- User Since
- May 6 2009, 11:18 PM (524 w, 2 d)
Thu, May 23
Wed, May 22
Thanks for reporting this issue.
Tue, May 21
The dae file is not very helpful here, so I tried with a fresh UV Sphere and i could not get Blender to crash. Please attach the blend file that breaks Blender when exporting.
Sat, May 4
I believe that i know what actually happens.
Fri, May 3
As far as i know the concept of drivers is not directly supported by Collada and FBX.
@Brendon Murphy (meta-androcto) However this is actually a long term issue with Blender :(
See the blender manual:
Thu, May 2
As a quick first note: One reason why bones get silently dropped is when their size is calculated to be 0, in python it would happen if for example:
Sun, Apr 28
Thanks for reporitng!
I took a quick first look at your demo file and here are some quick responses:
Apr 25 2019
@Francesco Sorrentino (zeirus) : Can you provide a demo blend file so that i can be sure i am inspecting what you actually mean and not what i think that you mean ? Thanks!
Apr 24 2019
sorry. Easter holidays stepped in between :)
Apr 11 2019
last time i was looking into this the material system was not yet fully completed. Because of this the material support is not yet fully finished. It is on the todo list for 2.80. Maybe better look at this as "not yet there" instead of "three steps backwards" :)
Apr 10 2019
Ops... i completely forgot about this one :( I guess we can get this to work in 2.80 :)
Apr 4 2019
I think this was a mistake. I realized shortly after i created this diff that it actually did not fix what i thought it would fix :( and i should have deleted it right away, sorry.
Apr 1 2019
Mar 31 2019
Mar 25 2019
Mar 20 2019
I have talked with Kent online and he clarified that the issue has already been resolved. So i close this ticket now.
Mar 19 2019
Mar 7 2019
This patch now has been replaced with a more complete fix for blender 2.80.
Thanks again for reporting this issue! This was truly a good find!
thanks for the patch. I took a look at this and i found that actually the shader value is not a color but a factor, so the function returns completely wrong data. So actually Collada should not export a specular color but a specular factor. I will add a fix for this.
Feb 27 2019
Please avoid to reuse this report for followup issues.
This issue has been fixed and this report has been closed.
Feb 23 2019
Feb 22 2019
google search: principled bsdf shader blender
Hi, @Kent Davis (mac4kent) I now see what your issue is: You have disabled Nodes in your materials. This is currently not supported by the Collada exporter. So, at least for now you have to enable nodes on your materials and use the Base Color in the Principled BSDF Shader.
@Kent Davis (mac4kent) I believe that your Blender is not up to date. Please can you download and try the newest Blender from 22-feb-2019.
Here is a quick link: https://builder.blender.org/download/blender-2.80-9541ce2c261b-OSX-10.9-x86_64.zip
<transparent> must set all color values to 1 according to a comment in the code the attribute opaque="A_ONE" seems to be the clue here. Alpha is taken from Material->alpha_threshold which is filled from the principled BSDF Shader's Base color (alpha part) If a material has no Alpha_threshold (alpha_threshold=1), then the transparent node is not created in the exported collada file.
Feb 20 2019
@Chris Evans (mgchris) i already fixed it in master. thanks for the find!!!
@Kent Davis (mac4kent): You could help finding the reason for the issue. for example you could check if removing the <transparent> tag from the dae file would make the mac viewer able to display the file. Would that be too much to ask for ? As it is in your own interest.
Feb 19 2019
@Chris Evans (mgchris) thanks you for helping! I have added back the feature to use <triangles> instead of <polylist> for meshes which only use triangles. You can find the fix in master (commit df8bd07313b52a69b17fbd0dc1f84637264e86ed ) and yes, Blender uses git :)
@Chris Williamson (chris): When Blender exports a triangulated object, it should use <triangles> and not <polylist>. So, this certainly is a regression. thanks for your find!
Feb 12 2019
While you are waiting you could try to figure out what exactly your viewer does not like in the Collada file. Since i have no Mac i can only guess. But you can inspect. Any information about the cause of the problem would help a lot.
Feb 2 2019
Please do this:
Jan 29 2019
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?
Jan 28 2019
Jan 12 2019
Blender should not loose vertices, edges or faces on import, at least not with Collada.
Jan 10 2019
Thanks again for the patch.
It is now commit to master
Thanks for this report!
I fixed the set enumeration to start with "0" (like in blender 2.7) instead of "1"
Thanks for the patch! It looks ok to me.
- fix unreported: collada mesh importer: Remove duplicate calculation of Normals.
Jan 7 2019
Jan 6 2019
Fortunately the unexpected behavior is actually very expected but it needs to be documented better. The problem is that Collada does not support bone chains (connected bones) out of the box. While this is not very important for importing models to target systems (game engines) it is a bit annoying when you want to move a model between 3D editing tools.
Jan 5 2019
Thanks for the updated blendfiles.
I can not open the blend file:
Dec 14 2018
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 9 2018
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 7 2018
I fiddled a bit with your proposal...from those i like the second from the left best. However, if none of those alternatives work for you, then i'd go with your favorite (top/down arrows)
Thumbs up from me for the third one as well:)