The Question to developer.

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pixie
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Re: The Question to developer.

Post by pixie » Tue Feb 12, 2013 8:44 am

Zom-B wrote:
galinette wrote:Why not using the double pass approach:
Why not no in one pass using LightLayers? :)
DOF?

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Zom-B
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Re: The Question to developer.

Post by Zom-B » Tue Feb 12, 2013 8:49 am

pixie wrote:DOF?
Since the flash is behind the camera the environment light is the one to stick to... or do I get something wrong here?

Could be Motion blur used to handle that stuff, since it should use animation information (like turning emitters on and off) to create a image out of X frames
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galinette
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Re: The Question to developer.

Post by galinette » Tue Feb 12, 2013 10:39 am

Zom-B wrote:
galinette wrote:Why not using the double pass approach:
Why not no in one pass using LightLayers? :)
Because you can't, as Ono said, define an emitter which is on for a very short period of time (the flash) in a render with a longer shutter (except using the occluder, which is very unefficient)

More typical example of this use would be the classical rear-curtain sync photography effect: http://planetanimals.com/logue/ambulance.jpg
http://forums.dpreview.com/files/w/TS56 ... /SUBf/KTc=
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CTZn
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Re: The Question to developer.

Post by CTZn » Tue Feb 12, 2013 10:54 am

It doesn't work Arthur because the moment you would set the flash layer on, it would still be lighting the whole trail and not a certain portion.

I'm hoping that all these digressions are ok to Yves and C4D users (:

Valid though limited techniques mentionned so far:

Merging IGI/images
  • two images
    a long sequence of images
Resuming IGI (superimpression)
flash concealing/scaling (subframe transforms)
... ?

On light graphs: I'm hardly believing the physical performances of the arabesque specially, but I'm loving the idea.
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Prof4D
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Re: The Question to developer.

Post by Prof4D » Tue Feb 12, 2013 11:30 am

This I have found on put can is of interest.
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Fast-Flash-Rendering.png

StompinTom
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Re: The Question to developer.

Post by StompinTom » Tue Feb 12, 2013 11:55 am

galinette wrote: By the way, who knows lightgrafs:
http://www.obturations.com/wp-content/u ... aff.11.jpg

Other here:
http://www.obturations.com/2010/08/itw- ... graff-org/

No editing in this art, all is made by moving light sources by hand in front of a very long shutter camera shot
Love that kind of stuff. Check out Barry Underwood: http://barryunderwood.com/

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Re: The Question to developer.

Post by CTZn » Tue Feb 12, 2013 12:11 pm

Prof4D wrote:This I have found on put can is of interest.
Not relevant Prof, this is for a real-time rendering pipeline.

Indigo cumulates samples, it does not check wether a pixel needs to be sampled.

edit: blue 2007, Headlands II.
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StompinTom
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Re: The Question to developer.

Post by StompinTom » Tue Feb 12, 2013 12:35 pm

CTZn wrote:blue 2007, Headlands II.
I was at the Headlands just a couple of months ago :) Beautiful place.

Sorry for off-topic.... :oops:

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Re: The Question to developer.

Post by CTZn » Tue Feb 12, 2013 1:32 pm

Tell you what, if there's something going wrong in this here forum I'm probably the cause :lol:

This thread had derailed several posts (scratch that: pages) ahead no worries ;)
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