No more textures in viewport

[Turck]

Hi. Just updated to Octane Studio (2026.3) + Plugin (1.93) and Cinema 4D (2026.3) to their latest versions.
And what I have found is that the Cinema 4D viewport seems now to be unable to show any image textures on an Octane Material.

It´s just grey. No matter what. Material Preview in viewport is enabled.

Anyone´s got the same problem?

[bepeg4d]

Hi,

Nope, everything seems ok here:

Please go to "Plugin Settings>Other" panel and share a screenshot, thanks.

ciao,
Beppe

[Turck]

Here you are.
You are using Cinema 2026.2! I have 2026.3.

[bepeg4d]

Ok, now I'm in C4D 2026.3.
Try to disable the "Use Octane for OpenGL preview" option and restart C4D:

ciao,
Beppe

[Turck]

No, did not help. I´ll try the Studio Driver. Although before the Cinema and Octane updates, everything has worked with the Game Drivers.

[Turck]

Changing to the Studio Driver did not help either. However I have deleted the oct.dat and THAT fixed the problem with no textures showing up in the viewport. Any idea why?

[bepeg4d]

Ok, it was my second option.
Plugin has changed a lot, especially in preferences, so it makes sense to rest them by deleting the oct.dat.

ciao,
Beppe

[Turck]

Thanks Bepe for your quick response. Appreciated. In gamba!