I'd appreciate if anyone can help me with the process to apply an
Alpha to a
movie. I need to use a gradient as the mask onto a moving video.
I just got this working with the following steps.
1. Create an "Image With Movie" patch.
2. Create a "Billboard" patch.
3. Attach the movie's image up to the billboard.
4. Set the blending mode of the billboard to "Over".
5. Create an "RGB Color" patch.
6. Specify an alpha value for the color patch.
7. Attach the color to the billboard.