William Tracy <wtr### [at] calpolyedu> wrote:
> You know, I think the only reason I mentioned the sand is that the
> texture on the blocks is so nice. :-) It makes the sand stand out as
> bland. :-P
The blocks have only basic grey single-colour pigments. The texture comes
from their physical shape :P . In the close-up version (rendering as I
type) I've given the sand some turbulence so it looks grittier. It's much
better.

> BTW, it would be cool to see this image with radiosity. Bring it up the
> level of your 3D-rtc entry. ;-)
Errr, this image already relies heavily on radiosity... without radiosity
the shadowed areas are all black.

Bill

Post a reply to this message

"St." <dot### [at] dotcom> wrote:
>       If you pose her pushing that column (the column on the floor in front
> of her) into the sphere, then that would finish this image for me.

Slave-driver!

"They had whips, Rimmer. Massive, massive whips."

:-D

Post a reply to this message

Bill Pragnell wrote:
>> BTW, it would be cool to see this image with radiosity. Bring it up the
>> level of your 3D-rtc entry. ;-)
> Errr, this image already relies heavily on radiosity... without radiosity
> the shadowed areas are all black.

Wow, on the first take it sure looked like just ambient to me, but I'm 
starting to see the radiosity effects on the inside of the sphere.

Are you using any sort of sky sphere?

-- 
William Tracy
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|a|f|i|s|h|i|o|n|a|d|o|@|g|m|a|i|l|.|c|o|m|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|w|t|r|a|c|y|@|c|a|l|p|o|l|y|.|e|d|u|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
You know you've been raytracing too long when you know what each part in 
a motor looks like but don't know its name.
Quietly Watching

Post a reply to this message

William Tracy <wtr### [at] calpolyedu> wrote:
> Bill Pragnell wrote:
> >> BTW, it would be cool to see this image with radiosity. Bring it up the
> >> level of your 3D-rtc entry. ;-)
> > Errr, this image already relies heavily on radiosity... without radiosity
> > the shadowed areas are all black.
>
> Wow, on the first take it sure looked like just ambient to me, but I'm
> starting to see the radiosity effects on the inside of the sphere.
>
> Are you using any sort of sky sphere?

Yep, a big blue one! :-)

Actually, it's just a background { rgb <0.7,0.9,1> } but MegaPOV seems to
use the background in radiosity calculations by default.

Bill

Post a reply to this message

Bill Pragnell nous apporta ses lumieres en ce 2007/06/08 15:17:
> William Tracy <wtr### [at] calpolyedu> wrote:
>> Bill Pragnell wrote:
>>>> BTW, it would be cool to see this image with radiosity. Bring it up the
>>>> level of your 3D-rtc entry. ;-)
>>> Errr, this image already relies heavily on radiosity... without radiosity
>>> the shadowed areas are all black.
>> Wow, on the first take it sure looked like just ambient to me, but I'm
>> starting to see the radiosity effects on the inside of the sphere.
>>
>> Are you using any sort of sky sphere?
> 
> Yep, a big blue one! :-)
> 
> Actually, it's just a background { rgb <0.7,0.9,1> } but MegaPOV seems to
> use the background in radiosity calculations by default.
> 
> Bill
> 
Acording to my experience, POV-Ray normaly use the background, and any 
background feature like a sky_sphere, when evaluating radiosity.
Look at the attached image from a short code contest. The sky is background{rgb 
<.5,.7,1>}, the light  <8,4,2> and the ground rgb 1 using radiosity with default 
settings. You do see bluish areas.

-- 
Alain
-------------------------------------------------
I just got lost in thought. It wasn't familiar territory.

Post a reply to this message

Attachments:
Download 'gyscwj_l.jpg' (134 KB)

Preview of image 'gyscwj_l.jpg'

Alain <ele### [at] netscapenet> wrote:
> Acording to my experience, POV-Ray normaly use the background, and any
> background feature like a sky_sphere, when evaluating radiosity.

Ah, interesting, I wonder how I missed that. Something I've done in the past
definitely gave me the impression that POV-Ray ignores sky_sphere and
background in radiosity calculations... thanks for the pointer. :-)

Post a reply to this message