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From: stbenge
Subject: Luminous Bloom 7
Date: 8 Jun 2010 18:27:04
Message: <4c0ec3b8@news.povray.org>
Hello,

I've released a new version of Luminous Bloom today, a utility for 
casting glare from the bright regions in your images. You get get it here:
http://news.povray.org/povray.binaries.scene-files/thread/%3C4c0ebe6b%40news.povray.org%3E/

New in this version:

  * completely rewritten core routines
  * different effects via point sets
  * can handle up to 65536 points
  * a file for writing your own custom point sets is included
  * a scene for viewing different point sets is also included
  * it's roughly 50% faster

I changed the whole thing to work based on the principle presented by 
Tek in his thread "Lens flare in scene."* It was optimized by using a 
suggestion made by Alain in the same thread.

The attached image shows the star burst effect in action. The seven 
effects included in the zip file are shown at the bottom. The banding in 
violet sky is a jpeg artifact, it wasn't my fault ;)

Happy ray tracing!

Sam

*http://news.povray.org/povray.binaries.images/thread/%3C4b938dfd%40news.povray.org%3E/?ttop=345214&toff=50


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Attachments:
Download 'lb7.jpg' (113 KB)

Preview of image 'lb7.jpg'
lb7.jpg


 

From: Dave Blandston
Subject: Re: Luminous Bloom 7
Date: 8 Jun 2010 21:30:01
Message: <web.4c0eed8c9fe2f72ccba3fb0f0@news.povray.org>
Oh my, that's amazing! And what a beautiful demo scene for a bonus... Thank you
for sharing your hard work and wonderful accomplishment!

Regards,
Dave Blandston


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From: Thomas de Groot
Subject: Re: Luminous Bloom 7
Date: 9 Jun 2010 03:18:48
Message: <4c0f4058@news.povray.org>
Thank you VERY much, Sam! I am going to use this right away.

Thomas


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From: stbenge
Subject: Re: Luminous Bloom 7
Date: 9 Jun 2010 13:44:18
Message: <4c0fd2f2@news.povray.org>
Dave Blandston wrote:
> Oh my, that's amazing! And what a beautiful demo scene for a bonus... Thank you
> for sharing your hard work and wonderful accomplishment!

Thanks! I almost didn't include support for higher-count point sets, but 
in the end it was my math and not a bug with POV-Ray that was the problem :/


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From: stbenge
Subject: Re: Luminous Bloom 7
Date: 9 Jun 2010 13:50:07
Message: <4c0fd44f$1@news.povray.org>
Thomas de Groot wrote:
> Thank you VERY much, Sam! I am going to use this right away.

No problem Thomas! It was a fun project and I feel much better about 
this version.

Hey, have you run into any problems with it? Dave Blandston was getting 
an "invalid or corrupted" error for some reason. It sounded like a zip 
archive thing, but I can't be sure.


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From: Alain
Subject: Re: Luminous Bloom 7
Date: 9 Jun 2010 14:50:41
Message: <4c0fe281@news.povray.org>

> Thomas de Groot wrote:
>> Thank you VERY much, Sam! I am going to use this right away.
>
> No problem Thomas! It was a fun project and I feel much better about
> this version.
>
> Hey, have you run into any problems with it? Dave Blandston was getting
> an "invalid or corrupted" error for some reason. It sounded like a zip
> archive thing, but I can't be sure.

No such problem on my side.
Probably a bad download. Clear your cache and try again, or use some 
other browser.


Alain


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From: Thomas de Groot
Subject: Re: Luminous Bloom 7
Date: 10 Jun 2010 03:18:37
Message: <4c1091cd$1@news.povray.org>
"stbenge" <UN### [at] hotmailcom> schreef in bericht 
news:4c0fd44f$1@news.povray.org...
> No problem Thomas! It was a fun project and I feel much better about this 
> version.
>
> Hey, have you run into any problems with it? Dave Blandston was getting an 
> "invalid or corrupted" error for some reason. It sounded like a zip 
> archive thing, but I can't be sure.

No, it works just fine. One thing I have to mention though, is that when 
using POV 3.7, the assumed_gamma should be commented out of the 
global_settings{}. Not only does it give a parse error, it also results in a 
*wrong* rendered image as gamma correction is then assumed to be off.

Thomas


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From: gregjohn
Subject: Re: Luminous Bloom 7
Date: 10 Jun 2010 11:45:00
Message: <web.4c1107e09fe2f72ca00085090@news.povray.org>
awsome


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From: stbenge
Subject: Re: Luminous Bloom 7
Date: 10 Jun 2010 13:14:54
Message: <4c111d8e@news.povray.org>
Thomas de Groot wrote:
> "stbenge" <UN### [at] hotmailcom> schreef in bericht 
> No, it works just fine. One thing I have to mention though, is that when 
> using POV 3.7, the assumed_gamma should be commented out of the 
> global_settings{}. Not only does it give a parse error, it also results in a 
> *wrong* rendered image as gamma correction is then assumed to be off.

Yeah, I was using it to give my scenes deeper colors, but it seems the 
final output is given an assumed_gamma of 1.0 anyway. I'll just try to 
use filters around the camera in future scenes instead.


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From: Carlo C 
Subject: Re: Luminous Bloom 7
Date: 25 Sep 2010 15:00:00
Message: <web.4c9e46889fe2f72c4b72cc9c0@news.povray.org>
stbenge <UN### [at] hotmailcom> wrote:
> Hello,
>
> I've released a new version of Luminous Bloom today, a utility for
> casting glare from the bright regions in your images. You get get it here:
>
http://news.povray.org/povray.binaries.scene-files/thread/%3C4c0ebe6b%40news.povray.org%3E/
>
> New in this version:
>
>   * completely rewritten core routines
>   * different effects via point sets
>   * can handle up to 65536 points
>   * a file for writing your own custom point sets is included
>   * a scene for viewing different point sets is also included
>   * it's roughly 50% faster
>
> I changed the whole thing to work based on the principle presented by
> Tek in his thread "Lens flare in scene."* It was optimized by using a
> suggestion made by Alain in the same thread.
>
> The attached image shows the star burst effect in action. The seven
> effects included in the zip file are shown at the bottom. The banding in
> violet sky is a jpeg artifact, it wasn't my fault ;)
>
> Happy ray tracing!
>
> Sam
>
>
*http://news.povray.org/povray.binaries.images/thread/%3C4b938dfd%40news.povray.org%3E/?ttop=345214&toff=50

A bit late, but...

Could you send us the source of the wonderful image you have posted... ?
if, of course, is done in pov. ;-)


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