Camera Imageplane Alpha and SkyDome issue

[Witt3D]

Just that simple. I´m trying to make it work but for sure im doing somthing worng cause is really simple.

Physical Camera, with imageplane applied, with alpga channel, I just want the skyline of my mountain but the sky of my VrayLight Skydome.

Impossible, just render white.

[hermit.crab]

There doesn't seem to be an issue from what I tested. Are you certain your dome light settings are unchanged? If the issue persists, do send the scene via the contact form here so we can take a look. Mention this thread in the message.

[Witt3D]

Ok, was PSD format and not PNG. Just work now.