POV-Ray : Newsgroups : povray.text.tutorials : Non-emitting 3D pattern--> media? : Re: Non-emitting 3D pattern--> media? Server Time
18 May 2024 13:26:57 EDT (-0400)
  Re: Non-emitting 3D pattern--> media?  
From: Greg M  Johnson
Date: 7 Feb 1999 17:58:56
Message: <36be1ab0.0@news.povray.org>
No, that won't do.

I want it to be able to react "diffusely" to normal light, not absorb certain
colors out of spotlights shone on it.

I want to use a transparent component in the wood texture to make the object
look like it is made out of, for want of a better word, "pancake slices."  I
want the pancakes to be dark on one side (like wood).

I want a "volumetric" application of exactly what a wood pigment pattern would
do to the surface of an object in povray 3.02!


Ken wrote:

> Greg M. Johnson wrote:
> >
> > If I were to apply a "wood" pattern texture to an object in Povray 3.02,
> > with a transparent color, I would be able to get a kind of banding on
> > the SURFACE only of the object.  The texture is applied only to the
> > surface.
> >
> > In Povray 3.1, if I apply a wood pattern to the emitting media of an
> > object,  I get nice glowing pancakes, or, I get a "volumetric"
> > application of my texture.  But it glows in the dark and each pancake
> > slice is transparent.
> >
> > Suppose I want non-transparent, non-glowing, volumetric "slice."  How is
> > this done in 3.1?
>
> I think the answer lies in the media type of which there are two -
> emmiting and absorbing. If you don't want it to glow have it suck
> light instead :)
>
> --
> Ken Tyler
>
> tyl### [at] pacbellnet


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