When It All Goes Wrong … 2

We finished the last page with these two email responses that offered very little advice on why the process had failed:

email_errors

Had I somehow done something out of sequence or forced it to jump off processing the upper one to deal with the lower one – the upper email came in first note.

There had been no error messages along the way, no ‘process running – do not interrupt’ type notifications.

Do I just try the same file again … I decided against that and looked to the Recap Forum for some advice or pointers.

https://forums.autodesk.com/t5/recap-forum/bd-p/451

… seems like a good place to start … search on ‘Mesh Failure’ … oh – it’s not just me then.

This inconspicuous nugget of information caught my eye, penned by one of the Recap programming team – who should know how things work:

scan_names

If you can’t read that it says – in ANGRY UPPER CASE:

‘ONE THING TO CHECK: WE HAVE RECENTLY FOUND AN ISSUE WHERE MESH GENERATION CAN FAIL IF THE SCAN NAMES CONTAIN SPACES OR SPECIAL (NON ASCII) CHARACTERS. A FIX IS IN THE WORKS.

This bit of advice should be offered by the mobile app as you choose a name for your project … right back at stage 1!  But I suppose the Mesh creation is in Beta … good get out clause that.

So … off we go again.

I copied the original combined project file and all support folders, the new project would have a short, all lower case name – some web servers do not appreciate mix of upper and lower cases.

new_project

The material from the previous support folder was put in a folder simply called ‘scan’.

In the scan folder I initially renamed only the .rcc files (the point info), started a brand new project (with short lower case name) and imported the point clouds … interesting result:

import_rcs_only

Very artistic – looks like an impressionist mess from the 70’s.

I took this renaming opportunity to bring a bit of order to things, 1_01, 1_02, 2_01, 2_02, etc as you can see here:

file_renaming

Now when you import the point cloud it goes through the whole registration process again.

import_renamed_scans

Notice the scans have been grouped – it can see how you grouped the scans right back on the iPad.

The project was divided in a simpler manner – left and right. and then published.

revised_limits

Success:

mesh_created

The same (medium resolution scanned) project was used to generate the 3 quality levels of meshes – low, medium and high.   This graphic shows the resultant mesh in low and high versions, with and without the mapped material.

mesh_quality

Combining meshes in 3ds max is not easy however – because you cannot save a selection area (like you can in Photoshop) you end up with some overlap of models – this is not good for rendering accuracy.