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Dynamic Magnifying glass
Hello Everyone,
I’ve been enjoying your tutorials and great tips for a while but I can’t seem to find an answer to my latest problem.
Let me apologize for my bad english in advance, hopefully I will manage to make this as clear as possible.
I’m trying to create a Dynamic magnifying glass.
I have a big composition (w=5000px lh=1440px) that I will use both as the magnified part (masked of course) and as the part to be magnified.
I’ve created an object that will be my “lens”, made of two circles, one that would be the highlighting part, and one that will contain the magnified version.
I’ve linked everything to a null object, and by doing this I managed to move the mask around the big composition according to the movement of the little highlighting circle, but what I basically need to do is to dynamically move the composition too so that the highlighted part and the magnifyed part match.
I cannot use the Magnyfing glass effect that is in the tutorial section as it’s important that the magnifyed part doesn’t loose quality and that the image is as clear as possible.
And I need to separate have the highlighted part and the magnifyed part both visible.I think I should link the center of my highlighting circle to the position of the big composition somehow, but the position value have to go opposite of the movement I make with the highlighting circle (that is, if I move to the left, the composition need to move to the right, sort of like how the camera works when you move it around and you have 2 layers very distant one from the other)
Help!
How can I do this? Is this possible at all?Thanks
V. -
4 Replies
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Hello,
Just do the standard magnafying glass animation, as in the tutorial you mentioned, but set the composition to 5000 px by 1440 px. When the animation is to your liking, precomp the entire composition and import it into a normal sized composition (720 x 486 ???). Because you did the animation at such a high resolution, it will look real good scaled down to standard video resolution. This also allows for any modifications you need to do to the magnifyer animation. Just go back to that composition to make changes.Best regards,
Steve Davidson
http://www.3danimationmagic.com -
Thanks for the advice Steve, I guess I’ll end up doing that, but what I hope to do is to avoid moving the composition manually as I’ll have lots of movement and the magnifying lens will move in and out a lot.
BTW my final comp will be 720×576 as I’m in the Pal area of the world! 😀
Thanks again
V. -
I just had a thought….you could use an expression that controlled the motion of the “magnified area” based on the movement of the magnifying glass. I’m not a big expression guy, but I see that CS3 version of After Effects makes expressions easier, and there is a seperate expressions disscusion group here at the cow.
Best Regards,
Stephen P. Davidson
http://www.3danimationmagic.com -
I’ll try and bring “the issue” to the expressions discussion group then, hopefully this could come in handy for other people too!
Thanks again for your answers and patience! 🙂
V.
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