Hi all:

   I didn't really mean to enter the challenge, but after looking at the ugly
export they offer, I had to demonstrate that better options can be offered
to POV-Ray artists if they really want some povers to enter the challenge.

   So, I used Poseray to convert the OBJ format offered into POV SDL. The
scene is really nice, and very detailed, but unfortunately the author was a
bit lazy with the object naming. The solution, to avoid excesive trial &
error, was to use Wings3D just to identify the object names (I didn't touch
anything within Wings3D).

   Because the main challenge is the lighting, I didn't even bother to uvmap
the objects that don't have uvmaps, and most materials are not final
still... I wanted to focus on the lighting, which I think I finally solved
with a variation the classic arealight-on-the-window trick. I'm not
satisfied with the overexposing of the windows and blinds, but in general
the trick seems to work well with just 1 rad bounce.

   As a bonus, I added postprocessed media. Using a third pass with black
objects and without area lights, I got a "media mask" wich I applied as an
overlapping layer on The Gimp.

   Known problems not work commenting:

   + Black artifacts on some meshes: should be corrected with a re-export
from Poseray with better smoothing (I hope!).

   + Chromed metals look waaaay too fake (although it will be realistic for
those fake-chrome plastics on toys).

   + The bed sheet needs some subdivision, but this was on the original scene.

   Suggestions and criticism welcome, as usual...


P.S.: Combined render time was about 16 hours with MegaPOV.


-- 
Jaime Vives Piqueres

http://www.ignorancia.org

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Attachments:
Download 'bedroom-13-ppmedia.jpg' (342 KB)

Preview of image 'bedroom-13-ppmedia.jpg'

Jaime Vives Piqueres <jai### [at] ignoranciaorg> wrote:

>    So, I used Poseray to convert the OBJ format offered into POV SDL. The
> scene is really nice, and very detailed, but unfortunately the author was a
> bit lazy with the object naming. The solution, to avoid excesive trial &
> error, was to use Wings3D just to identify the object names (I didn't touch
> anything within Wings3D).

Fantastic job on the conversion - is there any chance of making your version of
the scene available?

>    Because the main challenge is the lighting, I didn't even bother to uvmap
> the objects that don't have uvmaps, and most materials are not final
> still... I wanted to focus on the lighting, which I think I finally solved
> with a variation the classic arealight-on-the-window trick. I'm not
> satisfied with the overexposing of the windows and blinds, but in general
> the trick seems to work well with just 1 rad bounce.
>
>    As a bonus, I added postprocessed media. Using a third pass with black
> objects and without area lights, I got a "media mask" wich I applied as an
> overlapping layer on The Gimp.

Wow - it looks really good. The lighting seems extremely natural, and nicely
evocative of the morning light streaming through the window.

>    Known problems not work commenting:
>
>    + Chromed metals look waaaay too fake (although it will be realistic for
> those fake-chrome plastics on toys).

Yeah - are you using focal blur instead of AA?

>    Suggestions and criticism welcome, as usual...

Only that the scene could have more contrast - it seems almost too flat given it
is lit by the morning sun. The area light/sky sphere seems to be much brighter
than I would expect (if I'm reading your lighting rig right).

Cheers,
Edouard.

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> Fantastic job on the conversion - is there any chance of making your
> version of the scene available?

     Yes, I will do, but right now it is a mess... or were you asking just
for the _geom.inc files exported with Poseray?

> Wow - it looks really good. The lighting seems extremely natural, and
> nicely evocative of the morning light streaming through the window.

     Thanks!

> Only that the scene could have more contrast - it seems almost too flat
> given it is lit by the morning sun. The area light/sky sphere seems to be
> much brighter than I would expect (if I'm reading your lighting rig
> right).

     Yes, I think I overdone the sky light... but the lack of contrast is
also due to the addition of the media mask, I think (see the "dry" render
attached).


