[Bf-cycles] cycles sky texture

[franco cortesi]

seems that mitsuba is using same sky model in lux render also:

Skylight emitter: The old version of this plugin used to implement the Preetham model, which suffered from a range of numerical and accuracy-related problems. The new version is based on the recent TOG paper An Analytic Model for Full Spectral Sky-Dome Radiance by Lukáš Hošek and Alexander Wilkie. 

and i'm sorry, many thanks for the responses :)
From: cortesi_8 at hotmail.com
To: bf-cycles at blender.org
Date: Mon, 4 Mar 2013 13:08:09 -0300
Subject: Re: [Bf-cycles] cycles sky texture





Those renders are just showing the color difference in the sky. i haven't done any real comparison of the lighting it was just an impression after doing various renders without tone mapping and similar lighting conditions. but materials can be different etc. Just asking, it was less important. my point was on sky colors but i understand if improving this (if is true it could be improved) isn't important.

> From: brechtvanlommel at pandora.be
> Date: Mon, 4 Mar 2013 13:50:12 +0100
> To: bf-cycles at blender.org
> Subject: Re: [Bf-cycles] cycles sky texture
> 
> There's various reason these images could be different, using
> different sky models, using different tone mapping settings, and
> various other settings. The mitsuba render for example seems to have
> practically no indirect light in it, just one directional sun lamp?
> There might be an issue in Cycles but it's impossible to tell from
> renders which are not configured comparably.
> 
> Brecht.
> 
> On Mon, Mar 4, 2013 at 2:43 AM, franco cortesi <cortesi_8 at hotmail.com> wrote:
> > Is being held until the list moderator can review it for approval.
> >
> > The reason it is being held:
> >
> > Message body is too big: 1772147 bytes with a limit of 400 KB
> >
> >
> > cycles: http://www.pasteall.org/pic/46449
> >
> > lux: http://www.pasteall.org/pic/46451
> >
> > mitsuba: http://www.pasteall.org/pic/46450
> >
> >
> >
> > ________________________________
> > Date: Sun, 3 Mar 2013 17:34:08 -0800
> > From: dfelinto at gmail.com
> > To: bf-cycles at blender.org
> > Subject: Re: [Bf-cycles] cycles sky texture
> >
> >
> > You forgot to attach the images or attachments are not supported. Either way
> > you are better of hosting them on a site like pasteall.org
> >
> > -- cheers
> >
> > On Mar 3, 2013 5:24 PM, "franco cortesi" <cortesi_8 at hotmail.com> wrote:
> >
> > I was playing with blender lux and mitsuba using film curves for a vintage
> > style just on clay renders and i found very tricky to get same results with
> > cycles renders principally because of the sky. Using curves like
> > ektchachrome or kodachrome wich gives drastic color changes, cycles rendered
> > skys turns orange/red very easy while lux/mitsuba remains "photograpic".
> >
> >
> > so rendering the same scene in cycles/lux/mitsuba gives these attached
> > images. Also i found every cycles render brighter than mitsuba/lux but as
> > they are all unbiased or accurate, should look the same i guess..? probably
> > the answer is in the brighter sky?
> >
> >
> > some googling:
> >
> > http://libregraphicsworld.org/blog/entry/luxrender-makes-use-of-new-realistic-sky-dome-model
> >
> >
> >
> > _______________________________________________
> > Bf-cycles mailing list
> > Bf-cycles at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-cycles
> >
> >
> > _______________________________________________ Bf-cycles mailing list
> > Bf-cycles at blender.org http://lists.blender.org/mailman/listinfo/bf-cycles
> >
> > _______________________________________________
> > Bf-cycles mailing list
> > Bf-cycles at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-cycles
> >
> _______________________________________________
> Bf-cycles mailing list
> Bf-cycles at blender.org
> http://lists.blender.org/mailman/listinfo/bf-cycles
 		 	   		  

_______________________________________________
Bf-cycles mailing list
Bf-cycles at blender.org
http://lists.blender.org/mailman/listinfo/bf-cycles 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.blender.org/pipermail/bf-cycles/attachments/20130304/771d8ae7/attachment.htm