[DMG&VCB-Studio] Tenki no Ko / 天気の子 10-bit 1080p + 2160p HEVC BDRip [MOVIE]

Tenki no Ko / 天気の子 BDRip
10-bit 1080p HEVC + FLAC, MKV format. ~ 7.4 GB.
10-bit HDR 2160p HEVC + FLAC, MKV format. ~ 10.0 GB.
Official CHN + ENG + JPN PGS.
The MKA of 1080p ver. contains FLAC 5.1 + DTS 5.1 with English Theme Song + audio description.
The MKA of 2160p ver. contains FLAC 5.1 + FLAC 5.1 with English Theme Song.

Thanks to DMG for elaborating Chinese subtitles.

The 1080p version of "Tenki no Ko" Blu-ray has very good picture quality. It's hard to spot any issues, apart from minor aliasing in the background if we're being picky. Given those aliasing lines are hard to notice in actual watching, we decided to ignore them to avoid the side effects of anti-aliasing and better preserve the rich detail, therefore we only applied slight debanding for preprocessing. The Event videos in the bonus contents have rather poor quality, so we downscaled them to 720p to minimize file size, while everything else was encoded in 1080p.

In contrast, the 2160p UHD-BD is disappointing. The line art of the characters is uneven and often over-darkened, a bit aliased, surrounded with prominent ringing; the minor aliasing in the background from the 1080p version is also amplified and became more obvious. We already know that the previous "Your Name." UHD-BD was an upscale from the 1080p master according to a Qtec staff interview, but we haven't seen any definite information this time. In our analysis, though, it does appear that the line art is somewhat characteristic of an 1080p upscale, but we could also see some still recognizable character strokes in the background, while they're blended in the 1080p version,so we guess the original resolution of the master used for the 2160p version is probably a bit higher than 1080p, but still much lower than 2160p. After a few rounds of trial and error, we decided to use the descaling and reconstruction method with a bicubic kernel that was able to smooth out most aliasing without losing too much sharpness, and then applied strong de-ringing to clean up the surroundings. These processing do cause some loss of sharpness and minor artifacts, but the result should still look much better than the source.

For most people, we still recommend the 1080p version as the 2160p version doesn't really have an advantage except HDR. You can try the 2160p version if you have a mid to high-end HDR display (VESA DisplayHDR 600 or higher) and are interested in HDR.

Moreover, as there are currently lots of issues when playing an HDR video with ASS subtitles (subtitles being either too bright or too dark depending on player settings, colors don't match etc.), our collaborators at DMG have only made ASS subtitles for the 1080p version. Given the development of the new ASS standard has been stagnant for years, these problems are unlikely to be fixed any time soon.

The first five pairs of screenshots below are of the 1080p version, and last five are 2160p. All 2160p screenshots have been tone mapped with BT.2390 recommended curve and converted into BT.709 color space (note that this doesn't mean the color will match with the 1080p version).

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Thanks to our participating members:
Script: はかせx助手ちゃん
Encode: gpf0710
Collate: Enola
QC: 助手ちゃんxはかせ, wenpens
Upload: 神楽坂真羽
Seed: Seeding members of VCB-Studio CDN (refer to our website for full list)

Thanks to all resource providers:
CD: KSLU@U2, nnex46@TSDM
BD: Ue@U2

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Please refer to https://vcb-s.com/archives/7949 if you have trouble viewing WebP images.

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Comparison (right click on the image and open it in a new tab to see the full-size one)
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Information:
https://vcb-s.com/archives/138