merge exr and autocrop bug

[s.des...@gmail.com]

Hello,

We are facing a strange autocrop issue with our merge exr rendering.

The autocrop seems to be broken when we render a beauty and the lightgroups in a merge exr.

If I render a beauty only everything is fine. the render and autocrop are just fine

If I render a beauty + lightroups in a single exr, the autocrop is broken and the render is incorrect (we can get black render or just see a part of the render)

If I render a beauty + lightgroups in a single exr and disable the autocrop, everything is fine.

Is it a gaffer / exr bug ? I have attached a simple gaffer script to this message how show the issue

Thx,

Seb

[Daniel Dresser]

Hmm, I don't see any way that this could be a Gaffer bug - the relevant data is all passed to Arnold in a pretty simple way.

My usual approach for this sort of bug: if you set the Gaffer Render node to "Scene Description", you can create a Arnold archive that you can render from the command line with `kick`. If that shows the same problem ( and a quick skim of the text archive format doesn't show anything bizarre in how Gaffer has set up the archive ), then it would basically be confirmed to be an Arnold bug, and you could contact SolidAngle about it.

-Daniel