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Help key framing a filter so its effect reduces [ANSWER]

Posted: Tue, 1st Aug 2006, 9:09pm

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petet2

Force: 2899 | Joined: 27th Dec 2005 | Posts: 1043

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I am using Oeyvind's Old Computer Game preset for Comp Lab and what I want to achieve is a piece of video which looks like an old computer game for a while but which then gradually turns back to normal video.

How do I do this? Am just having a blank here (a senior moment for sure).

I've used the mosaic filter in Premiere Elements to achieve a similar effect but Comp Lab's looks better (no surpirse there). Key framing is easy in Prem Elements - set the look of the filter at the start (image messed up) and the end of the clip (image normal) and the program tweens the intervening frames.

I know Comp Lab can do this but I could do with some clues as to how to set the preset so as to give a normal image. Which settings do I need to change? I have slid sliders and altered values but not really got anywhere. Oeyvind are you out there please?
Posted: Tue, 1st Aug 2006, 9:44pm

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Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

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SuperUser

Rating: +1

Apply the preset to a Grade Object. Keyframe the transparency on the grade object.

Otherwise, keyframe the Mosaic from its original position of 9 down to 0, and Posterize should end at 20 to look normal. The contrast and saturation settings can vary depending how you want the 'normal' footage to look, but if you just want to keyframe them off, Saturation goes to 1.0, and the White Point of the contrast pro filter should go all the way up to 255.
Posted: Tue, 1st Aug 2006, 10:39pm

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petet2

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Excellent - thank you. I'll try those settings tomorrow and let you know how I get on.
Posted: Thu, 3rd Aug 2006, 12:06am

Post 4 of 8

petet2

Force: 2899 | Joined: 27th Dec 2005 | Posts: 1043

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Ok...Method Two - changing the settings with key frames worked well for all but the mosaic setting which jumped a little so I will have to play a little longer with those settings to make that smooth. Otherwise looks great.

Method One - when you say apply the settings to a grade object...what exactly do you mean? I tried having two copies of the footage (one with the preset applied, the other as original) and then applied a square garbage matte to the upper layer and keyframed the transparency of the matte. That gave me a slow dissolve effect from the preset applied footage to the original footage.

Is that what you meant?

(By the way I think a combination of the two methods will give me what I want - key frame the effects to remove the colour distortion but leave the mosaic effect then dissolve to the original footage).
Posted: Thu, 3rd Aug 2006, 12:30am

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Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

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SuperUser

Do you have the latest version of Clab? If so, you can apply a grade object from the Effects Tab.

Basically this behave as an empty layer, to which you can apply grading filters, which will affect all the layers underneath. So apply the grading preset to the grade object, then create a mask for the object which covers the entire screen, and keyframe the mask from complete opacity to complete transparency.
Posted: Thu, 3rd Aug 2006, 7:16pm

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petet2

Force: 2899 | Joined: 27th Dec 2005 | Posts: 1043

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Yes I do have the latest version (1.001.001?) but haven't had a chance to look at the new features in the manual yet. I'll check that out - thanks for explaining.
Posted: Fri, 4th Aug 2006, 10:50am

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Jazzmanian

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I had a bit of trouble finding/using that in CLab Pro my first time until the mods/devs explained it for me. In case this makes it easier, you just go to the "Effects" tab in the tool box. There you will see the grading object which you can left click and drag onto your timeline. You can either set the duration of the object to match your film length in the toolbox before you add it or, in case you forget, you can right click on the object name once it's in the timeline and change the duration from there. Remember that the grade object will affect *all* layers below it, but not the layers above it.

Cheers.
Posted: Fri, 4th Aug 2006, 5:34pm

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petet2

Force: 2899 | Joined: 27th Dec 2005 | Posts: 1043

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Thanks - it's good to have a second explanantion.

There are just too many good features in the FX Home programs!

[not that I am complaining smile ]