"kmcpeak" <kmc### [at] ethzch> wrote:
> I would like to make
> the POV ray image look more 3D, more specifically I would like the pyramids to
> look like they go into the surface whereas now most people think they come out
> of the surface. The microscopy image does a good job of this.

Hi kmcpeak,

Notice in the SEM(?) image how the pyramids become darker the farther in they
go. This makes their true orientations almost unmistakable. A large area_light
in your scene should help, or radiosity, as clipka said.

Also, in your rendered image, the pyramids seem to be coming out of the surface
partly because of where your light_source is situated. People tend to assume
that light is always coming from above, thus when viewing your image they think
the pyramids are protruding instead of intruding. Try repositioning your
light_source above (+y, +z) the scene, as it is in the micrograph.

With those two things taken care of, there should be no doubt when people view
your image.

Sam

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