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Comparing ray/src/cv/mgflib/mgfdoc.tr (file contents):
Revision 1.16 by greg, Tue Mar 18 11:43:22 1997 UTC vs.
Revision 1.18 by greg, Fri Mar 21 12:32:30 1997 UTC

# Line 279 | Line 279 | Context        Cntl. Entity    Default Value   Field Entities  Affe
279   =       =       =       =       =
280   Object  o       -       -       -
281   Transform       xf      -       -       T{
282 < f, sph, cyl, cone,
282 > f, fh, sph, cyl, cone,
283   ring, torus, prism
284   T}
285   Material        m       2-sided black   T{
286   sides, rd, td,
287   ed, rs, ts, ir
288   T}      T{
289 < f, sph, cyl, cone,
289 > f, fh, sph, cyl, cone,
290   ring, torus, prism
291   T}
292   Color   c       neutral grey    T{
# Line 298 | Line 298 | Vertex v       T{
298   (0,0,0),
299   no normal
300   T}      p, n    T{
301 < f, sph, cyl, cone,
301 > f, fh, sph, cyl, cone,
302   ring, torus, prism
303   T}
304   .TE
# Line 817 | Line 817 | Geometry
817   .TS
818   lw(.75i) lw(1.75i) lw(3i).
819   f       v1 v2 v3 ...    polygon using current material, spec. vertices
820 + fh      v1 v2 v3 - ...  face with explicit holes
821   sph     vc radius       sphere
822   cyl     v1 radius v2    truncated right cylinder (open-ended)
823   cone    v1 rad1 v2 rad2 truncated right cone (open-ended)
# Line 1902 | Line 1903 | and
1903   require a normal direction.
1904   An
1905   .UL f
1906 + or
1907 + .UL fh
1908   entity will interpolate vertex normals if given, and
1909   use the polygon plane normal otherwise.
1910   See the
# Line 1941 | Line 1944 | SEE ALSO
1944   .UL cone,
1945   .UL cyl,
1946   .UL f,
1947 + .UL fh,
1948   .UL n,
1949   .UL p,
1950   .UL prism,
# Line 1985 | Line 1989 | SEE ALSO
1989   .UL cone,
1990   .UL cyl,
1991   .UL f,
1992 + .UL fh,
1993   .UL n,
1994   .UL prism,
1995   .UL ring,
# Line 2031 | Line 2036 | xf
2036   SEE ALSO
2037   .LP
2038   .UL f,
2039 + .UL fh,
2040   .UL p,
2041   .UL prism,
2042   .UL ring,
# Line 2173 | Line 2179 | either all normals or no normals, and to stick with tr
2179   when normals are used.
2180   Also, specified normals should point in the general direction of the
2181   surface for best results.
2182 + .LP
2183 + Vertices should not be shared between any two contours.
2184 + I.e., a hole should not share a vertex or edge with the perimeter or
2185 + another hole, or incorrect rendering may result.
2186   .SH
2187   EXAMPLE
2188   .DS
# Line 2240 | Line 2250 | SEE ALSO
2250   .UL cone,
2251   .UL cyl,
2252   .UL f,
2253 + .UL fh,
2254   .UL m,
2255   .UL prism,
2256   .UL ring,
# Line 2297 | Line 2308 | SEE ALSO
2308   .LP
2309   .UL cone,
2310   .UL f,
2311 + .UL fh,
2312   .UL m,
2313   .UL prism,
2314   .UL ring,
# Line 2369 | Line 2381 | SEE ALSO
2381   .LP
2382   .UL cyl,
2383   .UL f,
2384 + .UL fh,
2385   .UL m,
2386   .UL prism,
2387   .UL ring,
# Line 2435 | Line 2448 | SEE ALSO
2448   .UL cyl,
2449   .UL cone,
2450   .UL f,
2451 + .UL fh,
2452   .UL m,
2453   .UL ring,
2454   .UL sph,
# Line 2491 | Line 2505 | SEE ALSO
2505   .UL cyl,
2506   .UL cone,
2507   .UL f,
2508 + .UL fh,
2509   .UL m,
2510   .UL prism,
2511   .UL sph,
# Line 2551 | Line 2566 | SEE ALSO
2566   .UL cyl,
2567   .UL cone,
2568   .UL f,
2569 + .UL fh,
2570   .UL m,
2571   .UL prism,
2572   .UL ring,

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