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Physically Based Lens Flare in AE

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Mark Doctor
Physically Based Lens Flare in AE
on Nov 30, 2018 at 8:18:25 pm

Hi,

Since AE allows for ray-tracing, physically based lens flares seems to be possible. But before I build something of my own, what's currently available and looks realistic?

Greets Mark


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Dave LaRonde
Re: Physically Based Lens Flare in AE
on Nov 30, 2018 at 9:57:09 pm

I hate to rain on your parade, but you're probably out of luck.

Adobe gave up ray tracing as a bad job.... oh, about six years ago. The ray tracing is still included, but they have done ZERO work on it for many years.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Mark Doctor
Re: Physically Based Lens Flare in AE
on Dec 1, 2018 at 2:09:27 am

Hi Dave,

Ah yes Adobe didn't use the options. But also no third party's or private developments? Because I found this article from 2011 that already referred to generating this type of flares.

http://resources.mpi-inf.mpg.de/lensflareRendering/


Greets Mark


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Dave LaRonde
Re: Physically Based Lens Flare in AE
on Dec 1, 2018 at 2:44:55 am
Last Edited By Dave LaRonde on Dec 1, 2018 at 2:48:42 am

It sounds a lot like wishful thinking to me. Consider that the topic of using ray tracing to make lens flares has never, EVER been broached in this forum. That should tell you something.

Mind you, I don't know that it can't be done. I just know no one has ever written about it. Which tells me a lot.

Who knows? If you perservere, you may be the first.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Mark Doctor
Re: Physically Based Lens Flare in AE
on Dec 1, 2018 at 3:23:31 am

Hi,

Its the *.pdf added to that article

http://resources.mpi-inf.mpg.de/lensflareRendering/pdf/flare.pdf

"At the other end of the scale, sophisticated techniques have been
demonstrated that involve ray or path tracing through a virtual lens
with all of its optical elements. The results are near-accurate but
very costly to compute, with typical rendering times in the order of
several hours per frame on a current desktop computer."


I already tried just building one lens in AE, which seems to work. But I gues I aint the first one?


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Tero Ahlfors
Re: Physically Based Lens Flare in AE
on Dec 1, 2018 at 12:58:20 pm

I'd guess everyone is using Optical Flares already.


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Dave LaRonde
Re: Physically Based Lens Flare in AE
on Dec 2, 2018 at 2:29:54 am

...and those who abhor lens flares as a result of flawed photography could care less about the final result of a fake lens flare.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Mark Doctor
Re: Physically Based Lens Flare in AE
on Dec 3, 2018 at 1:38:15 am
Last Edited By Mark Doctor on Dec 3, 2018 at 1:40:33 am

A general reason to add lens flares, is to add imperfection to virtual footage. However if the flare looks fake, you can't sell the footage as being real. Many flares look to synthetic.

So building flares from scratch, by simulating physics might do the job. But reinventing the wheel wasn't my target. But it seems to be a bit harder than i thought.

Thanks for the input guys


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