[opensource-dev] Mesh upload bug

[Casper Warden]

Hello everyone

I'm writing about a very strange bug that appears to have introduced 
itself into the codebase at some point, concerning materials getting 
confused upon mesh upload.

What happens is a .dae is uploaded with multiple materials.  While the 
viewer recognises that there are multiple materials, the server appears 
to not concur - and when you change the texture on one material, the 
server switches the texture on the other when the next update is sent.

Here's a video exhibiting the issue: 
https://www.youtube.com/watch?v=zp0_w7c5Gf4

The last CONFIRMED WORKING official viewer version was 3.7.28 (300847), 
but I can no longer use this because it's been retired. Singularity is 
NOT affected by this bug. Firestorm is affected. The latest Second Life, 
beta and project viewers are all affected.

At first, it seemed this only occured with models exported from 3D 
Studio Max, but i've also discovered models exported from Blender which 
behave similarly.

If anyone would like to work on this issue, I can send you a copy of an 
affected model.

Ref: https://jira.secondlife.com/browse/BUG-10969

Thank you for your attention.

Casper Warden