Editing Glome tutorial (section)

==Command line options, key commands==

(Note: None of these options are currently implemented in GlomeView.  We may re-enable this at some point.)

These are pretty sparse at the moment.  You can specify an input scene file in NFF format with the "-n [filename]" option, and there is one such scene included with Glome, a standard [http://tog.acm.org/resources/SPD/ SPD] level-3 sphereflake.

NFF isn't very expressive (and it was never intended to be), so I won't say much about it here.  Glome supports most of the basic features of NFF except for refraction.  My approach to polygon tesselation is also questionable: the SPD "gears" scene, for instance, doesn't render correctly.

You may have to adjust the lighting to get satisfactory results (i.e. by adjusting the value of "intensity" in "shade" function in the Trace.hs file and recompiling).  NFF doesn't define a specific intensity, and I'm not sure what sort of falloff (if any) Eric Haines used when he rendered the reference images.

Once an image is rendered, typing "q" with the rendering window in focus will close Glome.  Typing "s" will print a dump of the internal representation of the scene.  (Not very useful at this stage, perhaps, but it's a useful debugging tool that might come in handy later.)