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I chose recursion limit 10 because less seemed to not cover the corners (for
instance under the soffit). Part of the problem I suppose is that I chose to
only have reflected light in the radiosity pass. Perhaps lower the recursion
limit and add some direct lighting in the radiosity calculation?
Brightness of 2 came out of rendering a dark scene and needing it to be
lighter. Is the "limit" 1, (is 2 super-bright like rgb 2,2,2?).
"Christoph Hormann" <chr### [at] gmx de> wrote in message
news:3BEE4563.2C80E3ED@gmx.de...
>
>
> Jack wrote:
> >
> > pretrace_start 0.08
> > pretrace_end 0.005
> > count 100
> > nearest_count 10
> > error_bound 0.1
> > recursion_limit 10
> > low_error_factor .01
> > gray_threshold 0
> > minimum_reuse 0.001
> > brightness 2
> > adc_bailout 0.01/2
> > max_sample 1.5
> >
>
> I wonder how you choose that values, starting with settings from
> rad_def.inc (in Povray 3.5) should usually lead to agreeable results, both
> in quality and speed.
>
> In detail:
>
> - recursion_limit 10 must be incredibly slow.
> - brightness 2 is exaggerated although it might serve some artistic
> purpose.
>
> Christoph
>
> --
> Christoph Hormann <chr### [at] gmxde>
> IsoWood include, radiosity tutorial, TransSkin and other
> things on: http://www.schunter.etc.tu-bs.de/~chris/
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Jack wrote:
>
> It is a kitchen to be built, but like I said the rendering is a WIP. There
> should be a window in the obvious empty space on the wall--nothing I can do
> about placing cabinets over that. With that in mind, what do you suggest?
Do a wider-angle rendering of it (simple raytracing), so I can see
everything, and state me clearly the function of each device.
Fabien.
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John David Haiducek wrote:
>
> I had thought that Photoshop's "Lighten" mode did addition. Am I wrong
> about that?
Try 50% gray bg layer + 50% gray lighten layer. It's not white.
I just tried all the modes in 5.5 and none of them was additive.
The only way to add images is via Image/Calculations but it's
not good for interactive editing.
_____________
Kari Kivisalo
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Fabien Mosen wrote:
>
> > Default radiosity brightness is the correct one so no need to
> > touch that.
>
> Some "exposure" filtering would be good, in the future, though.
When a new MegaPOV version does gamma correction after
post_process and input to curves is not limited exposure
can be done with post_process.
_____________
Kari Kivisalo
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You're seeing all that I have done.
"Fabien Mosen" <fab### [at] skynetbe> wrote in message
news:3BEEC1DB.16B232F0@skynet.be...
> Jack wrote:
> >
> > It is a kitchen to be built, but like I said the rendering is a WIP.
There
> > should be a window in the obvious empty space on the wall--nothing I can
do
> > about placing cabinets over that. With that in mind, what do you
suggest?
>
> Do a wider-angle rendering of it (simple raytracing), so I can see
> everything, and state me clearly the function of each device.
>
> Fabien.
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Jack wrote:
>
> You're seeing all that I have done.
Of course not !
There is missing space to the right, especially.
Fabien.
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On Sun, 11 Nov 2001 08:02:17 -0500, John David Haiducek
<jha### [at] enginumichedu> wrote:
>I had thought that Photoshop's "Lighten" mode did addition. Am I wrong
>about that?
If layer A is above layer B, then for a pixel [x,y]:
f_lighten(A,B,[x,y]) = (lum(A,[x,y])>lum(B,[x,y]))?A[x,y]:B[x,y]
If you want to do addition, try screen mode or image/channel
composition.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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Peter Popov wrote:
>
> If you want to do addition, try screen mode or image/channel
> composition.
screen mode: A + B - A*B
_____________
Kari Kivisalo
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On Sat, 13 Oct 2001 07:30:27 +0300, Kari Kivisalo
<ray### [at] engineercom> wrote:
>screen mode: A + B - A*B
I didn't know that. Do you have the mathematical description of the
other non-trivial ones such as Overlay or Soft/Hard Light? I don't see
them in the manual.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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Peter Popov wrote:
>
> >screen mode: A + B - A*B
>
> Do you have the mathematical description of the
> other non-trivial ones such as Overlay or Soft/Hard Light?
Quick web search didn't turn up any equations for these
so I tried a few combinations to find out what screen mode
does.
_____________
Kari Kivisalo
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