UVUnwrapper.js contains obsolete `addAttribute()` function

[GitHubDragonFly]

Describe the bug

It appears that three.js revisions higher than r140 would throw an error while r139 and r140 log a warning about the addAttribute function being renamed to setAttribute.

Expected behavior

Using the setAttribute() function should eliminate both warnings and errors.

Screenshots and Repro Model

This particular unwrapper I tested as an independent import just to see if it can function as such, without using the three-gpu-pathtracer library (so not sure where exactly in the library this unwrapper might be used).

Platform:

• Device: [Laptop]
• OS: [Windows]
• GPU: [integrated NVidia GeForce]
• Browser: [Firefox]
• Browser Version: [132.0 (64-bit)]
• Three.js version: [r140+]
• Library version: [v0.0.23]

[gkjohnson]

Thanks - the UVUnwrapper class isn't used and hasn't really been developed and isn't exposed. It was originally added with the plans to (eventually) build it out to support uv unwrapping but that never happened. #670 adds support for some more complete utilities for uv unwrapping and ao mapping but there are still some more changes needed, I think.

The xatlas-three is also a very good xatlas uv unwrapper implementation.

[GitHubDragonFly]

Just as an FYI, there is a topic in the forum which shows how I experimented with a modified version from your repository and with xatlas-three after you suggested it.