This is a vuonode that creates a configurable arc, and an example composition.

A soft pixellate filter node and example composition with adjustable background color.

This is a vuonode that creates a height field effect, implemented as a scene deform.

This is a different approach to a height field than the previously posted height field shader, and can work in conjunction with the built in lighting, shade with image, etc. Both have their advantages in certain contexts.

Known issues: This seems to not work right with point mesh.