A recent discussion about using marching cubes to turn a blob into a mesh
got me thinking...

Currently the isosurface renders slowly.  I have a proposition:
Could we make a new object, maybe named iso_mesh, which looks exactly the
same as an isosurface in POV code, but is transformed to a mesh (via
marching cubes) before rendering.  This could potentially greatly
speed up the rendering of an isosurface (of course, at the cost of image
quality and memory usage).  I'll maybe work on it eventually, but I'm so
busy with other projects that it would be a long time before I could get
started, and by then maybe something more interesting would have come up
and I'd forget about it.  Thoughts?  Anyone interested in trying it?

-Nathan

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