Some images rendered with Ume-Lebern:

The X-Mas Tree dataset rendered with depth compositing raycasting.

The lobster dataset rendered with maximum intensity projection and a transfer function designed to let it look like an infrared image. (Actually, we have no idew how an IR image of a lobster might look like, but that is how we imagine it does)

The Stagbeetle dataset rendered with depth compositing raycasting.