Warp <war### [at] tagpovrayorg> wrote:
> lien <nomail@nomail> wrote:
> > In fact, I want to render the implicit iso-surface embeded in 3D volume data
> > set.
>
>   Could you explain what that means?
>
> --
>                                                           - Warp

Oh, maybe my description is not so clear.
what i want is the volume raytracing technique based feature in povray.
I know that we can render the implicit iso-surface by using the existing
keyword "isosurface" in povray, but it seems that it is based on some
technique like Marching Cube, which first extraction the geometry of the
iso-surface. But with volume raytracing technique, we can directly raytrace
the volume data and save the geometry extracting step.

who can tell me something about it? does any xx-ray can do such things
exists?

thanks

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