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Halo - Light Leak Effect in Spirit 2K?


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#1 Luke Luoh

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Posted 07 February 2007 - 03:58 AM

This is a frame grab of our cinematographer's other film.

Posted Image

We just shot a commercial where the director wants this effect for some of the hightlights (I am the 1st A.D.)

The DOP insist that the light leak/halo/vertical line effect was achieved in telecine and not in compositing.

But our TC artist in Taiwan don't know how to do it.


ANYONE PLEASE HELP??!?
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#2 Luke Luoh

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Posted 07 February 2007 - 04:11 AM

Posted Image


EDIT: BTW We are on a Spirit 2K system. We have 2 more days before final TC, I was hoping that we can resolve this before that :P

Edited by Luke Luoh, 07 February 2007 - 04:13 AM.

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#3 Phil Rhodes

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Posted 07 February 2007 - 07:29 AM

Hi,

Well, I guess you could theoretically do something that with power windows (or equivalent) in grading, but it'd be pretty time-consuming. I'd expect that to be either an in-camera desynchronised shutter effect, which is what it looks like, or a post effect in Flame or similar.

Phil
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#4 Luke Luoh

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Posted 07 February 2007 - 10:48 AM

Hi,

Well, I guess you could theoretically do something that with power windows (or equivalent) in grading, but it'd be pretty time-consuming. I'd expect that to be either an in-camera desynchronised shutter effect, which is what it looks like, or a post effect in Flame or similar.

Phil


Well, guy said it was pretty fast when he did it in HK. It was apparently a different usage of a filter... making it glitch...

Anyone knows how to do it optically in Spirit 2K? It seemed to have been used a lot in Music Videos.
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#5 Phil Rhodes

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Posted 07 February 2007 - 01:35 PM

Hi,

Do you know what kind of filter?

You could put a two-point star filter, or a streak filter, in any telecine that'll take one - but I don't think that would get you some of those wider lines. You could try it. It doesn't look like that, to be honest, as some of the streaks are finer than the highlights that appear to be motivating them, and while it's possible that the grade is obliterating highlight detail that might excite a filter, it's not quite how I'd expect it to look. Could be wrong.

Otherwise, don't know.

Phil
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#6 Luke Luoh

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Posted 08 February 2007 - 02:28 AM

Spirit has a streak filter? Anyone know where in the menu it might be in? We need to convey to the TC artist...

Is that filter built-in to Spirit 2k or plugged in? What's the actual name?
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#7 Phil Rhodes

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Posted 08 February 2007 - 07:30 AM

Hi,

You misunderstand me. Some telecines have apparatus to support conventional optical camera filters. This might be an example of that. But I don't think that it is.

Phil
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#8 A. Whitehouse

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Posted 08 February 2007 - 08:49 AM

This is a frame grab of our cinematographer's other film.

Posted Image

We just shot a commercial where the director wants this effect for some of the hightlights (I am the 1st A.D.)

The DOP insist that the light leak/halo/vertical line effect was achieved in telecine and not in compositing.

But our TC artist in Taiwan don't know how to do it.
ANYONE PLEASE HELP??!?


I have seen similar effects from working on a vialta where scrubbing through the footage creates very similar effects but not as controlled. I thought that type of thing was done in flame though someone recently posted a Claudio Miranda shot ad which had similar horizontal streaking. That was camera filtration.

Sasha
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#9 Luke Luoh

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Posted 08 February 2007 - 03:25 PM

I have seen similar effects from working on a vialta where scrubbing through the footage creates very similar effects but not as controlled. I thought that type of thing was done in flame though someone recently posted a Claudio Miranda shot ad which had similar horizontal streaking. That was camera filtration.

Sasha


I've found out that it was a usage of the "motion blur" function in Toolbox 2 in the Da Vinci 2K Plus.

Instead of horizontal blurs you can use it vertically within the power windows and have it process blown highlights at extremes in the settings.

You then use a square window to limit the influences outside of the desired areas.

Hopefully this will help other filmmakers looking to get this effect without going into the high-rendering times and setup times of the flame/inferno.

Also, we've heard that this effect will look better done in Da Vinci as it would be using optical information instead of the layer info from a (damaged, as the Digital Beta is no where near film in color scopes, even in a 4K system... as Digital Beta can't hold that much info no matter what you do...) copy in compositing. I look forward to see if we can save some 2D times by doing this.

We are going into final TC tonight (it's 4:30am here ATM, been cutting all day :ph34r: ) and will be playing around with this.

Will tell you guys how it went...

Cheers...


(Edit: Spelling and specific info)

Edited by Luke Luoh, 08 February 2007 - 03:29 PM.

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#10 Michael Nash

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Posted 08 February 2007 - 10:07 PM

I thought that type of thing was done in flame though someone recently posted a Claudio Miranda shot ad which had similar horizontal streaking. That was camera filtration.


No, that was anamorphic lens flare. In camera yes; flitration no.
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