🚀 go-pugleaf

In article <1992Jul29.005516.57598@cc.usu.edu> sl8nl@cc.usu.edu writes:
>My perspective mapping and scaling code is under 600 bytes long.  The scaling
>code is 332 bytes long.  The perspective mapper is around 120 bytes.
>I will post these tomorrow.
>
>I had written another longer message, but I accidently aborted it (I hate
>myself now).  That message described the whole process, but I'll let
>the code speak for itself.
>
>Josh
>

The original post mentioned "texture mapping".  What the heck is
"perspective mapping", and what does it have to do with texture??!!
"Texture mapping" is not another term for "3-d line drawing in perspective".
Texture mapping is where you map a bit-mapped 2-d image (a scanned-in photo,
for example) onto the surface of a 3-d object (usually a polygon or a group
of polygons).  I suggest you read "Survey of Texture Mapping" by Paul S.
Heckbert (Pixar), IEEE CG&A, Nov. 1986.