-- 
Jaime Vives Piqueres

http://www.ignorancia.org

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Attachments:
Download 'bedroom-13-dry.jpg' (350 KB)

Preview of image 'bedroom-13-dry.jpg'

Jaime Vives Piqueres wrote:
> Hi all:
> 
>   I didn't really mean to enter the challenge, but after looking at the 
> ugly
> export they offer, I had to demonstrate that better options can be offered
> to POV-Ray artists if they really want some povers to enter the challenge.
> 
>   So, I used Poseray to convert the OBJ format offered into POV SDL. The
> scene is really nice, and very detailed, but unfortunately the author was a
> bit lazy with the object naming. The solution, to avoid excesive trial &
> error, was to use Wings3D just to identify the object names (I didn't touch
> anything within Wings3D).
> 
>   Because the main challenge is the lighting, I didn't even bother to uvmap
> the objects that don't have uvmaps, and most materials are not final
> still... I wanted to focus on the lighting, which I think I finally solved
> with a variation the classic arealight-on-the-window trick. I'm not
> satisfied with the overexposing of the windows and blinds, but in general
> the trick seems to work well with just 1 rad bounce.
> 
>   As a bonus, I added postprocessed media. Using a third pass with black
> objects and without area lights, I got a "media mask" wich I applied as an
> overlapping layer on The Gimp.
> 
>   Known problems not work commenting:
> 
>   + Black artifacts on some meshes: should be corrected with a re-export
> from Poseray with better smoothing (I hope!).
> 
>   + Chromed metals look waaaay too fake (although it will be realistic for
> those fake-chrome plastics on toys).
> 
>   + The bed sheet needs some subdivision, but this was on the original 
> scene.
> 
>   Suggestions and criticism welcome, as usual...
> 
> 
> P.S.: Combined render time was about 16 hours with MegaPOV.
> 
> 
> 
> ------------------------------------------------------------------------
> 
Heh heh, our resident lighting guru steps up.  Good job Jaime.

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Jim Charter <jrc### [at] msncom> wrote:
> Heh heh, our resident lighting guru steps up.  Good job Jaime.

was a sure bet. :)

I also liked the dirty paint job on the walls.  Too many people just assign a
pigment and a rough material and are done with it.

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> I also liked the dirty paint job on the walls.  Too many people just assign a
> pigment and a rough material and are done with it.

   That's a proceduralized image_map, of course... ;)

   material{
     texture{
       uv_mapping
       pigment{
         image_map{
           jpeg "mayang-concrete_rectangular_slabs_seamless.jpg"
           interpolate 2
         }
         rotate 90*z
         scale .25
         warp{
           displace{cells scale .1 turbulence .3}   // <--- the trick
         }
       }
     }
   }


-- 
Jaime Vives Piqueres

http://www.ignorancia.org

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Jaime Vives Piqueres wrote:

>> I also liked the dirty paint job on the walls.  Too many people just 
>> assign a
>> pigment and a rough material and are done with it.
> 
>   That's a proceduralized image_map, of course... ;)
> 

Oh! Thanks for that :)

I look forward to the final version.


-- 

Best Regards,
	Stephen

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Here is the final pic that I posted at the challenge forum. It could have
used still more work, but I was distracted with the camera effects
experiments... will see if I can do better on the next challenge. ;)

-- 
Jaime Vives Piqueres

http://www.ignorancia.org

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Attachments:
Download 'bedroom-15-mediapp.jpg' (315 KB)

Preview of image 'bedroom-15-mediapp.jpg'

Jaime Vives Piqueres wrote:
> Here is the final pic that I posted at the challenge forum. It could have
> used still more work, but I was distracted with the camera effects
> experiments... will see if I can do better on the next challenge. ;)

*cough* *cough*

Why is your room so dusty?

*wheeze*

I mean, sure, it shows off those nice light rays, but IRL those only 
look that prominent if there's smoke or lots and lots of dust in the air.

--
Tim Cook
http://empyrean.freesitespace.net

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I realize that it's part of the original model, but I would not want to walk around on
that floor barefoot; I could no 
longer count to 20.

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