Cryptomatte render time

[affixxius]

Hello,

Adding cryptomatte as a render AOV seems to elongate my render quite abit.

Its a bigger image than usual (for me), 6480 x 1920, Ive managed to get the render to 2ms per frame (no passes), but when i add them the render goes to 6 mins per frame.
I have removed all passes and rendered with just cryptomatte added, and this seems to be the culprit.
Is this just how it works or is there something im not concidering?

The scene is created with forester, maybe 100 trees and a good covering of grass and ferns (using octane scatter to distribute)

I need mattes..

Thanks
AK

[aoktar]

Copy render logs from Console Windows for both cases. Then we can say something

[affixxius]

Hi Ahmet,

Thank you, attached are the logs.
I appreciate it

Thank you

AK

[aoktar]

Saving for passes are taking extremely long time. I don't expect that too long. Btw you have very low free VRAM, that could be a reason. Could you share the scene via PM with me or support team?

[affixxius]

Great thanks I will do