I can't say I'm super thrilled to build cairo on windows, but if that's the direction we want to go, so be it.
--Ray On 2020-12-09 11:19 a.m., Brecht Van Lommel via Bf-committers wrote: > I'm not sure there exists a simple utility to convert SVG to PDF that we > could include, if we want to go that way? > > Inkscape uses Cairo for PDF writing, that could be a more actively > maintained alternative. > https://www.cairographics.org/ > > It has also been proposed to be added to handle Wayland window decorations > in D7989, so it would let us solve both problems with one library. > > > On Wed, Dec 9, 2020 at 11:46 AM Antonio Vazquez via Bf-committers < > bf-committers@blender.org> wrote: > >> There are several reasons why I decided to use libharu. >> >> * The PDF format is very stable and does not change substantially, so we >> are not at great risk due to format changes. >> * I already know that this library is not maintained, but since the PDF >> format does not change, it does not require much maintenance. >> * This library is widely used in other software to generate PDF, so it is >> well proven. >> >> Regarding the bugs you comment, I have seen that several have a patch to >> solve them, but in any case, the use I make of the library does not include >> using images, only a very simple use. I do not expect, in the short or >> medium term, to use anything related to appending images, so these bugs do >> not affect us at all. Attaching images to a PDF does not make much sense in >> our case. >> >> Including a converter from SVG could work, but the problem is that in PDF >> we can generate a document with several pages and in SVG I have not seen >> that this is supported. Imagine that we want to generate a storyboard with >> 100 frames ... we would need to export 100 SVG and join them later ... now >> that is very simple. We would also have to assess the speed of the >> conversion, since now it is all C / C ++ and it is very fast. >> >> The other option I have been considering is to fork libharu and create a >> tiny version with the functions we need and remove any appended image >> support. >> >> Antonio >> >> El mié, 9 dic 2020 a las 0:46, Campbell Barton via Bf-committers (< >> bf-committers@blender.org>) escribió: >> >>> Hi Antonion, >>> >>> From what I can tell libharu hasn't been very active since 2013, their >>> site states they're looking for a new maintainer. >>> Would we become the defacto maintainers of this library? >>> >>> I checked their issue tracker, while many reports are support requests >>> and build issues, there are some more serious looking issues too, eg: >>> >>> https://github.com/libharu/libharu/issues/73 >>> https://github.com/libharu/libharu/issues/71 >>> https://github.com/libharu/libharu/issues/63 >>> >>> Is there a significant advantage in integrating a library compared >>> with bundling a utility that converts SVG to PDF? >>> In this case it could be an optional dependency, or we bundle the >>> conversion tool in official releases so PDF support is still >>> integrated from a user perspective. >>> >>> On Wed, Dec 9, 2020 at 6:31 AM Antonio Vazquez via Bf-committers >>> <bf-committers@blender.org> wrote: >>>> Hi All, >>>> >>>> >>>> >>>> As some of you may already know, for version 2.92 we want to focus on >> the >>>> Import and Export processes of Grease Pencil (T83190). >>>> >>>> >>>> >>>> Currently, the grease pencil is in some way an "island" in the studios >>>> pipeline and we need to add tools to integrate it. Part of these >>>> integration processes were the work we did to make image traces (2.91) >>> and >>>> shortly, video traces (2.92). >>>> >>>> >>>> >>>> During the contacts that the members of grease pencil team usually have >>>> with 2D studios, they have detected that some commercial software very >>>> important in the studios pipeline does not support the import of SVG, >> but >>>> of PDF. In addition, the PDF format allows working in many softwares >> and >>> is >>>> very useful for generating storyboards and work in comics. >>>> >>>> >>>> >>>> Past weeks, I have been working on a new I/O module for grease pencil >> in >>> C >>>> ++ and I already have the SVG Importer (T79875) and the SVG Exporter >>>> (T83191) and PDF Exporter (T83192) working. All work has been done on a >>>> private branch on my PC. >>>> >>>> >>>> >>>> You can see a PDF exporter video here: https://youtu.be/BMm0KeMJsI4 >>>> >>>> >>>> >>>> To export to PDF I have used an open source library (libharu >>>> http://libharu.org/) and would need to integrate that library into >>> Blender. >>>> This library is very simple (<1.6 MB on Windows) and allows export to >> PDF >>>> easily. >>>> >>>> >>>> >>>> Finally, exporting to PDF opens up a world of possibilities and >>> especially >>>> when the new LineArt module will be integrated into Blender. >>>> >>>> >>>> >>>> If we agree to integrate libharu, I can prepare the patch for review >> the >>>> I/O code I did. >>>> >>>> >>>> >>>> I would like to hear your opinions. >>>> >>>> >>>> >>>> Best Regards, >>>> >>>> Antonio Vázquez >>>> >>>> Grease Pencil Team >>>> _______________________________________________ >>>> Bf-committers mailing list >>>> Bf-committers@blender.org >>>> https://lists.blender.org/mailman/listinfo/bf-committers >>> >>> >>> -- >>> - Campbell >>> _______________________________________________ >>> Bf-committers mailing list >>> Bf-committers@blender.org >>> https://lists.blender.org/mailman/listinfo/bf-committers >>> >> _______________________________________________ >> Bf-committers mailing list >> Bf-committers@blender.org >> https://lists.blender.org/mailman/listinfo/bf-committers >> > _______________________________________________ > Bf-committers mailing list > Bf-committers@blender.org > https://lists.blender.org/mailman/listinfo/bf-committers _______________________________________________ Bf-committers mailing list Bf-committers@blender.org https://lists.blender.org/mailman/listinfo/bf-committers
