Matt Tillman

Heileif
Im only on my phone.

But if I remember correctly you only need create a string attribute named purpose with purpose you want as value.

That's definitely the case for sending geo from sops to lops. I think cdordelly is asking about a clear attribute to show what the purpose was when getting geo into sops from lops.

I had a quick look and I ran into the same thing, an intrinsic array is created that ends up being the same across all geo so you need to rely on the path to determine the purpose.

Yeah just trying to avoid any double handling of renders.

I agree it's not ideal, I'm just trying to meet the preference of the comper.
The project is EXTREMELY large scale and so it's an odd case in that filesize is more important than precision. I'm already having to normalise the data to fit the 0-1 range for the pngs anyway.

I might be able to convince them to go with compressed exr sequences if I can get the data into the colour channel to avoid them having to extract it for every pass.

I figured it might be unlikely but thought I'd ask just in case.
The comper is specifically requesting separate png sequences.

Bonus question for anyone out there:
Can you render AOVs as exrs but to the C(rgba) channel?
If I output an AOV as a separate sequence, depth for example, it will output an exr sequence with no colour data and depth in the depth channel, requiring compositors who use After Effects to make the extra step of extracting the AOV data out to be used. Effectively being forced to use the multichannel workflow on single channel sequences.