> Would it be possible to do Z-buffer rendering in MoI?
> Or something like it?

Hi Jesse, it should be possible eventually but it will be a while. I will probably try to add some types of rendering capabilities for version 2.

Positioning the light won't really get you a height map image, because the standard light-based shading creates a color depending on the angle between the surface normal and the light.

For a height map you don't care about the angle, you care just about the position...

Rhino used to have a "ZBuffer" command that you could use to create a height map, so you could give that a try.

- MIchael