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After Rendering Horizontal thin green bars apear on clips
I have DSLR footage converted to ProRes422 in a sequence that matches the settings in FCP7. I use Colorista to color grade the clips. This has happened a couple of times after I have completely rendered the time line. On a couple of clips that have the filter rendered, there will be a thin horizontal green bar. Sometimes the bar is see-through. Other times it is a section of the actual clip. I have found a work around were I disable the filter, re-enable and re-render, and the glitch is gone. I’ve used this workflow many times without this kind of corrupt render error. Footage is stored on external drive via FW800. Is this a filter problem, FCP7, computer, hard drive?
Cody Walters
JW Studio LLC
Houston Video Production
Houston Wedding VideographerFinal Cut Studio 3
Adobe CS5 Master Suite
Panasonic HVX-200
Canon 7D -
7 Replies
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i had this problem yesterday where i had a clip keyed over a bgd. the clip had filters applied to it. when rendered there were thin vertical lines only on the keyed clip. i went to sequence settings and changed Video Processing to Always Render in RGB and the problem went away. i quess it was the filters i had applied to the clip that was causing the problem.
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Jerry, that makes since. Just took a look at the Video Processing settings. I have Render 10-bit material in high-precision YUV. So I am wondering in my case, editing 8-bit footage from a DSLR, if I should select Always Render in RGB to avoid this problem?
Cody Walters
JW Studio LLC
Houston Video Production
Houston Wedding VideographerFinal Cut Studio 3
Adobe CS5 Master Suite
Panasonic HVX-200
Canon 7D -
i’m not sure.
but i just now re-rednered my clip and removed one of the filters and the culprit was nattress big box of tricks g earthquaker.
so i guess some filters will cause issues. -
I don’t have a solution, but I get weird green bars like you’re describing and they turn out to be nothing, just FCP having a hard time with playback.
I get them when lowering the opacity of a clip made in motion when it is ‘fading’ to another clip. I know I’ve seen them in other instances, but this one is the most common. Once I export/compress the clip, the green bars aren’t there and it looks as it should.
If there is a setting to get rid of them, I haven’t found it. -
Some plugins require sufficient GPU power so it might be your graphics card is struggling to help with the render.
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I’m running FCP 7 with a ATI Radeon HD 5870 1024 MB on a MacPro. Shouldn’t that handle pretty much all graphics intensive situations still?
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Yes Steven that certainly should be enough graphics grunt.
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