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| 01:17 | Bertl | off to bed now ... have a good one everyone!
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| 04:21 | mithro | Bertl_zZ / se6astian|away: How big is the AXIOM firmware?
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| 08:10 | Bertl_zZ | changed nick to: Bertl
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| 08:10 | Bertl | morning folks!
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| 08:11 | Bertl | mithro: define AXIOM firmware
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| 08:17 | Bertl | btw, I finally finished the triple mini DP plugin .. how is your progress on the opsis side?
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| 09:40 | se6astian|away | changed nick to: se6astian
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| 09:42 | se6astian | good morning
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| 09:42 | Bertl | morning se6astian!
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| 09:42 | se6astian | mithro: we use 4 or 8gb micro sd cards currently
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| 09:43 | se6astian | how full they are with arch linux herbert will be able to tell
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| 11:16 | mithro | Bertl: please keep bugging me
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| 11:19 | Bertl | buggs mithro
| | 11:20 | Bertl | we will test the 3xmDP module in the next few days and if it works as expected, we'll probably send you one as well
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| 11:20 | Bertl | (or maybe two, if you get the AXIOM Beta adapter done before the 3xDP module :)
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| 11:22 | mithro | The axiom beta adapter is on the list first
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| 11:23 | Bertl | okay, so preferably two modules then
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| 11:24 | mithro | That should be ready, but I haven't had the time to finish the verification
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| 11:24 | Bertl | I can probably skip the power supply for those, as it won't be needed for the link
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| 11:26 | mithro | I still need to find a board designer that is willing to work on tofe boards for me.
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| 11:27 | Bertl | what do you pay per design or hour? :)
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| 11:28 | mithro | Not enough :-P
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| 11:28 | Bertl | maybe that's the reason ...
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| 11:30 | mithro | Well, work pays me pretty well but I need to fund my fpga developer and buy expensive axiom stuff too ;-)
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| 11:30 | Bertl | i.c.
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| 12:52 | se6astian | gotta go
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| 13:48 | Bertl | John_K: regarding the bayer order, you probably want to make that an option and not simply 'change' it, because when you flip the sensor image vertically (via sensor reg) then you will get the wrong pattern again
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| 14:12 | Bertl | off for now ... bbl
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| 14:12 | Bertl | changed nick to: Bertl_oO
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| 20:52 | troy_s | Greets @Bertl_oO
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| 20:52 | troy_s | Hope things have been well for you.
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| 20:59 | Bertl_oO | hello troy_s! LTNS!
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| 21:00 | Bertl_oO | things have been mostly busy, but I can't complain ...
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| 21:00 | Bertl_oO | eveything fine on your end?
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| 21:01 | troy_s | All good. Busy.
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| 21:01 | troy_s | Been making progress?
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| 21:03 | Bertl_oO | I guess so, the first bunch of Early Betas have arrived at their new owners
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| 21:03 | Bertl_oO | the experimental 4k raw got good publicity
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| 21:05 | troy_s | Bertl_oO: How has that been going?
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| 21:07 | Bertl_oO | the 4k raw?
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| 21:10 | troy_s | Yes.
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| 21:11 | Bertl_oO | there is an article describing the process
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| 21:11 | Bertl_oO | https://www.apertus.org/axiom-beta-uhd-raw-mode-explained-article-may-2016
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| 21:11 | troy_s | I read someone talking about a "magenta cast" not too long ago and I cringed at the sadly missing knowledge blocks.
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| 21:12 | se6astian | hi troy_s
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| 21:13 | se6astian | good to see you back here!
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| 21:13 | se6astian | have to leave soon though
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| 21:13 | troy_s | Greets se6astian, hope you are well.
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| 21:13 | troy_s | Any luck in giving up on DNG yet?
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| 21:13 | troy_s | :)
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| 21:13 | troy_s | KIDDING!
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| 21:14 | troy_s | Bertl_oO: I've found quite a few interesting bits of research that will interest you very likely.
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| 21:14 | troy_s | First, DolbyPQ, which is a technique for quantization across bits. Well worth researching. Implementation in the ACES development tree with the CTLs.
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| 21:15 | troy_s | A very interesting PDF on scene referred versus display referred transforms in video games of all things. Excellent material covering desaturation / crosstalk as well. http://gpuopen.com/wp-content/uploads/2016/03/GdcVdrLottes.pdf
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| 21:15 | troy_s | And some other interesting Tweets recently that are of relevance and interest:
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| 21:16 | troy_s | https://twitter.com/NateOrloff/status/734183388727414785
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| 21:16 | troy_s | (On the subject of EXR conforming.)
