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Old 08-02-2018, 06:29 AM   #1
Jim N
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Default Smooth keyframed level chages?

Using Edius 8.53, I have a clip taken outside where the sun is darting behind clouds. The camera was on manual and I want to use the YUV curve to adjust levels during various sections of the clip gradually.

I cant get the key frames to "ramp up or down" but just jump at keyframe level changes. When I right click on markers they show "hold" and bezier and linear are greyed out, while the key frame markers dissapear in chart view altogether.

I suspect Im doing something simple wrong but cant seem to find out what?

Any suggestions, or is this the right filter to be trying this?

Last edited by Jim N; 08-02-2018 at 12:34 PM.
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Old 08-02-2018, 07:14 AM   #2
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Ended up using blend filter with YUV as 2nd filter. Id still like to get the YUV keyframes working for ramping!
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Old 08-02-2018, 09:33 AM   #3
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I get to deal wit this a lot on my unmanned cameras when shooting ceremonies outdoors in a partially cloudy day, a easy and very fast way for me to gradually smooth out these exposure changes caused by a appearing and disappearing sun is to use a simple dissolve.

I always expose when the sun is out, when the sun goes into hiding my image underexposes, in post I make a cut halfway the clip between the brightest part and the darkest part, I then place a PCC on the darkest part of the clip and adjust exposure to the right levels and then I place a dissolve on the cut and drag the dissolve as long as it took for the sun to go behind the clouds. That gives me a perfectly smooth transition in exposure between the 2 clips. What was a correctly exposed shot that turned into a underexposed shot has become a shot that stays correctly exposed.
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Old 08-02-2018, 10:36 AM   #4
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Another method is to duplicate the clip and add on track above, then grade one clip for bright conditions and other for cloudy. Then use the transparency rubber band to fade from one clip to the other at relevant points. Peter
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Old 08-02-2018, 12:33 PM   #5
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Cool, thanks guys. Handy workarounds but wanted to keep the timeline simple. Still wondering about better functionality from YUV keyframes!
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Old 08-02-2018, 03:15 PM   #6
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Cool, thanks guys. Handy workarounds but wanted to keep the timeline simple. Still wondering about better functionality from YUV keyframes!
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Old 08-02-2018, 10:33 PM   #7
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Quote:
Originally Posted by Jim N View Post
Cool, thanks guys. Handy workarounds but wanted to keep the timeline simple. Still wondering about better functionality from YUV keyframes!
Short answer is you won't get better functionality. Ramping between YUV filter key-frames is not possible in this filter. It has always been this way. The work-around options posted are all you have at this point until the filter is upgraded.
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Old 08-03-2018, 03:02 AM   #8
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Thanks guys,

That does answer my question although I think the blend filter will give me the fuctionality I need in one track.
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Old 08-03-2018, 11:26 AM   #9
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We were just trying to offer methods to assist with your problem. If you are not happy with the solutions offered best to contact GV direct and see if they can help or make changes to the Edius program for you.
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Old 08-04-2018, 09:31 AM   #10
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would you not be able to use color balance and apply Bezier to the keyframes - works in 7.5.... ( lasso keyframes, right click, apply bezier )

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