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Collada Import & Export

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Tue, Jan 29

Gaia Clary (gaiaclary) added a comment to T60901: Collada exporter replacing names that starts with a number with an underscore.

This issue has already been fixed in the master branch (for Blender 2.80). I also believe that this particular issue has been there since ever. Maybe back porting the fix to 2.79 might not be too important?

Tue, Jan 29, 5:15 PM · Collada, BF Blender
Sebastian Parborg (zeddb) assigned T60901: Collada exporter replacing names that starts with a number with an underscore to Gaia Clary (gaiaclary).
Tue, Jan 29, 2:49 PM · Collada, BF Blender

Mon, Jan 28

Brett Falefee (falefee) added a comment to T60901: Collada exporter replacing names that starts with a number with an underscore.

I also have this same issue.

Mon, Jan 28, 7:05 PM · Collada, BF Blender

Sun, Jan 27

Mick Pearson (Mick-P) added a comment to T60901: Collada exporter replacing names that starts with a number with an underscore.

(Messed up these comments forms default to Change Status: Resolved!)

Sun, Jan 27, 7:26 AM · Collada, BF Blender

Sat, Jan 26

Giovanne Deni Iorio (DGIorio) created T60901: Collada exporter replacing names that starts with a number with an underscore.
Sat, Jan 26, 11:09 PM · Collada, BF Blender

Jan 21 2019

Kent Davis (mac4kent) added a comment to T60697: Collada: multiple Materials problem.

YesI show you example of a collada file with multiply materials/textures that actually displays correctly in Mac, Yes.
Blender 2.79b is fine no error.

Jan 21 2019, 2:49 PM · Import/Export, Collada, BF Blender
Philipp Oeser (lichtwerk) assigned T60697: Collada: multiple Materials problem to Gaia Clary (gaiaclary).

@Kent Davis (mac4kent): thx for checking

Jan 21 2019, 2:45 PM · Import/Export, Collada, BF Blender
Kent Davis (mac4kent) added a comment to T60697: Collada: multiple Materials problem.

@Philipp Kant (philipp) Allright I see you say "Only selected UV Map" I click make uncheck then export. Still same problem.

Jan 21 2019, 2:19 PM · Import/Export, Collada, BF Blender
Philipp Oeser (lichtwerk) added a comment to T60697: Collada: multiple Materials problem.

Just one more thing: Have you tried unchecking "Only selected UV Map" under Export Collada Texture Options?

Jan 21 2019, 2:12 PM · Import/Export, Collada, BF Blender
Kent Davis (mac4kent) added a comment to T60697: Collada: multiple Materials problem.

We talk about Materials:
One can be show (Original).
Two and Three doesn't show

Jan 21 2019, 2:08 PM · Import/Export, Collada, BF Blender
Kent Davis (mac4kent) updated subscribers of T60697: Collada: multiple Materials problem.

@williams (williams) I already put date (January 21, 2018) I show you youtube https://youtu.be/wntTiNXQCgM
@Philipp Kant (philipp) I did not say import. I say Export.

Jan 21 2019, 1:58 PM · Import/Export, Collada, BF Blender
Philipp Oeser (lichtwerk) updated subscribers of T60697: Collada: multiple Materials problem.

subscribing @Gaia Clary (gaiaclary) here to comment on this (not sure for example if something like T33744 still applies....)

Jan 21 2019, 1:58 PM · Import/Export, Collada, BF Blender
Philipp Oeser (lichtwerk) added a comment to T60697: Collada: multiple Materials problem.

Have you checked importing that .dae back to blender?
(Since you seem to be judging this by inspecting in the MAC filebrowser)

Jan 21 2019, 1:54 PM · Import/Export, Collada, BF Blender
William Reynish (billreynish) added a comment to T60697: Collada: multiple Materials problem.

@Kent Davis (mac4kent): Blender uses the same codebase on the Mac as other platforms. There may be sligt differences caused by differences in GPU's and other things, but Blender is basically the same on Mac, Windows and Linux. For this reason, the platform (Mac) is very unlikely to be the cause of most bugs.

Jan 21 2019, 1:47 PM · Import/Export, Collada, BF Blender
Kent Davis (mac4kent) added a comment to T60697: Collada: multiple Materials problem.

I show you youtube. https://youtu.be/wntTiNXQCgM
Please do it use Macintosh not use Windows.

Jan 21 2019, 1:44 PM · Import/Export, Collada, BF Blender
Kent Davis (mac4kent) added a comment to T60697: Collada: multiple Materials problem.

Did you use Macintosh?

Jan 21 2019, 1:31 PM · Import/Export, Collada, BF Blender
Philipp Oeser (lichtwerk) added projects to T60697: Collada: multiple Materials problem: Collada, Import/Export.
Jan 21 2019, 1:29 PM · Import/Export, Collada, BF Blender

Jan 13 2019

Mick Pearson (Mick-P) updated subscribers of D4187: Collada Importer Material Assignment Fix.

