Mazes in 3D

After sorting some of my issues with trig (though not all of them), I spun up some simple maze views this morning, based on Ray's maze generator.  Assume we have this maze (straight out of genMaze(10, 10) and into a printing loop like Ray demoed at CFUnited):

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From the model (a two-dimensional array), I can make a pretty map of it (demoing the camera rotation in both horizontal and vertical directions).  I discuss the obviously erroneous curvature below.

And then we can also stand in front of the doorway and look down the initial hallway (much like the original version did, though this hallway is far less interesting).

Both of these captures are generated the "right" way, with the maze plotted in three-space and then rendered into a 2D image.

The curvature of the map view is due to the issues still remaining in my camera/POV rotation logic.  The camera rotates correctly (both vertically and horizontally), but it also "curls" the world based on the degree of vertical rotation.  I'm not sure what I've actually done wrong, other than not understanding anything about how to do 3D rendering.  : )  But everything at least lays out correctly now, even if it's on a weird curve, so that's a large improvement. Real6

That particular map capture was from a very high camera position and a correspondingly large "tip down" of the camera to accentuate the curvature issue.  With a smaller rotation, the curvature is far less grotesque, though still noticeable.

UPDATE: Here's another capture (of the same "world" as the image in my original post) that illustrates the curve issue in better detail.

In the maze map at the top, every block is drawn individually, so the curve seems uniform.  But in this capture you can see how that smoothness is localized.  The grid is a collection of lines from end to end, but the lines themselves don't curve, just the endpoints.  So you get horribly wonky drawing when you don't have a uniform distribution of localized segments.  As such, fixing this is rather essential for this to have any sort of utility beyond academic pursuits.