Texture export to dae setting or procedural issues Hello my fellow Blender Artists and Enthusiasts,

Testing Models and textures for personal use downloaded off the internet in preparation for a more serious project. 

However, I just cant seem to make it work.

My my best guess, or hypothesis for this problem (or problems) is that my procedure to attach a UV texture map to my mesh and export as a dae.file is somehow incorrect or somehow missing a step.

I have 2 meshes with 2 separate texture maps.

I have tried to assign each map to each mesh separately as well as make sure they were uv unwrapped and attached.

My models (and also my simple animations) export to other display engines such as Aurasma or Sketchfab fine, except they have no textures or colors.

In Aurasma using the dae.export file format to add to a tar and upload, what I get is I see a purple wire mesh only.

In Sketchfab .blend file export (or in-bedded add on), I see a nice model ( white) however, no UV texture map or color.

I can render the test scenes in Blender as a PNG or Movie file, and the colors etc. come out fine.

I export the models and no.

As far as I can tell, (and I have walked through several tutorials to check for proper procedural sequence) I am missing something (probably obvious) to someone more familiar with the settings.

I will attach screen shots and a link to the blend file if helpful at the bottom to try and make it more clear.

I am currently Using Windows 7 Blender version 2.77a.

I am trying to keep it simple and using only blender render.

Some of the things I have tried so far.

Checked settings for Aurasma upload 

https://aurasma.zendesk.com/hc/en-us/articles/205627909-3D-Model-Troubleshooting 

and also 

https://aurasma.zendesk.com/hc/en-us/articles/206382776-3D-Overlay-Specifications-formerly-3D-Guidelines-

I did this (to the best of my knowledge)


Triangulate Faces
Before exporting your model or animation you must triangulate the faces.  To do this, get into Edit Mode (Next to view on bottom – select 3D mode, then select “edit mode” next to mesh. In edit mode, select all faces you need to triangulate, and then press CTR-T.


Export your work as collada (.dae) using the default settings.
Bundle your file with a thumbnail and a sound file....as a TAR

A .tar file should contain:

The exported/scene model using OpenCollada (.dae file)
All textures referenced in the scene file (.png format)
.png thumbnail (256×256 pixels), named thumbnail.png


This didn't work, so then I looked over many tutorials and tried these below. 

https://blenderartists.org/forum/showthread.php?229354-Textures-are-not-exporting-with-collada

and

http://support.ponoko.com/hc/en-us/articles/220291008-How-to-export-a-STL-design-file-using-Blender-2-6-

and 

still making my way through this one....

I also tried editing and looking through my out liner for anomalies following below link and a few other tutorials to see if maybe something wasn't attached right somehow.

http://blender-manual-i18n.readthedocs.io/ja/latest/editors/outliner.html

https://blenderartists.org/forum/showthread.php?344926-dae-files-unable-to-import-textures

My scene and export settings look like this









Download original blend file here

https://drive.google.com/file/d/0Bx2FdbWLpg_oY0phaERWMGg5dGM/view?usp=sharing

Any suggestions are welcome.
I don't know if you resolved this in the end.   I am having the same problem with the png texture files.  After trying lots of different things, I looked inside the dae file from the zenka site and noticed that it was not made using blender but with 3D Studio Max - so no wonder the instructions didn't work.  

I also found this post http://rowanpeter.com/amidoinitrite/a-simple-cube-blender-2-62-and-aurasma-studio/  His dae file is made using blender but again the png texture files do not seem to be recognised by aurasma (or don't anymore, he has provided video evidence that it worked at some point.)

Sorry this isn't really an answer, but I thought knowing that the zenka file was not made with blender might help you.   

If you did find a solution I would be grateful if you could share it with me.  I'll let you know if I have any luck myself!