Attendees

✓Gary Oberbrunner (Dark Star Systems)

✓John-Paul Smith (BorisFX) - Chair

✓Pierre Jasmin (RE:Vision)

✓Phil Barrett (FilmLight)

✓Guido Veldkamp (Assimilate)

John Mertic (Linux Foundation)

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✓Mikki Wells (BorisFX - Mocha)

✓Paul Miller (Boris FX - Silhouette)

✓Alexandre Bizeau (Maxon - Red Giant)

✓Greg Cotten (Video Village)

Future Agenda Items:

• See the Agenda github project page at https://github.com/orgs/AcademySoftwareFoundation/projects/26/views/1

Minutes

Meeting called to order at 12:01pm EDT.

Organizational Matters

• None

Technical Matters

1. Clip and Image Metadata

   • Status: No update due to release work (Paul M.)

   • Action: Paul to revisit after release.

2. Param Interpolation

   • Status: Test build available; header not yet in repo branch.

   • Action: Paul to send header to Pierre for testing, then make a PR

3. Windows ARM64 Plugin Install Directory

   • Discussion of Nvidia’s ARM support

   • Apparently NVIDIA and maybe other vendors are going to prefer ARM64

   • Unclear whether we will need separate dirs for ARM64 or ARM64EC – and should plugins build ARM64X to support both?

   • Action: Gary to discuss w/ J-P, and draft spec change PR for ARM plugin directory.

4. Property Type on Host Object (#186)

   • Discovery that many hosts return "Host" or "host" instead of the expected “OfxImageEffectHost".

   • Resolution: Update the spec and support suite to indicate the proper value (not “Host”); improve documentation.

   • Action: Gary to make a PR

5. DaVinci Resolve Recap (NAB Meeting)

   • J-P and Pierre were at the NAB meeting along with Maxon folks. From Blackmagic: Rohit & Vivek and someone from the Fusion group.

   • Summary: Resolve team updated on recent OFX efforts; Maxon interested in custom UI elements within parameter blocks.

   • Custom param UI is supported in the spec using InteractSuite, but no hosts implement it yet.

   • Discussion on extending DrawSuite to support image (non-GPU) rendering in parameter UI. Maybe something simple like RGBA, sRGB

   • Actions:

     • Alexandre to draft a spec proposal with Resolve team to use InteractSuite and extend DrawSuite with a drawImage function

     • Will need to be able to query param UI dimensions

     • Consider caching/hashing image descriptors to avoid redundant redraws.

6. Resolve DRX Adapter Plugin

   • Pierre notes that Resolve has an adapter plugin to apply Resolve color page grades (with OFX effects) in other hosts, named “DRX”

   • Plugin vendors should treat this as a host during development/testing (or not? May be identical to Color page in Resolve)

7. Standardizing Plugin Transfer (Avid → Resolve and others)

   • JP proposed a serialized parameter blob (e.g., JSON) for conforming effects between hosts (e.g., AVX to OFX) along with an OpenFX “conform” callback

   • Benefits: Helps conform timelines across ecosystems.

   • Action: JP to file a GitHub issue to track and refine proposal.

   • Discussion: Some skepticism about spline/keyframe portability; proposal needs further detail and host/vendor engagement.

8. OFX Instance Creation and Parameter State

   • Gary raised issue: Resolve creates instances before clips are connected and never fires instanceChanged, preventing correct parameter state.

   • Consensus: Use pluginEdited as change reason; allow enable/disable/value updates in create context.

   • Action: Gary to finalize and publish spec update under standard change #184 for OFX 1.6.

Action Items:

Misc

Meeting adjourned at 12:55pm EDT

Here is the Meeting recording and transcript

(To find meeting recordings, go to https://openprofile.dev/my-meetings, find the meeting – link should be in there)

Next month's meeting will be at the usual date and time.