"Hugo Asm" <hua### [at] post3teledk> wrote:
> Some features may be readily available in Virtual Light, but when you get
to
> know POV-Ray, there are a lot of "plugins" that I think it will turn
around
> the picture for you. They are usually called "include files" or "macros".

Can you please recommend a good source for large collection of plugins?
Thanks.

> Regarding your sunlight question, I'll need a bit more information before
> I'm sure what you're after. But if you want to use "real" objects or skies
> as light sources, try radiosity (for diffuse reflections) and the
> "reflection" keyword on objects where you want specular reflection from
the
> sun.

Quoting from Virtualight manual:
"Sunlight is part of the global illumination method provided by VirtuaLight
Interface, allows open sky renders of the scene using environment lights.
Sunlight automatically controls the position of the sun in the sky dome
according to a time value. It can cast sharp shadows or extremely soft
shadows, but it only has effect when skylight is enabled.  SkyLight enables
the simulation of diffuse solar radiation using a quasi Monte Carlo
ray-tracing algorithm. This skylight is treated as a
large hemispherical direct light source at infinity also named sky dome. It
completely surrounds the world and doesn't cast any shadow."

SkyLight (int samples, rgbexpr color, float brightness) where:
samples: the number of ray samples to cast at each intersection point in
order to estimate irradiance; and

SunLight (int hours : int minutes, int samples, float brightness, rgb color)

Daniel.

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