POV-Ray : Newsgroups : povray.binaries.images : UberPOV : Re: UberPOV Server Time
29 Jul 2024 20:27:43 EDT (-0400)
  Re: UberPOV  
From: Ive
Date: 21 Nov 2013 02:53:47
Message: <528dbc0b@news.povray.org>
Something else: "Wheels At The Waterfront" - the 72' Challenger R/T 
tires and rims, modeled over a year ago.

This brand new image shows them exactly as wanted them (based on some 
reference images) but back then I did simply give up because both 
methods for blurred reflections (large scaled and micro-normals) did 
literally last *forever* to render (I know, this is not true, but this 
is how I call it when I look at the rendered pixel count and do so again 
12 hours later and the number still reads exactly the same).
This was obviously caused by multiple internal reflections inside the 
rims and the bad scaling of the blurred reflection methods available for 
POV-Ray.
BTW lowering max trace level was/is not an option as the Challenger with 
all its fancy chrome, varnish and glass shows otherwise black parts.
I did use, for this image, quite insane and unnecessary high quality 
settings for radiosity and area lights just to check the boundaries and 
to get a feeling for the quality/time trade-off. Ah, yes, render time 
was 3h and 39 minutes.
And yes, I know, the pneus do not look very convincing but I remember 
that, a year ago, I did struggle for 2 days with Blender to get them 
this far and at the moment I'm not in the mood for that fight again.

So both, blurred reflections and AM3 are IMO a really huge and important 
step forward and the adaptive multi-level supersampling does look really 
promising given that I actually did fear much longer render times.
And sorry Christoph, no testing from my side on the glare desaturation 
as I always render to OpenEXR and prefer my own tool-set for tonemapping 
to LDR.

-Ive


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