Erratic bezier animation in a very wide sequence.

i have sequence extremely wide. 9720 pixels 1920 pixels high. high resolution panoramic image imported sequence. image larger sequence.

the idea animate image along bezier path , export 9 separate video files 1080 wide , 1920 high.

 

the sequence 30 seconds long , placed 3 animation nodes on position under motion @ beginning, middle , end of sequence. each node uses "linear" temporal interpolation , "continous bezier" spacial interpolation.

 

 

by adjusting bezier handles formed elliptical path starts , ends @ exact same point video can looped.

 

closeup of path below

so setup. problem. (the screenshots taken @ 15 seconds while on middle animation node)

 

when render project, render seperate video file using cropbox on source tab in "export settings" screen. this:

 

i rendered above video in h264 wmv , in both plays smooth animation expected. however, when after render export following:

 

the footage jittery , unusable. since both videos rendered same animated image, can not understand why results different. further cropbox moves right, more jittery footage becomes. visible in program monitor during playback. add confusion, if render entire sequence area normal 1920 x 1080 video, of footage stable expected.

 

i think doing wrong here what?

ok, know triggers problem , think bug. turns out, problem of erratic animation occurs when scale (without animation) source image. if leave @ 100% animation fine.

i tried set keyframe scale doesn't @ not when animate scale between 2 values. forced scale images in photoshop first.

 

strange such major feature not working right. suppose bug shows due unusually wide sequence window of 9720 pixels since error doesn't show when rendering far left of window (the first 1920 pixels pretty else works)

 

uhm... should't paid work?

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