Hello everyone

I think I understood that one of the things that I criticize about Solaris is the time that the USD rop takes, with the use of the HUSK to do simple rendering (negligible time when it comes to launching an animation), while rendering in the viewport is very fast.

To overcome this problem, when I render a still image, I go through "render gallery" where I launch a background render.
This goes as fast as via the viewport, and therefore much faster than using USD rop.
The rendered image is automatically saved in the "galleries" folder, in exr which I can open afterwards in my compositing software.

The problem is that the cryptomatte doesn't work. In the Gallery render it displays well, but is unusable in software (like nuke for example...).

Am I missing something?

Here you can fin a screenshot and the houdini file :

Can you log a bug for this? I won't be able to look for a few days and I don't want to forget about it.

Definitely log a bug for this. The layer data is there. I downloaded your file and if you view the render gallery EXR and switch the viewer to view the Cryptomatte channel, you can clearly see the cryptomattes. But for some reason the cryptomatte node in Nuke isn't reading it properly. There must be a formatting bug in the way its being written into the file.