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Collada Import & Export

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Sun, Dec 9

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.

Sun, Dec 9, 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.

Sun, Dec 9, 10:31 AM · Collada

Wed, Dec 5

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.

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

Tue, Dec 4

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!

Tue, Dec 4, 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.
Tue, Dec 4, 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.

Tue, Dec 4, 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.
Tue, Dec 4, 7:12 PM · Collada, BF Blender

Mon, Dec 3

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.

Mon, Dec 3, 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 :)

Mon, Dec 3, 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 worse case we can check for the existence of a COLLADAFWAnimationClip.h file in CMake, but would be nice if OpenCollada had version defines.

Mon, Dec 3, 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:

Mon, Dec 3, 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.

Mon, Dec 3, 11:29 AM · Collada, BF Blender
Gaia Clary (gaiaclary) triaged T58568: Add support for opencollada >= 1.6.65 as Confirmed priority.

The support for action clips has already been prepared in the Blender Collada module since march 2018, but discarded because actually i was waiting for https://github.com/KhronosGroup/OpenCOLLADA/issues/565

Mon, Dec 3, 11:26 AM · Collada, BF Blender
Brecht Van Lommel (brecht) assigned T58568: Add support for opencollada >= 1.6.65 to Gaia Clary (gaiaclary).
Mon, Dec 3, 1:02 AM · Collada, BF Blender
Shane Ambler (sambler) created T58568: Add support for opencollada >= 1.6.65.
Mon, Dec 3, 12:57 AM · Collada, BF Blender

Sat, Dec 1

Gaia Clary (gaiaclary) updated the task description for T58430: Blender 2.79b materials preview..
Sat, Dec 1, 4:31 PM · Collada
Gaia Clary (gaiaclary) updated the task description for T58430: Blender 2.79b materials preview..
Sat, Dec 1, 4:31 PM · Collada
Kent Davis (mac4kent) added a comment to T58430: Blender 2.79b materials preview..

Oh allright I will do.
Blender 2.79b document .blend.
I will do soon.

Sat, Dec 1, 4:31 PM · Collada
Gaia Clary (gaiaclary) edited projects for T58430: Blender 2.79b materials preview., added: Collada; removed BF Blender.
Sat, Dec 1, 4:31 PM · Collada

Wed, Nov 28

Gaia Clary (gaiaclary) closed T58093: Collada exporter: Missing texcoord attribute as Resolved.

@Daniel (bestdani) Thank you for reporting this.

Wed, Nov 28, 4:00 PM · Collada, BF Blender: 2.8, BF Blender
Bastien Montagne (mont29) assigned T58093: Collada exporter: Missing texcoord attribute to Gaia Clary (gaiaclary).
Wed, Nov 28, 10:45 AM · Collada, BF Blender: 2.8, BF Blender

Tue, Nov 27

Daniel (bestdani) created T58093: Collada exporter: Missing texcoord attribute.
Tue, Nov 27, 5:00 PM · Collada, BF Blender: 2.8, BF Blender
Mick Pearson (Mick-P) added a comment to T48591: COLLADA exports often have wrong textures assigned to materials.

@Gaia Clary (gaiaclary) I think what Blender needs is a node system specifically oriented to Collada. If it is moving to an open-ended system, it could be a good opportunity to design something. Like in Blender I'm familiar with (2.8 looks like a departure) I know it has legacy Blender Render, and also Cycles, which looks completely separate. What Collada needs is its own separate node system, kind of like another flavor/alternative render system that can live in the Blend files, alongside the others. I struggle to imagine how COLLADA can be used in the future for anything, but I stick with it because we so desperately need open standards for 3D.

Tue, Nov 27, 10:52 AM · Collada
Gaia Clary (gaiaclary) added a comment to T48591: COLLADA exports often have wrong textures assigned to materials.

