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Rendering artifacts with ‘mask shape’ filter – need advice
Hi-
I’ve created a 6 minute DV 4:3 sequence with multiple fades in & out to black. I then nested the video sequence. As I have included many stabilized shots, AND as the piece is to be shown via projector ( read: no action safe, it projects the entire frame), I wish to mask both left and right as well as top and bottom to hide the crazy frame jitter. Originally the piece was to be show on a tv monitor and then I simply applied the Widescreen letterbox matte masking top and bottom. This worked perfectly. But when applying the additional mask ( via mask shape in FCP filters) to also mask off the left & right which the projector will also show, every time I render it out I get some wavy-type of artifacts where the mask shape coincides with fade ups and down to black in the sequence. After repeated attempts, I cannot get rid of the above described errors. What am I doing wrong?
FCP 5.0.4, NTSC DV easy set up.
Clues are most welcome…
Thanks,
Peter Tooke