@Gaia Clary (gaiaclary) Sure, but the thrust of this (COLLADA) ticket IS losing primitives. The materials are lost because the primitives are discarded @Trevor Glauz (TSGlauz) says this defect is something core to Blender.

Jan 13 2019, 8:00 AM · Collada

Jan 12 2019

Gaia Clary (gaiaclary) added a comment to D4187: Collada Importer Material Assignment Fix.

Blender should not loose vertices, edges or faces on import, at least not with Collada.

Jan 12 2019, 9:41 AM · Collada
Mick Pearson (Mick-P) added a comment to D4187: Collada Importer Material Assignment Fix.

Removing duplicate edges/faces is just how blender works since it is considered invalid data. You can have duplicate vertices, though. And with duplicate vertices, you can overlap faces that use entirely different vertices that sit in the exact same positions. You can also duplicate triangles into separate meshes and overlap them that way.

Jan 12 2019, 8:55 AM · Collada
Trevor Glauz (TSGlauz) added a comment to D4187: Collada Importer Material Assignment Fix.

Removing duplicate edges/faces is just how blender works since it is considered invalid data. You can have duplicate vertices, though. And with duplicate vertices, you can overlap faces that use entirely different vertices that sit in the exact same positions. You can also duplicate triangles into separate meshes and overlap them that way.

Jan 12 2019, 6:38 AM · Collada
Mick Pearson (Mick-P) added a comment to D4187: Collada Importer Material Assignment Fix.

Excuse me, can I ask about the "primitive deletion" thing? Something like this happens in many importers, and it is making working with Blender very difficult, since I work with game data, that is always importing/exporting. I provided an example of an OBJ file (3DS does it too but less so) in a bug report a little while back and a real **** (awful developer) here named Sebastian tanked it immediately saying deleted polygons is a beloved feature of Blender. I'm just curious if there could be a connection. (In games overlapping elements is required and fundamental, and also in Blender I've never had a problem with this. Normally importers that lose data or destroy things are not published, and heads roll. I don't understand Blender culture. It's like a den full of nasty punks. The opposite of what you want for software work.)

Jan 12 2019, 5:01 AM · Collada

Jan 10 2019

Gaia Clary (gaiaclary) closed D4187: Collada Importer Material Assignment Fix.

Thanks again for the patch.
It is now commit to master

Jan 10 2019, 8:31 PM · Collada
Gaia Clary (gaiaclary) accepted D4187: Collada Importer Material Assignment Fix.
Jan 10 2019, 8:30 PM · Collada
Trevor Glauz (TSGlauz) added a comment to D4187: Collada Importer Material Assignment Fix.

You're right, that's an unnecessary extra normals calculation.

Jan 10 2019, 6:59 PM · Collada
John Ostrom (macnib) added a comment to T60049: Collada Export UV Set.

Sounds good! Much appreciated!

Jan 10 2019, 3:32 PM · Collada, BF Blender
Gaia Clary (gaiaclary) added a comment to T60049: Collada Export UV Set.

Thanks for this report!
I fixed the set enumeration to start with "0" (like in blender 2.7) instead of "1"

Jan 10 2019, 1:17 PM · Collada, BF Blender
Gaia Clary (gaiaclary) closed T60049: Collada Export UV Set as Resolved by committing rB80281e34fd41: fix T60049: Collada Exporter: When exporting multiple UVs, the set index must….
Jan 10 2019, 1:15 PM · Collada, BF Blender
Gaia Clary (gaiaclary) added a comment to D4187: Collada Importer Material Assignment Fix.

Thanks for the patch! It looks ok to me.

Jan 10 2019, 11:51 AM · Collada
Gaia Clary (gaiaclary) updated the diff for D4187: Collada Importer Material Assignment Fix.
  • fix unreported: collada mesh importer: Remove duplicate calculation of Normals.
Jan 10 2019, 11:44 AM · Collada
Trevor Glauz (TSGlauz) updated the summary of D4187: Collada Importer Material Assignment Fix.
Jan 10 2019, 2:25 AM · Collada
Trevor Glauz (TSGlauz) created D4187: Collada Importer Material Assignment Fix.
Jan 10 2019, 2:24 AM · Collada

Jan 2 2019

Brecht Van Lommel (brecht) assigned T60049: Collada Export UV Set to Gaia Clary (gaiaclary).
Jan 2 2019, 2:38 PM · Collada, BF Blender
John Ostrom (macnib) created T60049: Collada Export UV Set.
Jan 2 2019, 12:38 AM · Collada, BF Blender

Dec 14 2018

Gaia Clary (gaiaclary) added a comment to T58451: Dae parsing issue.

There are many reasons for getting parsing errors with Collada. But really, this report system is for reporting errors related to Blender and not so much about importing issues into target engines. Unless a target engine complains about wrong Collada format, then we are back at work here. But then we also need to know what the complaints are exactly. And a demo blend file of course, as always :)

Dec 14 2018, 5:48 PM · Import/Export, Collada, BF Blender
Original Character (OriginalCharacter) added a comment to T58451: Dae parsing issue.

