Vray 5 Frambuffer doesnt save background as png

[Witt3D]

When you try to add a background image on pst on the VFB and check on "Save in image", when you save on PNG format it doesnt write the background. It works with other formats like TGA, but not PNG.

[hermit.crab]

Refer to this thread for an answer.

[Witt3D]

Absolutely doesn't make sense what i read on this answer.

As francomanco point out on this thread, there is no internal discussion needed for this issue.
Chaos is trying to add post funtionality with the new VFB to users. No sence to keep the alpha on a PNG format when "Save in image" is checked on. This option is exactly this reason for.

To save as JPG with a loosy compresion format is not the goal, or the solution. If you put a background image on post, and checked "Save in image" there is no longer any alpha on this image, that simple.
Other workaround is just a misunderstand for users, that expect to get an image without compression and with his background added on post, as they already cheched on "Save in image" and then see that his background is not there on PNG.

So easy, I honestly don't understand where the problem is.

Thank you.

[hermit.crab]

So easy, I honestly don't understand where the problem is.

You cannot disable the .png's alpha being saved in the image in Maya.