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Foreground object alpha broken in R26

Posted: Thu Sep 22, 2022 1:14 pm
by Hurricane046
Hello!

We've been used to framing full-frame shots by using letterbox.png hooked via native C4D material in the Foreground Object. It seems to stopped working in the R26.
I'm the third person at our studio to notice this issue and it's quite a bummer because we need letterboxes often and we don't want to resort to using polygon strips hooked to the camera, very dangerous in production.

Versions used:
C4D R23 + Octane 2021.1.1-(R2)
C4D R26 + Octane 2021.1.5-(R4)

Image

Any ideas for a workaround? Thanks in advance!

Re: Foreground object alpha broken in R26

Posted: Fri Sep 23, 2022 8:01 am
by aoktar
I found that latest stability revisions of back/foreground object is missing on alpha processing. I'm adding it.

Re: Foreground object alpha broken in R26

Posted: Wed Jan 18, 2023 3:56 pm
by neue
Was this never fixed? Still broken in 2022.1-[R5] (12.01.2023)

Re: Foreground object alpha broken in R26

Posted: Mon Apr 17, 2023 10:54 am
by iRota
Hi, I am having he same problem since I updated to S26.
PR14 S26 Monterrey 12.6.3

Re: Foreground object alpha broken in R26

Posted: Thu May 25, 2023 3:03 pm
by iRota
Hi.
No news on this topic?

Re: Foreground object alpha broken in R26

Posted: Thu May 25, 2023 3:26 pm
by elsksa
Hurricane046 wrote:Hello!

We've been used to framing full-frame shots by using letterbox.png hooked via native C4D material in the Foreground Object.
Out of curiosity, why this method instead of calculating and setting the aspect ratio & according resolution directly?
FYI, "letterbox" should never be rendered out, from the renderer or a motion-picture editing export (aside from some specific edge cases). That said, it coincidentally led to the discovery of that issue.