Why does Final Cut Pro X produce green screen when rendering hi-res images..?

Question

Why does Final Cut Pro X produce green screen when rendering hi-res images..?

As per heading - when zooming and moving across hi-res images using Ken Burns effect and cross-dissolves, I keep getting green screen static / garbage when saving the Master File 😟 It sometimes happens during previewing, but certainly not as bad as the exported video.

No overlays, just one track of images placed one after the other on the timeline. No video being used either.

I've tried closing FCPX, trashing all previous Render Files, reopening FCPX, allowing new Render Files to be created from scratch and that makes no difference. Any idea what's causing this..?

Here's what happens: https://youtu.be/gDJ_PElxrkQ

MacBook Pro, OS X El Capitan (10.11.6)

Posted on Sep 28, 2016 2:20 PM

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Answer 1

Tom Wolsky

Level 10

152,815 points

Sep 28, 2016 2:31 PM in response to UnsungHeroGuitars

What are your system specs including graphics? What are the project properties? What is the frame resolution of the images? How many images in the project? Hi res stills a lot of processing power especially VRAM to hold them and create the effects.

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Answer 2

Sep 28, 2016 2:41 PM in response to Tom Wolsky

Hi Tom

It's a late 2011 13" MBP - 2.4GHz i5 - 16GB Memory - Intel HD 3000 512MB - 1TB Hybrid Drive

Exporting to 1920 x 1080 @ 25fps (oddly enough, exporting direct to YouTube produced different and less frequent green screens - the example video has been subsequently uploaded from Master File).

JPG image sizes are 5184 x 3456 (wanted to keep the resolution as high as possible for zooms and pans) - 44 images at around 4MB per image.

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Answer 3

Tom Wolsky

Level 10

152,815 points

Sep 29, 2016 9:46 AM in response to UnsungHeroGuitars

There isn't enough VRAM to support many images of that size. Try halving the frame resolution.

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Answer 4

Sep 28, 2016 3:02 PM in response to Tom Wolsky

Ok, thanks Tom, I'll give that a shot ✅

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Answer 5

Sep 29, 2016 9:45 AM in response to UnsungHeroGuitars

Tom - thank you once again 🙂

I reduced the photos to 50% of their original size
Saved all the zooms and movements as Effects Presets from the original edit sequence
Imported the reduced photos into a new project
Reapplied all the Presets
Exported the Master File

All good! Not a single glitch in sight ✅

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