A 3D model looks jagged all over it when it is viewed outside Metashape.

[yowich]

One of my 3D models looks weird such that it looks jagged all over it when it is uploaded and viewed on Sketchfab. It looks the same way when it is imported into ZBrush. But it looks fine when viewed in Metashape. So I believe it was caused somehow by Metashape. I've used Agisoft Metashape 1.6.1 to create the model. Screenshots on Sketchfab are attached below. Why does it look like this? What to do to deal with this? Only a couple of models I've created so far look that way.

Thanks!

[Alexey Pasumansky]

Hello yowich,

Usually such behavior means that the XYZ coordinate values for the mesh model vertices are truncated while being read by the external application. In many cases the model viewers are using float type (8-bit per value) for the coordinates, which means that in case of UTM projection export, when the XY values are in millions of meters some lower grade digits or decimal are discarded.

To avoid that you can use Local Coordinates export option (providing that the original model IS NOT referenced in local coordinates) or use Shift offset fields in the Export Model dialog to subtract the large values from X and Y coordinates and use only reasonable number of digits.

[yowich]

Hi Alexey,
I did export it in local coordinates.
Please refer to my export settings below (attachment).

[Alexey Pasumansky]

Hello yowich,

In which system the chunk has been referenced in this project? Was it also Local coordinates or some geographic/projected system?

[yowich]

So, not just when I export the model, but also in the reference settings, I need to set it to local.
I wonder why it has been automatically set to WGS84, but anyway, it resolved my issue!
Thanks, Alexey!