At the Diderot examples page on github, example programs are being added to document and demonstrate the features of Diderot.
Simple volume rendering
This program is a simple volume renderer for CT images. It samples the field for opacity and uses the gradient field to compute the surface normal, which is used for lighting the surface.
This example is a volume renderer that colors the surface based on its curvature.
This example uses strands to find isolines in a 2d image.