[REQ] Longer Shutter Speeds

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Doug Armand
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[REQ] Longer Shutter Speeds

Post by Doug Armand » Thu Oct 15, 2009 5:42 pm

I am playing with using emitters to simulate car lights, as in streaks of light, but the 1 sec shutter speed isn't long enough to get the effect I'm after.
AutoLightStreaks.jpg
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if we could get the speeds extended to 30-60 secs that would be awesome and would fit in with the Indigo concept of being a 'truly' digital camera :D

Hmmm I think there might be a good advertising slogan buried in that last sentence for Glare :wink:
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psor
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Re: [REQ] Longer Shutter Speeds

Post by psor » Thu Oct 15, 2009 5:44 pm

+1
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Re: [REQ] Longer Shutter Speeds

Post by OnoSendai » Thu Oct 15, 2009 6:21 pm

There's no limit on shutter speed, or 'exposure duration' as it's called in Indigo. Maybe it's an exporter limitation? What exporter do you use?

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Re: [REQ] Longer Shutter Speeds

Post by Doug Armand » Thu Oct 15, 2009 7:03 pm

OnoSendai wrote:There's no limit on shutter speed, or 'exposure duration' as it's called in Indigo. Maybe it's an exporter limitation? What exporter do you use?
Blendigo.
Thats interesting - so I should be able to set the speed or duration in the .igs file? As a temporary measure I'll check that out.
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Re: [REQ] Longer Shutter Speeds

Post by suvakas » Thu Oct 15, 2009 7:43 pm

I tried it for fun. Works fine here.
Shutter Speed = 1/3.2
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Doug Armand
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Re: [REQ] Longer Shutter Speeds

Post by Doug Armand » Thu Oct 15, 2009 8:02 pm

suvakas wrote:I tried it for fun. Works fine here.
Shutter Speed = 1/3.2
Wow cool demo Suvakas. Thats exactly what I'm aiming for.
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Re: [REQ] Longer Shutter Speeds

Post by zeitmeister » Thu Oct 15, 2009 8:18 pm

Cool!

Why are these streaks so egdy? Is it because the motions path is edgy, too?
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Re: [REQ] Longer Shutter Speeds

Post by suvakas » Thu Oct 15, 2009 8:31 pm

zeitmeister wrote:Cool!

Why are these streaks so egdy? Is it because the motions path is edgy, too?
This is something I need to improve in Maxigo. Currently only 10 keyframes are taken account when exporting motion blur. (total animation time is divided by 10). That's why smooth motions appear to be edgy. Can't show a perfect arc with 10 frames. I need to change this to be dynamic. Nah.. long story. :)

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Re: [REQ] Longer Shutter Speeds

Post by Doug Armand » Thu Oct 15, 2009 8:37 pm

Using a path Suvakas?. I can't seem to use a path in Blendigo as the object tracking the path, ie the headlights, then seems to have no keyframes of its own and Indigo/Blendigo just shows it as a static object.

Of course it's probably more to do with my noobness of Blender and animation :|
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Re: [REQ] Longer Shutter Speeds

Post by Doug Armand » Thu Oct 15, 2009 8:39 pm

You know I've been thinking about this.

Why don;t I just fake it in Indigo. Just use a curve/mesh shaped like the light streaks and place an emitter material to it. No need to anmimate for a still image? Might give that a try as well...

so much to do so little time.... :D
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Re: [REQ] Longer Shutter Speeds

Post by pixie » Thu Oct 15, 2009 8:53 pm

@Fused:

How can we accomplish this effect in Cindigo?

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Re: [REQ] Longer Shutter Speeds

Post by suvakas » Thu Oct 15, 2009 9:57 pm

Doug Armand wrote:Using a path Suvakas?.
Nope. Handmade animation with 3 bezier keyframes.
Doug Armand wrote:Just use a curve/mesh shaped like the light streaks and place an emitter material to it.
Yep, this could also work. You may not get such blurred edges though.

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Re: [REQ] Longer Shutter Speeds

Post by Doug Armand » Fri Oct 16, 2009 12:02 am

Quick test using curves in Blender. Think it could work with some tweaking
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Re: [REQ] Longer Shutter Speeds

Post by fused » Fri Oct 16, 2009 12:53 am

pixie wrote:@Fused:

How can we accomplish this effect in Cindigo?
uhm, use motion blur with high exposure? maybe?
:D :lol:

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Re: [REQ] Longer Shutter Speeds

Post by pixie » Fri Oct 16, 2009 1:03 am

fused wrote:
pixie wrote:@Fused:

How can we accomplish this effect in Cindigo?
uhm, use motion blur with high exposure? maybe?
:D :lol:
Been there done that :P, what about an example scene? :P

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