Cryptomatte - For objects behind other refractive objects

[Morne]

Not sure where th issue lies, but I cant get this to work just yet for objects behind other refractive objects. The refractive objects (even with affect all channels) come through as solid, hiding the stuff behind it)

A) Is it a general Cryptomatte limitation?
B) Is it a VRay implementation of Cryptomatte limitation?
C) Is it a limitation of the reader I'm using, namely EXR-IO 2.0 plugin for PS

[Svetlozar Draganov]

It's limitation. It's also mentioned in Doc's:
https://docs.chaosgroup.com/display/...RayCryptomatte

[Morne]

ah, ok thanks Svetlozar
Anybody know if that will be added some time down the line?

[Svetlozar Draganov]

According to our Devs, it's a limitation in the Cryptomatte itself, so we can't tell what would or might happen.
Other render engines doesn't support Refractive/Reflective Cryptomattes as well:
https://forum.isotropix.com/viewtopic.php?f=5&t=5019

[Igor]

Not sure where th issue lies, but I cant get this to work just yet for objects behind other refractive objects. The refractive objects (even with affect all channels) come through as solid, hiding the stuff behind it)

A) Is it a general Cryptomatte limitation?
B) Is it a VRay implementation of Cryptomatte limitation?
C) Is it a limitation of the reader I'm using, namely EXR-IO 2.0 plugin for PS

Hello Morne

you have probably not read my answer in another thread after asking about it.
EXR-IO can read transparency behind objects. You can test it with the Arnold. Arnold has the Blend Function for this case.
https://docs.arnoldrenderer.com/page...ageId=81724187

Vray will have it probably so it is only the question of time till guys do it

thanks
best regards