| | <<<Back 1 day (to 2020/08/11) | Fwd 1 day (to 2020/08/13)>>> | 20200812 |
| Moult | can mupdf edit/create 3d content in pdfs? like an embedded 3d object? | 01:14.43 |
| sebras | Moult: it can not. | 01:22.46 |
| | it cannot render it either. | 01:23.11 |
| | Moult: 3D annotations, editing them, and video/audio annotations are all quite unlikely to be implemented the way they are in acrobat reader. | 01:26.14 |
| Moult | sebras: oh ok. what's the reasoning? | 01:47.17 |
| | sebras: is 3d pdf like voodoo? | 01:47.22 |
| sebras | Moult: it is really a separate 3D format, just like audio or video files | 01:59.00 |
| | Moult: the format is called U3D if I remember correctly. | 01:59.10 |
| Moult | sebras: yes, google tells me u3d and prc | 01:59.18 |
| | sebras: but why is it hard to write/render? | 01:59.23 |
| sebras | Moult: its rendering has entirely separate rules from normal PDF contents. | 02:00.10 |
| | Moult: but it is of course not more difficult than 3D graphics in a game. | 02:00.37 |
| malc_ | sebras: the Chinese bug reporter from yesterday responded! Too bad that he likes the "dumb"(aka synchronous) way mupdf operates rather than my refined and sophisticated asynchronous one.. sigh | 05:39.35 |
| ator | sebras: you're wrong, U3D is MUCH more difficult than 3d graphics in a game. it's an insane designed-by-committee-kitchen-sink format with all the patented technologies you can throw at it. | 08:21.15 |
| malc_ | wtf is U3D? | 08:24.52 |
| sebras | malc_: the 3D format in PDF. | 08:29.14 |
| malc_ | sebras: doh... so we have U(nity|nreal)3D and pdf too | 08:30.01 |
| | great | 08:30.04 |
| sebras | malc_: https://en.wikipedia.org/wiki/Universal_3D | 08:30.37 |
| malc_ | sebras: what did i ever do to you to deserve this? | 08:31.38 |
| | tack nevertheless | 08:31.50 |
| sebras | ator: I haven't read (and understood) the spec, so to me U3D looks like any other 3D graphics. | 08:50.26 |
| | btw, there is an open source project https://gitlab.com/eddiejones/jreality/-/tree/master/src-io/de/jreality/writer/u3d that I think can be used to create these U3D files that can be embedded in PDF. | 08:50.59 |
| | but it has not been updated in 6 years, and it looks rather meager. maybe it doesn't implement all of it. | 08:51.41 |
| malc_ | sebras: who implements U3D? Does FoxIt? | 08:53.40 |
| Moult | malc_: i work in architecture/engineering/construction, and most of the proprietary pdf readers implement it. | 08:54.01 |
| sebras | malc_: Adobe. | 08:54.57 |
| Moult | it includes adobe, but also bluebeam and i _think_ PDF-XChange | 08:56.25 |
| malc_ | Moult: gotcha | 08:57.28 |
| | makes one wonder how many PDF rendering engines are there... cause i have no idea what bluebeam is and what pdf-xchange uses internally | 08:58.39 |
| Moult | it's not something i would spend time investing it, personally - unfortunately there are people in the industry who do like to send these 3d pdfs. usually management level who don't know how to open a 3d program. | 08:58.40 |
| malc_ | everything should be done in AutoCAD 9 | 08:59.12 |
| Moult | glares at malc_ | 08:59.48 |
| malc_ | or whatever the version they forcefed us in the university | 09:00.03 |
| | nearly 30 years ago | 09:00.23 |
| | Moult: word of warning - https://www.goodreads.com/quotes/272885-beware-that-when-fighting-monsters-you-yourself-do-not-become | 09:04.43 |
| Moult | malc_: sorry :( | 09:05.39 |
| malc_ | Moult: there's nothing to be sorry for, us monster could use some company | 09:08.19 |
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