File:  [Research Unix] / researchv9 / jerq / include / 3d.h
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:21:59 2018 UTC (8 years, 3 months ago) by root
Branches: belllabs, MAIN
CVS tags: researchv9-SUN3_old, researchv9-SUN3, HEAD
researchv9-SUN3(old)

#define	ONE	16384		/* guarantee no overflow in xformp */
typedef short fract;		/* fixed point scaled by ONE */
typedef fract matrix[4][4];
typedef short coord[4];
typedef unsigned short angle;
typedef struct point3{
	fract x, y, z, w;
}Hcoord;
typedef struct Lpoint3{
	long x, y, z, w;
}Hcoordl;
#define	PI	(angle)32768
#define	mkangle(x)	cvtangle[x]
extern angle cvtangle[];
fract isin(), icos();
long isqrt();
#define	XAXIS	0
#define	YAXIS	1
#define	ZAXIS	2
long dot();
Hcoord cross();
Hcoordl xformp();
extern Bitmap *viewport;
Hcoord hcoord();

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