POV-Ray : Newsgroups : povray.binaries.images : 3dRender.com Lighting Challenge : Re: 3dRender.com Lighting Challenge Server Time
4 Nov 2024 17:35:51 EST (-0500)
  Re: 3dRender.com Lighting Challenge  
From: Jim Charter
Date: 23 Dec 2009 18:29:53
Message: <4b32a7f1$1@news.povray.org>
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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