Uh Gaia, I have another object with a dae parsing issue that has a normal scale ( the transform scale all 1.1.1? Is this what you mean?) Do you know what issues are likely to be causing this? It's hard to find recources on making models for Secondlifeand opensim :/

Dec 14 2018, 4:36 PM · Import/Export, Collada, BF Blender

Dec 13 2018

Kent Davis (mac4kent) added a comment to T58430: Blender 2.79b materials preview..

Ok close this task.

Dec 13 2018, 11:03 PM · Collada
Bastien Montagne (mont29) closed T58430: Blender 2.79b materials preview. as Archived.

More than a week without reply or activity. Due to the policy of the tracker archiving for until required info/data are provided.

Dec 13 2018, 10:49 PM · Collada

Dec 9 2018

Gaia Clary (gaiaclary) added a comment to T48591: COLLADA exports often have wrong textures assigned to materials.

I am sorry, i overlooked that the textures are present in the zip file. I give it another look later. It may also well be the case that the issue has been resolved as i am steadily (and admittedly only very slowly) working on fixing the Collada exporter since about 4 years now. Also with Blender 2.8 everything changes :) The new Collada exporter is already in the 2.8 Beta but it has not yet been tested to the very details.

Dec 9 2018, 11:12 AM · Collada
Jeremy Lee (JediJeremy) added a comment to T48591: COLLADA exports often have wrong textures assigned to materials.

@Gaia Clary (gaiaclary) I'm not sure what you mean by "updated blendfile with all the textures included". The .zip file I submitted contained all the textures in an external directory, because that's how the bug presented in this case, and given the intermittent nature of the bug, there's no guarantee that changing the structure of the example will preserve the issue.

Dec 9 2018, 10:31 AM · Collada

Dec 5 2018

Shane Ambler (sambler) added a comment to T58568: Add support for opencollada >= 1.6.65.

@Gaia Clary (gaiaclary) Seeing that the collada releases from 1.6.64 to 1.6.68 were all tagged in less than two months I would just make 1.6.68 the required version. If anyone is updating from 1.6.63 there is really no reason to build any version before 1.6.68.

Dec 5 2018, 9:21 AM · Collada, BF Blender

Dec 4 2018

Original Character (OriginalCharacter) added a comment to T58451: Dae parsing issue.

Thank you for your input! Actually I found a solution that seems to be working! Somebody happened to tell me that it's a bug and I should report it :P I probably should have tried a bit harder to research first!

Dec 4 2018, 8:46 PM · Import/Export, Collada, BF Blender
Gaia Clary (gaiaclary) added a commit to T58568: Add support for opencollada >= 1.6.65: rB22bba02bc810: fix T58568: used wrong case in variable name.
Dec 4 2018, 8:29 PM · Collada, BF Blender
Gaia Clary (gaiaclary) added a comment to T58568: Add support for opencollada >= 1.6.65.

While adding the fix, i found that the related definition files are available only since Collada 1.6.68 So this fix will only work for Collada 1.6.68 or newer.

Dec 4 2018, 8:03 PM · Collada, BF Blender
Gaia Clary (gaiaclary) closed T58568: Add support for opencollada >= 1.6.65 as Resolved by committing rB10c50d7dbf75: fix T58568 build errors when using collada 1.6.68 or newer.
Dec 4 2018, 7:12 PM · Collada, BF Blender

Dec 3 2018

Gaia Clary (gaiaclary) added a comment to T58451: Dae parsing issue.

This particular "DAE parsing issue" is caused by negative object scaling which the importers to SL and OpenSim seem to reject (see error logs in the Viewer). However negative Scales are actually not forbidden by the Collada specifications, so this is not an error in the Collada Exporter, but an error in the Model.

Dec 3 2018, 7:13 PM · Import/Export, Collada, BF Blender
Bastien Montagne (mont29) assigned T58451: Dae parsing issue to Gaia Clary (gaiaclary).

@Gaia Clary (gaiaclary) Guess that one is for you :)

Dec 3 2018, 5:30 PM · Import/Export, Collada, BF Blender
Brecht Van Lommel (brecht) added a comment to T58568: Add support for opencollada >= 1.6.65.

In the worst case we can check for the existence of a COLLADAFWAnimationClip.h file in CMake, but would be nice if OpenCollada had version defines.

Dec 3 2018, 2:11 PM · Collada, BF Blender
Gaia Clary (gaiaclary) added a comment to T58568: Add support for opencollada >= 1.6.65.

I could not find an easy way to get the library version number. So i asked in the opencollada project:

Dec 3 2018, 1:45 PM · Collada, BF Blender
Brecht Van Lommel (brecht) added a comment to T58568: Add support for opencollada >= 1.6.65.

If this patch is required to build with new opencollada libraries, it should be committed to master & blender2.8 before the libraries are upgraded.

Dec 3 2018, 11:29 AM · Collada, BF Blender