lien <nomail@nomail> wrote:
> 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.

  Isosurfaces don't use anything like marching cubes, and I don't really
understand what is the relation between isosurfaces and volume raytracing.

-- 
                                                          - Warp

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