![](/i/fill.gif) |
![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
What is the difference between
light_source { 0*x color red 1.0 green 1.0 blue 1.0 ...etc.
and
light_source{ 0*x color red 0.5 green 0.5 blue 0.5 ... or any < 1.0
for all three colors?
Does using lower but equivalent values for the three colors mean lower
intensity of light?
TIA,
Mark M. Wilson
Post a reply to this message
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
"Mark M. Wilson" wrote:
>
> Does using lower but equivalent values for the three colors mean lower
> intensity of light?
Yes.
Markus
Post a reply to this message
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
Markus Becker wrote:
> "Mark M. Wilson" wrote:
>>
>> Does using lower but equivalent values for the three colors mean lower
>> intensity of light?
>
> Yes.
>
This also means that the values can be higher than 1.0.
Post a reply to this message
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
> This also means that the values can be higher than 1.0.
Absolutely. In many cases it's better to use values higher than 1.0,
especially when the light fades out in the distance like light sources do in
reality.
Post a reply to this message
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
This I did not know! I guess I need to bone up on lighting in POV!
Thanks, folks!
--Mark
Apache wrote:
>
> > This also means that the values can be higher than 1.0.
> Absolutely. In many cases it's better to use values higher than 1.0,
> especially when the light fades out in the distance like light sources do in
> reality.
Post a reply to this message
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
Well, what I mean is I didn't know you could specify values greater than
1.0. Of course I knew that natural light DOES fade out in the
distance.... :-)
--Mark
"Mark M. Wilson" wrote:
>
> This I did not know! I guess I need to bone up on lighting in POV!
> Thanks, folks!
> --Mark
>
> Apache wrote:
> >
> > > This also means that the values can be higher than 1.0.
> > Absolutely. In many cases it's better to use values higher than 1.0,
> > especially when the light fades out in the distance like light sources do in
> > reality.
Post a reply to this message
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
Fading light brightness is not usually specified with the color intensity
but with fade_distance. The larger the fade_distance, the brighter the light.
--
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -
Post a reply to this message
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
I have no idea who it was or when it was, but someone posted a nice lighting
macro which enables you to define lightsources by using real life values (40
watts, etc.)
--
Apache
http://geitenkaas.dns2go.com/experiments/
apa### [at] yahoo com
Post a reply to this message
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |
| ![](/i/fill.gif) |
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
| ![](/i/fill.gif) |