Straight Alpha Render Bug
Posted: Fri Nov 28, 2025 2:28 pm
Hello,
I noticed that in the latest 2025 and also the new 2026.1 octane plugin version there is a bug when rendering with/without straight alpha. The colors are shifted heavily.
Also, when I load up my file, start the picture viewer, it all looks as desired(lighter version). When I then render via shift+R, it renders the darker version. After rendering, when I switch to the live viewer again, the live viewer now shows the darker version. What is happening here?
Windows 11
RTX4080 Super 16 gig
581.57 nvidia Driver
2026.1 c4d
C4D 2025.3.3
I noticed that in the latest 2025 and also the new 2026.1 octane plugin version there is a bug when rendering with/without straight alpha. The colors are shifted heavily.
Also, when I load up my file, start the picture viewer, it all looks as desired(lighter version). When I then render via shift+R, it renders the darker version. After rendering, when I switch to the live viewer again, the live viewer now shows the darker version. What is happening here?
Windows 11
RTX4080 Super 16 gig
581.57 nvidia Driver
2026.1 c4d
C4D 2025.3.3