
In advance, this is not meant to be some "gotcha" encode because of another recent release that's gained some traction. If you want to duke it out, do it elsewhere.
The BDs for this show are generally pretty bad. There is a lot of banding in darker scenes, a lot of ringing, dirty edges, etc. Fortunately, a lot of the backgrounds survived for the most part, so once most of those issues are remedied, the show still looks very pretty.
The filtering is as follows:
First, scenefiltered edgefixing. The dirty edges differed across scenes, and rather than more automatic approaches (like bbmod or continuityfixer), I decided to take the manual approach (rekt) because the fixes were generally pretty straightforward and simple. bbmod was used for the chroma, however. For S1's NCs specifically, I also filled in the left-most edge, and did a merge between a copied row from the bottom of the frame with an edgefixed one because in some cases, the brightness changes differed. This fixed it up as best as I could see without additional artefacting.
This was then followed by a fake rescale. While I'm decently sure some scenes can be descaled, that's only some. Others are not perfectly safe, but doing a limited rescaling on them still looked better to me in the end. The video was descaled to 720p, AA'd (with based_aa and sraa clamped together), and then reupscaled using a mix between nnedi3 and FSRCNNX to minify ringing caused by either of them. This was then masked to lines, and only the well-defined ones, to reduce any damage to the textures/grain/lineart it may otherwise cause.
Afterwards, S1's NCs had slightly misaligned chroma, so that was fixed as best I could. Every NC also had its chroma slightly warped to better wrap it around the lineart. The clip was then grain stabilised. I decided against performing luma denoising because it was very prone to killing textures for very little benefit in the end. I did denoise the chroma to reduce weird discolourations, and also decsized to save space by blurring super bright parts of the frame.
Finally, debanding. I did a regular weak debanding pass over most of the clip, but some scenes had really atrocious banding. For those I denoised it, threw an immensely strong placebo deband on it, and then diff'd the grain pattern back on. This is not perfect, but since I had done a fairly all right job of not murdering textures in most other scenes, I felt it was right to try and do the same for those scenes, even if that meant leaving some banding behind. I did not do the regular graining afterwards, as I never denoised it away anyway.
For the OVA "NCOP", I also merged the backgrounds that the credits were on together and just replaced those in the clip. Every "credit cut" uses the exact same background, so this was simple enough.
Furthermore, for S2's OP, I shifted the audio by 417 ms forwards. This way it seems to align better with the actual cutting of the OP, and it wouldn't surprised me if this was how it was *actually* intended to be synced.
These BDs are not a whole lot of fun, and I can see why there aren't really any fantastic encodes of it to this day. It requires a lot of manual work if you want decent results, and I just don't think there's many encoders active nowadays who are into heavy manual labour and also have an interest in this show. Unfortunate, really.
Requests are welcome, but don't count on me to follow through with yours from the get-go.
A sheet with links to all my releases, as well as OP/EDs I plan on encoding, can be found [here](https://docs.google.com/spreadsheets/d/1VYJymlJMgQG36upLIT_P_evI5mUkEYnmAcg06Z0P28U/edit?usp=sharing) (not guaranteed to be up-to-date).
Encoding scripts and additional stuff can be found [here](https://github.com/LightArrowsEXE/Encoding-Projects/tree/master/%5BOPMan%5D).
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herkz
neko-raws