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Excellent !
Thank you !
Thomas de Groot <tho### [at] degroot org> wrote:
> On 15-6-2012 0:11, clipka wrote:
> > Am 14.06.2012 23:25, schrieb rodv92:
> >> Hello, i would like to know how to make this day/sunset/night transition.
> >>
>
> I think you should read the tutorials by Bruno Cabasson in
> povray.binaries.tutorials: TerraPOV - Sky system - .
>
> For Sun colours/temperatures, I use LightSysIV
> http://www.ignorancia.org/en/index.php?page=Lightsys and in particular
> the module CIE.inc which lets you modulate the light colour from Kelvin
> 2800=red to 7500=blue white.
>
> A typical set of code I use myself is like this (with thanks to Jaime
> Vives Piqueres in particular):
>
> #declare Kelvin = 6200;
> #declare SunFactor = 4;
>
> #include "CIE.inc"
> #declare SunColor = Blackbody(Kelvin)*SunFactor;
> #declare SunDis = vlength(MySunPosition)*2/215;
>
> #if (Area)
> #debug "\nUsing an area_light for the Sun.\n"
> light_source{
> SunPosition
> color SunColor
> area_light
> SunDis*x, SunDis*z,
> 5, 5
> adaptive 2
> jitter
> circular
> orient
> parallel
> point_at <0, 0, 0>
> }
> #else
> light_source {
> SunPosition
> color SunColor
> parallel
> point_at <0, 0, 0>
> }
> #end
>
> // a sky sphere
> #declare fn_horizon = function {max(y, 0)}
>
> #declare fn_sun =
> function {
> pattern {
> spherical
> scale 3
> translate z
> rotate -Al*x
> rotate Az*y
> }
> }
>
> sky_sphere {
> pigment {
> function {pow(fn_horizon(x,y,z)*(1-fn_sun(x,y,z)), 0.400)}
> color_map {
> [0.000 color SunColor/SunFactor]
> [0.426 color srgb <94, 115, 215>/255]
> }
> }
> }
>
> I think you could adapt this for your needs.
>
> Thomas
Excellent !
Thank you !
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