Rotating images/video produces a bounding box on render

[Dobesov]

Hello, I am using an updated copy of VSx7 64bit and am trying to perform a very simple task with devastating results.
To display the problem is very simple. Make a black image and place it in the project using a black background. Using advanced motion controls, rotate it. This will not show any problems in the preview pane. The video will be black. However when you go to share and render it. Try mpeg2 for speed (though it happens with every format), and there will be a gray outline to that black image. This is giving me quite a headache since I am trying to move and rotate objects around the screen, without gray boxes around them.

Basically it looks like it is trying to anti-alias the border, but is not calculating it against the background or image color underneath.

The project is set to a black background and i have tried with a solid black image as the main video track as well.

Is this simply a limitation of the software? Improper transparency edge handling?

Image attached:

-D

[Dobesov]

Image

[lata]

Hi

Customise Motion aka Advanced Motion has a Border option
The default colour is whiteish, try changing that to Black.

[asik1]

Dobesov, you are correct it's a bug.
And it can easily seen by selecting black border and blurring it.
A gray border will show. why? because of this 1 white pixel.

[Dobesov]

Thanks for you replies. I found a way around it for my purposes, but if I had not had a specific use, this could have been a product killer. I managed to use the rotate filter while also sizing all of my images with enough empty space that the filter didn't clip them. Then I used advanced motion only changing scaling and x,y position.

-D