High!

Reactor schrieb:

> /*  old declaration
> #declare T_Concrete_Inner =
> texture
> {
>     pigment { P_Concrete }
>     finish { F_Standard_Outer }
> }
> */
> 
> // should be replaced with:
> #declare T_Concrete_Inner =
> texture
> {
>     pigment { P_Concrete }
>     finish { F_Standard_Inner }
> }

Oops... that's when your up to your neck in ten months' Afghanistan news 
  to analyze for the current project!

> 
> 
> I am still adjusting other settings, but the first change I made was above, with
> the inner and outer diffuse settings.  T_Concrete_Inner is using the finish
> F_Standard_Outer, and it should be using F_Standard_Inner.
> Next:
> 
> 
> #if (balanced=1)
>    #declare radbri=1.125; /* 1.125 or so for outdoors, raise to 2.0 for indoor
> views*/

For still images, this would be a sufficient solution (and at 2.0, the 
indoor brightness level is pleasantly realistic) - but what if I want 
render an animation and therefore change between indoor and outdoor 
"shooting"? I think an acceptable tradeoff would be 1.6 for both "modes"...

>    #declare outerDiff = 0.25;
>    #declare outerAmbi = 0.15;
>    #declare innerDiff = 1.00;
>    #declare innerAmbi = 0.00;

This, I can't duplicate... even at radbri=3, let alone 2 or 1.125, 
outside surfaces are much to dark for a bright sunny day (yes, I added 
the new variables to the finish statements)! Outdoor diffuse must be 
considerably higher, perhaps 0.75... (I go through your suggestions step 
by step, so I might find them explained by changes further below!)


>   I added additional variables for controlling the ambient settings
> individually.  I do not recommend the use of ambient light for the indoor
> portions, but it can be used to help alter the contrast of the outdoor shadows.
> I also dropped the radiosity brightness to the 1.0 to 1.25 range, observing good
> results around 1.125 for outside views.  This can be raised or lowered depending
> on how much you want the user to be able to see inside.
> 
> 
> After changing that, I raised the brightness of the light_source to match.
> Assuming a desired intensity of 1.0 * the color declared in the pigment
> statement, with a diffuse of 0.25, the light source brightness should be 4.0
> (since 4.0 * 0.25 = 1).

O.k., this is a different story then! But still, the outside surface of 
the western apartment block is way too dark when looked at it from 
inside my apartment (radbri = 2) - but the facade of the eastern block 
almost drowns in white when rendered in view #0!

See you in Khyberspace!

Yadgar

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=?ISO-8859-1?Q?J=F6rg_=27Yadgar=27_Bleimann?= <yaz### [at] gmxde> wrote:
> High!
..
..
..
> For still images, this would be a sufficient solution (and at 2.0, the
> indoor brightness level is pleasantly realistic) - but what if I want
> render an animation and therefore change between indoor and outdoor
> "shooting"? I think an acceptable tradeoff would be 1.6 for both "modes"...

Since you have the camera position changing during animations, why not change
the radiosity brightness and adjust the diffuse settings also?



> O.k., this is a different story then! But still, the outside surface of
> the western apartment block is way too dark when looked at it from
> inside my apartment (radbri = 2) - but the facade of the eastern block
> almost drowns in white when rendered in view #0!

This is the main reason why I used different values for the brightness and
diffuse for different angles.  The actual, real world range of light cannot be
model with  the official POVray's light model, but we can attempt to
approximate a visually correct version by adjusting the variables to different
values in different places.

Attached is the source of your scene with the modifications I've made to get
those images.  I agree that manually setting these variables is inconvenient,
but you can add another #switch statement that will select the correct values
for a camera view.


-Reactor

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Attachments:
Download 'povworld adjusted.zip' (5 KB)