Trouble exporting texture to Meshlab

[William Ringle]

This may be more a Meshlab than Photoscan issue, but several times recently when I export an .obj model from Photoscan, when I import it into Meshlab, the texture will not import. The Meshlab message says:

Error encountered while loading file (xxx.obj).

Error details: Some materials definitions were not found , a default white material is used where no material was available.

The texture .jpg is in fact in the same folder, and I sometimes have models whose texture loads just fine.

As indicated, only the shaded mesh imports. I have tried clicking the UDIM option on and off when exporting, and fixing the topology of the mesh as well. Same result.

Any ideas?

[Alexey Pasumansky]

Hello William,

What's the size and resolution of the texture atlas? Also is the texture/model filename is shorter than eight symbols?

[William Ringle]

As usual, thanks for the excellent user service, Alexey. I had tried both 4096 and 8192 without success. BUT when I just exported it as a 5-letter file name, bingo, it worked. So thanks for that! Hadn't noticed that limitation in Meshlab.