ADOBE AFTER EFFECTS: Forum Expressions Tutorials Creative Cloud

Making footage distort in a fan effect

COW Forums : Adobe After Effects

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
Shaun Harrison
Making footage distort in a fan effect
on Aug 7, 2014 at 3:13:25 pm

This seems like a pretty straightforward effect to achieve, but my brain can't work it out!

I'm looking to create a transition where a piece of footage splits and distorts around the centre of the screen.

The movement required is the same at a radial wipe, but the footage needs to distort with the movement. For example - from the centre of the footage to the bottom of footage splits open and each side rotates and distorts round to the top in a radial fashion.

Hopefully that's enough to describe what I'm after, happy to go into my detail if required.

Any help gratefully received!

Many thanks
Shaun Harrison
http://www.pictopictures.com
http://vimeo.com/user1362174/videos
Editing/VFX/Animation/Motion Graphics/Colour Correction


Return to posts index

Michael Szalapski
Re: Making footage distort in a fan effect
on Aug 7, 2014 at 3:29:53 pm

I don't really understand what you mean by "distort", but it sounds like you could split your footage into multiple layers masked off, apply Mesh Warp or Bezier Warp or whatever to each one as desired.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


Return to posts index

Shaun Harrison
Re: Making footage distort in a fan effect
on Aug 7, 2014 at 3:34:31 pm

Hi Michael,

Thanks for your quick response.

Sounds like you're getting the idea, and I have tried those, along with the Reshape tool etc. It's not giving me the smooth effect I need. It may be a case of just spending more time on it and tweaking.

Many thanks
Shaun Harrison
http://www.pictopictures.com
http://vimeo.com/user1362174/videos
Editing/VFX/Animation/Motion Graphics/Colour Correction


Return to posts index


Michael Szalapski
Re: Making footage distort in a fan effect
on Aug 7, 2014 at 3:38:33 pm

You might also try Liquify.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


Return to posts index

Matthew Woods
Re: Making footage distort in a fan effect
on Aug 8, 2014 at 2:25:18 pm

It might not be quite the look that you are going for, but have you tried the "polar coordinates" effect? Animate the interpolation of Rect to Polar.

-Matt

Need a quick break from motion graphics?
Try my game Constellation at:
http://www.paperdragongames.com


Return to posts index

Shaun Harrison
Re: Making footage distort in a fan effect
on Aug 8, 2014 at 2:51:21 pm

Hi Matt,

Thanks for your response.

Yes, I did look at that, it's almost the reverse of what I want, which is annoying. And swapping it to Polar to Rect doesn't rectify that.

Seems that it'll just need some fudging.

Many thanks
Shaun Harrison
http://www.pictopictures.com
http://vimeo.com/user1362174/videos
Editing/VFX/Animation/Motion Graphics/Colour Correction


Return to posts index


Matthew Woods
Re: Making footage distort in a fan effect
on Aug 8, 2014 at 4:24:09 pm

If by "reverse of what I want" you mean that you want the seam on the bottom, apply the transform effect to flip the image vertically before you apply polar coordinates. Then flip the entire clip by scaling y by -%100.

Also, since the Rect to Polar bends from the middle, you could try precomping the clip that you want to distort, make it double the height, and place the clip in the half that bends (without the seam)

Need a quick break from motion graphics?
Try my game Constellation at:
http://www.paperdragongames.com


Return to posts index

Shaun Harrison
Re: Making footage distort in a fan effect
on Aug 8, 2014 at 5:06:49 pm

Hey Matt,

Thanks for that, thought you may have cracked it for me then... though maybe you can still get it to work.

I need the seam at the bottom, but I need the seam to open up from the bottom and bend round to the top (from 180 degrees to 0 degrees), and therefore the footage disappears. It becomes a transition.

Hope that makes sense and thanks again!

Many thanks
Shaun Harrison
http://www.pictopictures.com
http://vimeo.com/user1362174/videos
Editing/VFX/Animation/Motion Graphics/Colour Correction


Return to posts index

Matthew Woods
Re: Making footage distort in a fan effect
on Aug 8, 2014 at 5:53:43 pm

Hi Shaun,

I can't quite picture exactly what you have in mind, but if what I've suggested is close, I bet you can make it work.

I would suggest precomping your footage and applying the polar coordinates to the pre comp. Then experiment with animating the position of the footage within the pre comp. As you move the footage position horizontally within the pre comp, you will see that it moves/wipes radially in the polar coordinates. If you move it vertically, you will see it moves/wipes in an iris fashion.

I think by tinkering with some combination of animating the position and scale of your footage within the pre-comp, and animating the interpolation value of the polar coordinates, you may be able to to achieve what you want.

One other note, changing from rectangular to polar shrinks your footage (you end up with a circle with a diameter that is the height of the layer that it is applied to) so you might want to make your pre-comp larger than your main comp so that you don't have to scale up and lose quality.

Good luck,

-Matt

Need a quick break from motion graphics?
Try my game Constellation at:
http://www.paperdragongames.com


Return to posts index


Shaun Harrison
Re: Making footage distort in a fan effect
on Aug 8, 2014 at 8:53:38 pm

Thanks for all the tips Matt, I will have a play with them.

Many thanks
Shaun Harrison
http://www.pictopictures.com
http://vimeo.com/user1362174/videos
Editing/VFX/Animation/Motion Graphics/Colour Correction


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]