Here are some screenshots showing images captured form the Volume Viewer:

No lighting
Full model, No lighting

This is the simplest view available. The model is rendered simply by comparing its density at any particular point to a color map provided by the user.

Sections removed, Diffuse Light
Head Segments

Here the head is shown with sections cut away. Shadows are added to provide visual cues. Some sections of uniform density are not drawn, giving the model a hollowed out look.

Side view, shadows, hollowed out

Another hollowed out view, this time from the side. The color map the user provides to the program can define transparent regions so that edges are prominent.

Side view, shadows
Opaque side view

Here is the above view rendered with different lighting parameters. Here internal material is not removed during the rendering, giving it a much more solid look. A different color scheme is also used.

Opaque face, sharp

The full model is shown, with shadows.

Opaque face, soft

Similar to the above, but the entire model has been made more translucent, giving it a softer appearance.

Skull perspective

In this model, the dense bony areas are given a solid orange color while the less dense skin is given a thin red color. This allows the skull to appear clearly while still giving an indication of the facial features.

Skull perspective, few layers

Same as above, except fewer slices are rendered. Notice the increased banding. Using fewer layers can make it easier to manipulate the model at the expense of a more banded rendering quality.

Skull side

Another view of the skull from the side.

Skull side 2

Using a cut away view with no shadows can show skeletal features vividly.

Skull phong

By using a Phong lighting effect, you can provide a shinier, plastic like appearance.

Skull translucent

Finally, here is a shadowed view rendered with varying levels of transparency. More transparent views allow more of the underlying structure to be seen.