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| 21:16 | troy_s | and
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| 21:16 | troy_s | https://twitter.com/hpduiker/status/734460111935012865
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| 21:17 | Bertl_oO | troy_s: any URL for the DolbyPQ?
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| 21:17 | troy_s | (HPD is a big brainer that designed the ACES transforms package. What is interesting here is that the Academy's stance is to keep colour grades in the scene referred domain, and the tonemaps on the view transforms.
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| 21:17 | troy_s | Bertl_oO: There's two sources I've seen in code, the ACES being the most reliable.
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| 21:18 | troy_s | It's fascinating stuff though. Covers up to 10000 nit range, which in the grand schemes of colour and its management, the elephant in the room has always been emission levels of the display.
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| 21:19 | troy_s | Quite an interesting post from HPD as it makes perfect sense.
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| 21:20 | troy_s | Also interesting in terms of pipelines for software, as it uniquely splits some of the grading decisions between the scenic data and the view.
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| 21:20 | se6astian | very nice to see things moving so well
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| 21:20 | se6astian | off to bed now though
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| 21:20 | se6astian | good night
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| 21:20 | troy_s | Night se6astian
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| 21:20 | se6astian | changed nick to: se6astian|away
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| 21:21 | troy_s | Bertl_oO: The ACES view transforms have DolbyPQ variants which are the DolbyPQ adjustments with a bezier weighted knot set of curves for 48 nit, 1000 nit, and 2000 nit.
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| 21:23 | troy_s | You might also dig this presentation by Alex Fry on dealing with scene referred manipulations in post production. It specifically deals with ACES, but the concepts are all of the same issues faced with cameras and such.
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| 21:24 | troy_s | https://www.youtube.com/watch?v=vKtF2S7WEv0
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| 21:24 | troy_s | (Although the more I read about ACES and work through the CTLs, the more I'm blown away by how much experience and science is baked into it.)
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| 21:25 | troy_s | (Smartest thing for Apertus would be to offer an ACES path immediately.)
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| 21:25 | troy_s | (Very easy to implement as an IDT once you have decent characterizations down. If you crawl through the Arri vendor supplied bits in the repository for 1.0.2, you will see a per-EI set of tables for the LogC encodes.)
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| 21:33 | troy_s | Egads. Looks like a bit of chuck numbers at wall and hope approach.
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| 21:36 | Bertl_oO | I have no idea about ACES
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| 21:36 | troy_s | It's not complex.
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| 21:36 | troy_s | Just a standard set of primaries, a protocol, a set of naming conventions, file formats etc.
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| 21:36 | troy_s | All based on existing standards (the file format is ADX which is a DPX with very strict details on what is in it and what it means)
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| 21:37 | Bertl_oO | is there something to work with on Linux?
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| 21:37 | troy_s | All of it works on any platform.
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| 21:37 | Bertl_oO | urls?
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| 21:37 | troy_s | The entire official ACES LUTs etc., are all OCIO.
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| 21:37 | troy_s | Here's the official 1.0.2, which gets pulled into the OpenColorIO-Configs repository.
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| 21:37 | troy_s | https://github.com/hpd/OpenColorIO-Configs/tree/master/aces_1.0.2
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| 21:37 | troy_s | That's the "end user" LUT set.
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| 21:38 | troy_s | The generating bits are also in there, including Python.
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| 21:38 | troy_s | The aces-ctl transforms and such are all here:
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| 21:38 | troy_s | https://github.com/ampas/aces-dev
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| 21:38 | troy_s | The specifications and such are all SMPTE and such and they can be found here:
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| 21:39 | troy_s | https://github.com/ampas/aces-dev/tree/master/documents
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| 21:39 | troy_s | Bottom line, is that when you don't have a clue, ACES takes all the guesswork out of things.
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| 21:39 | troy_s | It provides both an archival full spectral locus container (ACES proper)
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| 21:40 | troy_s | and a grading / cg set of constrained primaries (long story as to why you want that) ACEScg / ACEScc which are the same, but the ACEScc has a transfer curve specification.
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| 21:45 | Bertl_oO | sounds good, maybe our color science folks can take a closer look at it ...
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| 22:58 | John-K | @Bertl_oO: Hrmm, it seems to be happening a lot. When you say there are mechanisms in firmware - do you mean in VHDL or in cmv_snap3?
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| 22:59 | Bertl_oO | what happens a lot?
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| 23:10 | Bertl_oO | anyway, off to bed now ... have to get up early ...
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| 23:10 | Bertl_oO | changed nick to: Bertl_zZ
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