@Mick Pearson (Mick-P) In blender 2.8 we only have materials. So the Collada Module must treat this reasonably. I have added material support in the 2.8 branch only a few days ago, and for now it only can treat diffuse color textures. However this is not yet well tested. And more material support is coming as soon as the principled BSDF Shader gets some planned improvement (transparency and emission).

Tue, Nov 27, 8:54 AM · Collada
Mick Pearson (Mick-P) added a comment to T48591: COLLADA exports often have wrong textures assigned to materials.

I've seen this. I don't think it's a COLLADA module problem per se. I think it indicates one of the primitives (maybe not necessarily a face) is somehow linked to an image via the UV Editor. I can't remember if the linked image is visible in Texture display mode. I don't think so. But what works is to Select All of the faces in Edit mode, and then Deselect by material to filter out materials, and finally assign the remaining selection (which may even appear to have nothing selected) and then either Delete, or assign to an image in the UV Editor, and optional Assign to a material

Tue, Nov 27, 1:15 AM · Collada

Mon, Nov 26

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

Ok, i admit that is a late response. But if possible could you redo the blend file and pack the textures into it so that i can check this issue ?

Mon, Nov 26, 11:53 PM · Collada
Gaia Clary (gaiaclary) closed T54456: Collada Animation Exporter and Importer rework as Resolved.

The Collada module has been reworked and released to the blender2.8 branch. the changes described above have all been added. However there are still some fixes to be done as follow up tasks.

Mon, Nov 26, 11:38 PM · Collada
Gaia Clary (gaiaclary) closed T56852: Rotated armature changes position after two round trips as Resolved.

This issue is fixed in Blender 2.8 - beta (or most recent developer build)

Mon, Nov 26, 11:35 PM · Import/Export, Collada, BF Blender

Oct 31 2018

Kopan Manut (kopmarn) added a comment to T55519: Blender (silently) fails when importing Sketchup Collada File.

I am also facing same issue. Unable to import. I am trying to make exactly this type of toilets https://bestflushingtoilet.org/american-standard-toilets/champion-4-reviews/. But, I am failing to do it.

Oct 31 2018, 4:13 PM · Collada, Import/Export, BF Blender

Oct 27 2018

Mick Pearson (Mick-P) added a comment to T52751: Import/Export from/to Collada: issue with diffuse color/diffuse texture.

FWIW here is what I recommend:

Oct 27 2018, 10:56 AM · Collada, BF Blender
Mick Pearson (Mick-P) added a watcher for Collada: Mick Pearson (Mick-P).
Oct 27 2018, 5:51 AM

Sep 30 2018

Aaron Carlisle (Blendify) added a project to T54456: Collada Animation Exporter and Importer rework: Collada.
Sep 30 2018, 6:46 PM · Collada

Sep 24 2018

Christoph Werner (Taros) added a comment to T52751: Import/Export from/to Collada: issue with diffuse color/diffuse texture.

Hi Gaia.

Sep 24 2018, 3:19 PM · Collada, BF Blender

Sep 20 2018

Gaia Clary (gaiaclary) claimed T56852: Rotated armature changes position after two round trips.
Sep 20 2018, 11:09 AM · Import/Export, Collada, BF Blender
Roselle (cereszal) created T56852: Rotated armature changes position after two round trips.
Sep 20 2018, 10:23 AM · Import/Export, Collada, BF Blender

Sep 13 2018

Christoph Werner (Taros) added a comment to T52751: Import/Export from/to Collada: issue with diffuse color/diffuse texture.

supporting cycles is on the list. However since Blender 2.8 dropped blender render and comes with a much bigger challenge (more renderers beside Cycles), i decided to not rush and look into this for when the time comes for Blender-2.8 support. I already fear that moment :/

Sep 13 2018, 6:20 PM · Collada, BF Blender
Gaia Clary (gaiaclary) added a comment to T52751: Import/Export from/to Collada: issue with diffuse color/diffuse texture.

supporting cycles is on the list. However since Blender 2.8 dropped blender render and comes with a much bigger challenge (more renderers beside Cycles), i decided to not rush and look into this for when the time comes for Blender-2.8 support. I already fear that moment :/

Sep 13 2018, 5:34 PM · Collada, BF Blender
Christoph Werner (Taros) added a comment to T52751: Import/Export from/to Collada: issue with diffuse color/diffuse texture.

