How to disable vignette effect for cameras?

[sparkstj]

I'm rendering some 360 panorama images with unrealzoo and my renderings look weird from vignette effects (Fig.1). How to disable it?
I know that setting the sg.PostProcessQuality=0 in GameUsersSettings.ini disables this effect but it also lowers other postprocess quality. My rendering still looks sightly off (Fig.2: the view in the middle right has a different tone/exposure from other views). Does anyone know how to fix this?

[zfw1226]

You can turn off the vignette Using Console Command.

1. Press ~ to open the console.
2. Type showflag.vignette 0 and press Enter.

If you want to make this process in Python you can send the command, e.g., unrealcv.client.request('showflag.vignette 0').

[sparkstj]

Thank you for your response!

I tried unrealcv.client.request('showflag.vignette 0'), but encountered the following error: error Can not find a handler for URI 'showflag.vignette 0', and the RGB renderings still had dark corners.

It seems that this command is not implemented in UnrealCV :(