Hi,

Finally decided to take the plunge and have a play with photons in POV-Ray.
The image is very simple - 7 spheres in a circle - hence the title!!!
Radiosity and Area Lights used for the soft shadows.  DoF added afterwards
in photoshop using a vertical gradient.

Comments most welcome - apart from bad ones... ;-)

Thanks,

Adrian

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"the_ajj" <adr### [at] tiscalicouk> schreef in bericht
news:web.44301ccaa096647d38f00cc80@news.povray.org...
> Hi,
>
> Finally decided to take the plunge and have a play with photons in
POV-Ray.
> The image is very simple - 7 spheres in a circle - hence the title!!!
> Radiosity and Area Lights used for the soft shadows.  DoF added afterwards
> in photoshop using a vertical gradient.
>
> Comments most welcome - apart from bad ones... ;-)
>

Nice. Just out of curiosity: why not DoF in POV-Ray?

Thomas

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"Thomas de Groot" <t.d### [at] internlnet> wrote:
>
> Nice. Just out of curiosity: why not DoF in POV-Ray?
>
> Thomas

Hi,

Thanks for the comment.

I find that DoF PRO (www.richardrosenman.com/software)in Photoshop gives
more realistic results than POV-Ray.  In addition it has extras such as
Bokeh effects and other enhancements that are not supported in POV-Ray.  It
also means that you can severly reduce render times.  Using Blur massively
increases the render time when you have a high number of samples.  This
image took <5 mins to render and about 10secs to add the DoF - would have
taken much longer just in POV.

Regards,

Adrian

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> I find that DoF PRO (www.richardrosenman.com/software)in Photoshop gives
> more realistic results than POV-Ray.  In addition it has extras such as
> Bokeh effects and other enhancements that are not supported in POV-Ray.  It
> also means that you can severly reduce render times.

I often use PhotoShop/PSP and a lot of other post-render processing on work
intended for commercial or personal use, for the excellent reasons you
cite.  However, for anything I post here I seldom do more than a HSV
adjustment, if that.

Lonnie

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the_ajj nous apporta ses lumieres en ce 04/04/2006 09:13:
> "Thomas de Groot" <t.d### [at] internlnet> wrote:
> 
>>Nice. Just out of curiosity: why not DoF in POV-Ray?
>>
>>Thomas
> 
> 
> Hi,
> 
> Thanks for the comment.
> 
> I find that DoF PRO (www.richardrosenman.com/software)in Photoshop gives
> more realistic results than POV-Ray.  In addition it has extras such as
> Bokeh effects and other enhancements that are not supported in POV-Ray.  It
> also means that you can severly reduce render times.  Using Blur massively
> increases the render time when you have a high number of samples.  This
> image took <5 mins to render and about 10secs to add the DoF - would have
> taken much longer just in POV.
> 
> Regards,
> 
> Adrian
> 
If you have reflections or refraction, POV-Ray will render correctly. Post processing
just can't 
take those cases into acount. What apears in the reflection will be blured acording to
the position 
of the reflective surface, NOT the full path as it must be. If you have a lense like
object, post 
processing will again give you the wrong result.
DoF in POV-Ray is acurate, and real acuracy takes more time.
DoF by post processing is only faked: fast, cheap and unacurate.

-- 
Alain
-------------------------------------------------
But I thought YOU did the backups...

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"Alain" <ele### [at] netscapenet> schreef in bericht
news:4432ef01$1@news.povray.org...
> DoF in POV-Ray is acurate, and real acuracy takes more time.
> DoF by post processing is only faked: fast, cheap and unacurate.
>

<grin>
That's what I thought! :-)


Thomas

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Hi,

Fair enough comments - can't argue - technically you are correct! However,
in my opinion I still don't think the POV blurring is the best and it
doesn't support some of the real lense effects such as Bokeh - I'm not sure
if POV would ever support this though???  In the end it's personal
preference and how your eyes see it!!!

Adrian

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