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root/radiance/ray/src/hd/sm_geom.h
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Comparing ray/src/hd/sm_geom.h (file contents):
Revision 3.3 by gwlarson, Fri Sep 11 11:52:26 1998 UTC vs.
Revision 3.5 by gwlarson, Tue Oct 6 18:16:54 1998 UTC

# Line 8 | Line 8
8  
9   /* Assumes included after standard.h  */
10  
11 + #include <values.h>
12 +
13   #define ZERO(x) ((x) < FTINY && (x) > -FTINY)
14   #define EQUAL(a,b) ZERO((a) - (b))
15  
# Line 16 | Line 18
18   #define FALSE 0
19   #endif
20  
21 + typedef struct _FPEQ {
22 +    FVECT n;
23 +    double d;
24 +    char x,y,z;
25 + }FPEQ;
26 +
27 + #define FP_N(f) ((f).n)
28 + #define FP_D(f) ((f).d)
29 + #define FP_X(f) ((f).x)
30 + #define FP_Y(f) ((f).y)
31 + #define FP_Z(f) ((f).z)
32 +  
33 + typedef long BCOORD;
34 + typedef long BDIR;
35 + typedef long TINT;
36 + #define BITS_BCOORD     (BITS(long)>>1)
37 + #define SHIFT_MAXBCOORD (BITS_BCOORD-2)  
38 + #define MAXBCOORD      (1L << SHIFT_MAXBCOORD)
39 + #define MAXBCOORD2      (MAXBCOORD>>1)
40 + #define MAXBDIR        MAXBCOORD
41 + #define MAXT           MAXBCOORD
42 + #define HUGET      MAXLONG
43 +
44   #define M_2_3_PI PI*2/3
45  
46 + #ifndef INVALID
47   #define INVALID -1
48 + #endif
49  
50   #define GT_INVALID  0
51   #define GT_VERTEX   1
# Line 48 | Line 75
75  
76   #define MIN_VEC3(v) ((v)[0]<(v)[1]?((v)[0]<(v)[2]?(v)[0]:v[2]): \
77                       (v)[1]<(v)[2]?(v)[1]:(v)[2])
78 <  
78 > #define MAX3(a,b,c) (((b)>(a))?((b) > (c))?(b):(c):((a)>(c))?(a):(c))  
79 > #define MIN3(a,b,c) (((b)<(a))?((b) < (c))?(b):(c):((a)<(c))?(a):(c))                      
80 > #define MAX(a,b)    (((b)>(a))?(b):(a))  
81 > #define MIN(a,b)  (((b)<(a))?(b):(a))  
82  
83   #define SUM_3VEC3(r,a,b,c) ((r)[0]=(a)[0]+(b)[0]+(c)[0], \
84     (r)[1]=(a)[1]+(b)[1]+(c)[1],(r)[2]=(a)[2]+(b)[2]+(c)[2])
# Line 88 | Line 118 | double tri_normal();
118   /* double spherical_edge_normal(FVECT v0,FVECT v1,FVECT n,char norm) */
119   double spherical_edge_normal();
120  
121 + #define point_in_stri_n(n0,n1,n2,p) \
122 +                     ((DOT(n0,p)<=0.0)&&(DOT(n1,p)<=0.0)&&(DOT(n2,p)<=0.0))
123  
124 + #define PT_ON_PLANE(p,peq) (DOT(FP_N(peq),p)+FP_D(peq))

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