I wonder if anyone can help me understand what I'm doing wrong:
In Sony Vegas, I have several tracks layered so as to create a desired background colour for a foreground image that I created on a higher track. (I lowered that higher track's opacity to allow the lower tracks' background colour through.)
I've used BCC Colorize Glow on one of these lower tracks. However, when I create a mask in this track, BCC Colorize Glow seems to create an unwanted red border around that mask.
I don't really know how BCC Colorize Glow works -- I'm a newbie at this! -- but I've experimented with every one of its settings, and can't get that red border to disappear.
Any idea what might be creating that red border?
Many thanks, in advance, for any tips you'd care to share!