC shall confirm or reject such nomination by a vote. In the event that the departing member's nomination for successor is rejected by vote of the TSC, the departing member shall be entitled to continue nominating successors until one such successor is confirmed by vote of the TSC. If the departing member fails or is unable to nominate a successor, the TSC may nominate one on the departing member's behalf.
Voting TSC membership is presumed to be retained by the individual even if they change employers. The TSC may take action to ensure that organizational stakeholder representation not become severely disproportionate, for example by urging an organization that loses its sole TSC representative to nominate a new member, or to limit the total number of members from any one organization if too many members all move to the same organization.
OpenPBR discussions and votes are included in the agenda for meetings of the MaterialX TSC, and members of the OpenPBR TSC should attend these meetings when relevant topics are planned. Scheduling and connection details may be found in the public ASWF Meeting Calendar.