ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

root/Development/ray/src/gen/gensurf.c

Comparing ray/src/gen/gensurf.c (file contents):
Revision 1.5 by greg, Fri Jan 19 00:03:08 1990 UTC vs.
Revision 1.6 by greg, Fri Mar 2 17:24:02 1990 UTC

#	Line 34 | Line 34 | int  smooth = 0;               /* apply smoothing? */
34
35		char  *modname, *surfname;
36
37	<	double  funvalue(), l_hermite(), argument();
37	>	double  funvalue(), l_hermite(), l_bezier(), argument();
38
39		typedef struct {
40		FVECT  p;       /* vertex position */
#	Line 52 | Line 52 | char  *argv[];
52
53		varset("PI", PI);
54		funset("hermite", 5, l_hermite);
55	+	funset("bezier", 5, l_bezier);
56
57		if (argc < 8)
58		goto userror;
#	Line 415 | Line 416 | l_hermite()
416		argument(2)*(-2.0*t+3.0)*t*t +
417		argument(3)*((t-2.0)*t+1.0)*t +
418		argument(4)*(t-1.0)*t*t );
419	+	}
420	+
421	+
422	+	double
423	+	l_bezier()
424	+	{
425	+	double  t;
426	+
427	+	t = argument(5);
428	+	return( argument(1) * (1.+t*(-3.+t*(3.-t))) +
429	+	argument(2) * 3.*t*(1.+t*(-2.+t)) +
430	+	argument(3) * 3.*t*t*(1.-t) +
431	+	argument(4) * t*t*t );
432		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines (old)
>	Changed lines (new)