POV-Ray : Newsgroups : povray.binaries.images : PoVEarth, day #6.5 - problem with fading fill light : Re: PoVEarth, day #6.5 - problem with fading fill light Server Time
1 Aug 2024 18:27:49 EDT (-0400)
  Re: PoVEarth, day #6.5 - problem with fading fill light  
From: Jörg 'Yadgar' Bleimann
Date: 5 Aug 2008 15:47:53
Message: <4898ae69@news.povray.org>
High!

Reactor schrieb:

> Three different things come to mind:  The first is a composite of 2 or more
> renders with different light settings,

Too cumbersome, as I plan, in the long run, to render animations of "My
Place in the World"...

> the second is using HDRI in MegaPov, 

I'm an orthodox PoV-Ray fundamentalist... (as you can tell from my beard!)
THOU SHALT NOT USE ANY OTHER RAYTRACER!!!

> and
> the last is something that occurred to me when you mentioned the rooms are
> differenced out of a larger object.  Why not use the same pigment for indoor
> and outdoor objects, but a different diffuse value?

I've tried that, but then the rooms in the building vis-a-vis drowned in
white...

Here is the closest I got towards what I aim for:

object
          {
            light_group
            {
              light_source
              {
                <0.37, GWG_FrKarl_Block238to252_Floor_yOffset + a *
GWG_FrKarl_Block238to252_Floor_Height + 1.27, 2.43>/f
                color rgb 0.25
                spotlight
                point_at <11.08,  GWG_FrKarl_Block238to252_Floor_yOffset
+ a * GWG_FrKarl_Block238to252_Floor_Height + 1.27, 2.43>/f
                radius 89.9999
                falloff 89.9999
                shadowless
              }
              object
              {
                GWG_FrKarl_Block238to252_Floor_Cutout
                scale 1/f
                translate <0.37, GWG_FrKarl_Block238to252_Floor_yOffset +
a * GWG_FrKarl_Block238to252_Floor_Height, 0.37>/f
              }
              global_lights on
            }

...still the distribution of brightness on the inside wall is very
uniform, such as the room was in fact lit by artificial light
overshining the indirect illumination, although I used global_lights
on... perhaps I should try a smaller radius for the spotlight? Or
introducing some fade_distance/fade_power?

See you in Khyberspace!

Yadgar


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Attachments:
Download '2008-08-05 my place on earth (altena version) wip, take 27 - inside my apartment,looking out, using light_groups with sp' (14 KB)

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2008-08-05 my place on earth (altena version) wip, take 27 - inside my apartment,looking out, using light_groups with sp


 

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