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Author Topic: FOV Zoom  (Read 3403 times)

Francesco

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FOV Zoom
« on: October 25, 2008, 05:46:14 pm »

Hi all, here is a small attempt at doing a FOV zoom effect with Anim8or.

The effect is done by changing the distance and the FOV of the camera at the same time, the problem is that while the camera movement can be linear, the FOV change should be non-linear (logarithmic or geometric or whatever, I don't know).

The project and a small video are attached, just to get a quick idea if you don't have Anim8or under hands.

I guess that the FOV change should be made with a controller, but I'm already choking on ASL in object mode (see my post in the ASL section for that attempt). By now I tried to key it manually.

The aim is to change the perspective of the whole scene while keeping the size of the subject more or less constant (in this case the subject is the dodecahedron).

Take a look if you like.
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falloffalot

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Re: FOV Zoom
« Reply #1 on: October 25, 2008, 06:27:48 pm »

Cool   :o makes your eyes go wierd after a while.
Think you've cracked the desired effect well done.
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Francesco

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Re: FOV Zoom
« Reply #2 on: October 25, 2008, 06:41:33 pm »

Thank you falloffalot, making it with the controller will be even better, maybe someone with a deeper script knowledge can give a shot and improve it.
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hihosilver

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Re: FOV Zoom
« Reply #3 on: October 26, 2008, 09:02:48 am »

Awesome!  Just worked on that in my media arts class.  Using the video camera to walk away and zoom in at the same time.  Makes a crazy effect.  Nicely done there!
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headwax

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Re: FOV Zoom
« Reply #4 on: October 26, 2008, 10:21:28 am »

cool that spin me out man ;)
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Francesco

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Re: FOV Zoom
« Reply #5 on: October 26, 2008, 11:04:14 am »

Thank you all for your comments, I'm working on the controller to make it easier to do and also smoother as effect, as soon as I get the proper math I'll post the script here.

Happy Anim8ing meanwhile! (all my spare time is currently dedicated to that ;) )
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falloffalot

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Re: FOV Zoom
« Reply #6 on: October 26, 2008, 06:25:29 pm »

Awesome!  Just worked on that in my media arts class.  Using the video camera to walk away and zoom in at the same time.  Makes a crazy effect.  Nicely done there!
Is that how it's done in the real world then?
Have always wondered how that was done....sweet
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thecolclough

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Re: FOV Zoom
« Reply #7 on: November 18, 2008, 07:38:39 pm »

i've kept meaning to try doing this in anim8or - looks like you beat me to it ;D
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Francesco

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Re: FOV Zoom
« Reply #8 on: November 18, 2008, 08:02:38 pm »

Well why don't you post your work anyway thecolclough?
It would be nice if you succeed in doing this effect with a controller, once you have worked out the math other users can take advantage of it - me, for example :P, keying it manually is not handy, and the result isn't good enough.
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thecolclough

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Re: FOV Zoom
« Reply #9 on: November 18, 2008, 11:21:49 pm »

Well why don't you post your work anyway thecolclough?
i never got round to actually trying it, it was just an idea on my to-do list.  but you never know, i might still give it a spin sometime :)

and if i do, i'll hopefully put it up here for you all to see.

- c
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