TVPaint Frame ranges

Development
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1

Issue

We’ve found out that TVPaint is not really VFX pipeline friendly and one of the issues is that TVPaint is not much happy about frame ranges not starting from 1 (frame index 0).

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Suggested solution n1

Don’t set frame start/end to mark in/out but only care about range. Which means:

  • Mark In by default starts with index 0 (but can be different)
  • Mark Out is set to “Mark In + (frameEnd - frameStart + 1)”
  • Validation of scene does not care about Mark In/Out values but it’s range must fit framStart/frameEnd of the asset(shot)
  • Extractor rendering the frames must output filenames with frames in range frameStart and frameEnd
2

That all sounds good!

Extractor rendering the frames must output filenames with frames in range frameStart and frameEnd

Bit unsure about this, but I dont have a solid argument for not renaming other than it’ll be different from whats in TVP.

3

Created PR TVPaint frame range definition by iLLiCiTiT · Pull Request #1424 · ynput/OpenPype · GitHub

4

Not sure if still a relevant issue. But I believe the Integrator can actually take care of that if the representation has a frameStart value that represents the start frame it should become due to the logic implemented here. I have no idea how well that logic actually holds up if there are also handles to consider, etc.