OK... now I understand my problem.
I am always using Cycles nodes for all my material settings. To be honest I've never used the Blender Renderer in the history...
So I've checked the values for my material by switching to Blender Render... and voila! There are the settings set.

Sep 13 2018, 5:30 PM · Collada, BF Blender
Gaia Clary (gaiaclary) added a comment to T52751: Import/Export from/to Collada: issue with diffuse color/diffuse texture.

I believe you have kept the color intensity of your material at 0.8...

Sep 13 2018, 4:51 PM · Collada, BF Blender
Christoph Werner (Taros) added a comment to T52751: Import/Export from/to Collada: issue with diffuse color/diffuse texture.

I've narrowed the diffuse color problem. When exporting the diffuse color from Blender the following happen and is definitely a bug.

Sep 13 2018, 3:27 PM · Collada, BF Blender

Sep 4 2018

Bastien Montagne (mont29) assigned T56677: Incorrect parent tree when exporting and importing scene with multiple rigged objects to Gaia Clary (gaiaclary).
Sep 4 2018, 9:19 AM · Collada
Campbell Suter (ZNix) created T56677: Incorrect parent tree when exporting and importing scene with multiple rigged objects.
Sep 4 2018, 7:04 AM · Collada

Sep 3 2018

Bastien Montagne (mont29) assigned T56574: COLLADA Exporter Transform animation by Euler angle is not reflected to Gaia Clary (gaiaclary).

Did not check in detail, but I would guess that’s because Collada uses matrices, which would loose the 'multi-turn' angle, unless you add enough intermediate keyframes?

Sep 3 2018, 2:59 PM · BF Blender, Import/Export, Collada

Aug 29 2018

Gaia Clary (gaiaclary) added a comment to T49814: Collada Import Ignores Vertex Normals.

arghh, yes, i have this still on my list. I had to pause my work on the Blender Collada module for a while, but i am eager to get back on this as soon as possible, to make sure the Collada module will be ready for Blender 2.8

Aug 29 2018, 6:31 PM · Import/Export, Collada
Olivier Tremblay (MelonSpeedruns) added a comment to T49814: Collada Import Ignores Vertex Normals.

Was this ever looked at? It seems like a pretty big issue to me.

Aug 29 2018, 6:10 PM · Import/Export, Collada

Aug 27 2018

hiroshi terashima (telime) created T56574: COLLADA Exporter Transform animation by Euler angle is not reflected.
Aug 27 2018, 3:43 PM · BF Blender, Import/Export, Collada

Aug 1 2018

Gaia Clary (gaiaclary) added a comment to T55790: Failure of playing animation from imported .dae file.

I am currently updating the collada branch from master. i do not know how long it will take. I think that updating master from collada is currently not a good plan since i first want to be sure that the new collada module is clean, documented and stable.

Aug 1 2018, 8:39 AM · Collada, Import/Export, BF Blender
Yann HN (Liz3) added a comment to T55790: Failure of playing animation from imported .dae file.

Merge the changes from collada onto master? Will that work?

Aug 1 2018, 5:49 AM · Collada, Import/Export, BF Blender
Yann HN (Liz3) added a comment to T55790: Failure of playing animation from imported .dae file.

You are free to take the .dae file i added as a reference

Aug 1 2018, 5:48 AM · Collada, Import/Export, BF Blender

Jul 30 2018

Gaia Clary (gaiaclary) added a comment to T55790: Failure of playing animation from imported .dae file.

you probably need to merge from master branch. I will take a look at this.

Jul 30 2018, 9:30 AM · Collada, Import/Export, BF Blender