FCP X - Pixels Missing on Some Transitions at DVinfo.net

David Parks · October 12th, 2011, 09:59 AM

The curious picture shrinking bug in FCPX

FYI...FCP X Bug reported by a few people. See Link

William Hohauser · October 12th, 2011, 03:51 PM

This may not be an FCPX bug but an error by the author of those transitions in Motion. The example given here is the Squares transition which I am not familiar with. It may be constructed by mathematical programming or be an image gradient wipe. If it is indeed a gradient wipe then it's possible that the base image the transition is using to achieve the effect is slightly wrong. If it is a mathematical formula then adjusting for pixel dimensions may not have been programmed in the effect.

David Parks · October 13th, 2011, 08:20 AM

William,

From I can tell it is a bug because the problem can be created with some built-in transitions inside FCP X.

From the article: "It is particularly noticeable as the outgoing video stays behind the incoming video until the end of the transition. That results in an edge and the incoming video popping back to its original size.

We thought it was an error in some of the coordinates and maths in the custom transition, not so as you can reproduce the problem with one of Apple's built in effects."

It is somewhat common to find these type of program bugs in NLE's from time to time. That is why it is important to report them to Apple so they can address them.

October 12th, 2011, 09:59 AM	#1
David Parks Major Player Join Date: Feb 2006 Location: Houston Posts: 789	FCP X - Pixels Missing on Some Transitions The curious picture shrinking bug in FCPX FYI...FCP X Bug reported by a few people. See Link __________________ David Parks: DP/Editor: Jacobs Aerospace at NASA Johnson Space Center https://www.youtube.com/user/JacobsESCG

October 12th, 2011, 03:51 PM	#2
William Hohauser Inner Circle Join Date: Dec 2005 Location: New York City Posts: 2,650	Re: FCP X - Pixels Missing on Some Transitions This may not be an FCPX bug but an error by the author of those transitions in Motion. The example given here is the Squares transition which I am not familiar with. It may be constructed by mathematical programming or be an image gradient wipe. If it is indeed a gradient wipe then it's possible that the base image the transition is using to achieve the effect is slightly wrong. If it is a mathematical formula then adjusting for pixel dimensions may not have been programmed in the effect. __________________ William Hohauser - New York City Producer/Edit/Camera/Animation

October 13th, 2011, 08:20 AM	#3
David Parks Major Player Join Date: Feb 2006 Location: Houston Posts: 789	Re: FCP X - Pixels Missing on Some Transitions William, From I can tell it is a bug because the problem can be created with some built-in transitions inside FCP X. From the article: "It is particularly noticeable as the outgoing video stays behind the incoming video until the end of the transition. That results in an edge and the incoming video popping back to its original size. We thought it was an error in some of the coordinates and maths in the custom transition, not so as you can reproduce the problem with one of Apple's built in effects." It is somewhat common to find these type of program bugs in NLE's from time to time. That is why it is important to report them to Apple so they can address them. __________________ David Parks: DP/Editor: Jacobs Aerospace at NASA Johnson Space Center https://www.youtube.com/user/JacobsESCG