Yes, I want the output image data. What is the difference between the
output image data with the reflection data?
   The following is what I want to do:
   Suppose I put a radar in the camera position. Because the radar emit the
electromagnetic wave, so it also likes a light source. I want the data back
to the radar, that is to say, the camera position. I think that this is the
same data which I can see by render some pov file(output image data,
right?).

Thank you for your help
Best Regard
Wu Yang

"Christopher James Huff" <chr### [at] maccom> wrote in message
news:chr### [at] netplexaussieorg...
> In article <3dab0537@news.povray.org>, "Wu Yang" <wya### [at] cswrightedu>
> wrote:
>
> >    Yes, I got it. Thank you very much. But I do not know why "box.pov"
is
> > not a scene with reflection. I do see it. Why can I see it?
>
> Are you talking about the one in the standard example scenes?
> scenes/objects/box.pov? The one I have doesn't have any reflection. Did
> you modify it? Where do you see it?
>
>
> > The data for displaying is what I want to get. Is it called light
> > internsity?
>
> Data for displaying what? What exactly do you want?
> The Reflect() function is called when POV computes a reflected ray. If
> the scene doesn't use reflection, it is never called. It has nothing to
> do with anything being displayed, other than being one step in the
> process of computing the final pixel color. Do you want the output
> image? That has nothing to do with reflection, and is a completely
> different part of the code.
>
> --
> Christopher James Huff <cja### [at] earthlinknet>
> http://home.earthlink.net/~cjameshuff/
> POV-Ray TAG: chr### [at] tagpovrayorg
> http://tag.povray.org/

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