'Re: Layered animation export/import'

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List:       kde-kimageshop
Subject:    Re: Layered animation export/import
From:       Fazekas_László <mneko () freemail ! hu>
Date:       2016-02-22 19:38:50
Message-ID: 56CB63CA.706 () freemail ! hu
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Hi Dmitry,

I've downloaded the Krita source and now I'm trying to understand it.

First of all, my system (Ubuntu 14.04) seems won't be able to compile 
Krita. A lot of things are missing (extra-cmake-modules, KF5 parts). 
What is the recommended environment to compile this monster? Is it worth 
to try it on 14.04? Also, if there is any good source of api 
documentation about QT5 and Krita please tell me. Thanks.

I checked how could be possible to export into the CSV format. I have no 
idea about the importing side yet. Blender's Python plugin system was 
better, it's very easy to use.

The animation export in Krita goes through the kis_animaton_exporter.cpp 
code. As I understand, there is only one hardwired option now: it loops 
through the frames of the timeline, makes merged snapshots and saves the 
pictures, probably with the image exporters from the plugins/impex folder.

For the CSV format, this is not usable, an image export plugin is not 
enough (or it can be, but that's a very ugly hack). The exporter must go 
through each of the layers separately, while saving pictures only at the 
key frames. Additional information, like the layer's name, blending 
mode, and transparency is also required.

Maybe the actual export system should move into a kind of animation 
export plugin, with the possibility to use other plugins too. Or it can 
remain in the library part, but with an option for this different 
parsing mode. Either way, the CSV export is much easier then. I can 
think about other formats with this layered exporting logic, like: 
Flash, or Kdenlive (or other) video editor formats.

Fazek

2016-02-20 19:18 keltezéssel, Dmitry Kazakov írta:
> Hi, Fazekas!
>
> Thank you very much for your mail. The format you suggest is really
> interesting, I guess we should really have it in Krita. I have only one
> question actually:
>
> 1) Is there any official docs on the file format? I didn't understant only
> one field: "Field Mode". The only link I found is this [0]. But it doesn't
> have a progressive mode...
>
> [0] -
> http://www.tvpaint.com/doc/tvp11/index.php?id=lesson-first-steps-guides-animator-field
>
> PS:
> Btw, I you like, you can implement a plugin for Krita yourself. We already
> have a PNG export/import, we just need to save the proper CSV :) I will
> have time for that at the best in the end of April... :(
>
>
>
> _______________________________________________
> Krita mailing list
> kimageshop@kde.org
> https://mail.kde.org/mailman/listinfo/kimageshop

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    <div class="moz-cite-prefix">Hi Dmitry,<br>
      <br>
      I've downloaded the Krita source and now I'm trying to understand
      it.<br>
      <br>
      First of all, my system (Ubuntu 14.04) seems won't be able to
      compile Krita. A lot of things are missing (extra-cmake-modules,
      KF5 parts). What is the recommended environment to compile this
      monster? Is it worth to try it on 14.04? Also, if there is any
      good source of api documentation about QT5 and Krita please tell
      me. Thanks.<br>
      <br>
      I checked how could be possible to export into the CSV format. I
      have no idea about the importing side yet. Blender's Python plugin
      system was better, it's very easy to use.<br>
      <br>
      The animation export in Krita goes through the
      kis_animaton_exporter.cpp code. As I understand, there is only one
      hardwired option now: it loops through the frames of the timeline,
      makes merged snapshots and saves the pictures, probably with the
      image exporters from the plugins/impex folder.<br>
      <br>
      For the CSV format, this is not usable, an image export plugin is
      not enough (or it can be, but that's a very ugly hack). The
      exporter must go through each of the layers separately, while
      saving pictures only at the key frames. Additional information,
      like the layer's name, blending mode, and transparency is also
      required.<br>
      <br>
      Maybe the actual export system should move into a kind of
      animation export plugin, with the possibility to use other plugins
      too. Or it can remain in the library part, but with an option for
      this different parsing mode. Either way, the CSV export is much
      easier then. I can think about other formats with this layered
      exporting logic, like: Flash, or Kdenlive (or other) video editor
      formats.<br>
      <br>
      Fazek<br>
      <br>
      <br>
      2016-02-20 19:18 keltezéssel, Dmitry Kazakov írta:<br>
    </div>
    <blockquote
cite="mid:CAEkBSfULiHe2t4=v-qN=uDnsysgfwU5iSq5uQ8ep89UDWkH9rQ@mail.gmail.com"
      type="cite">
      <pre wrap="">Hi, Fazekas!

Thank you very much for your mail. The format you suggest is really
interesting, I guess we should really have it in Krita. I have only one
question actually:

1) Is there any official docs on the file format? I didn't understant only
one field: "Field Mode". The only link I found is this [0]. But it doesn't
have a progressive mode...

[0] -
<a class="moz-txt-link-freetext" \
href="http://www.tvpaint.com/doc/tvp11/index.php?id=lesson-first-steps-guides-animator \
-field">http://www.tvpaint.com/doc/tvp11/index.php?id=lesson-first-steps-guides-animator-field</a>

PS:
Btw, I you like, you can implement a plugin for Krita yourself. We already
have a PNG export/import, we just need to save the proper CSV :) I will
have time for that at the best in the end of April... :(

</pre>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
Krita mailing list
<a class="moz-txt-link-abbreviated" \
href="mailto:kimageshop@kde.org">kimageshop@kde.org</a> <a \
class="moz-txt-link-freetext" \
href="https://mail.kde.org/mailman/listinfo/kimageshop">https://mail.kde.org/mailman/listinfo/kimageshop</a>
 </pre>
    </blockquote>
    <br>
  </body>
</html>

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_______________________________________________
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