POV-Ray : Newsgroups : povray.binaries.images : 3dRender.com Lighting Challenge : 3dRender.com Lighting Challenge Server Time
4 Nov 2024 17:32:22 EST (-0500)
  3dRender.com Lighting Challenge  
From: Jaime Vives Piqueres
Date: 23 Dec 2009 09:43:22
Message: <4b322c8a@news.povray.org>
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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