56 |
|
multv3(rdx, r->rdir, co->tm); |
57 |
|
/* compute intersection */ |
58 |
|
|
59 |
< |
if (o->otype == OBJ_CONE || o->otype == OBJ_CUP) { |
59 |
> |
if ((o->otype == OBJ_CONE) | (o->otype == OBJ_CUP)) { |
60 |
|
|
61 |
|
a = rdx[0]*rdx[0] + rdx[1]*rdx[1] - rdx[2]*rdx[2]; |
62 |
|
b = 2.0*(rdx[0]*rox[0] + rdx[1]*rox[1] - rdx[2]*rox[2]); |
63 |
|
c = rox[0]*rox[0] + rox[1]*rox[1] - rox[2]*rox[2]; |
64 |
|
|
65 |
< |
} else if (o->otype == OBJ_CYLINDER || o->otype == OBJ_TUBE) { |
65 |
> |
} else if ((o->otype == OBJ_CYLINDER) | (o->otype == OBJ_TUBE)) { |
66 |
|
|
67 |
|
a = rdx[0]*rdx[0] + rdx[1]*rdx[1]; |
68 |
|
b = 2.0*(rdx[0]*rox[0] + rdx[1]*rox[1]); |
78 |
|
b = root[0]*rdx[0] + rox[0]; |
79 |
|
c = root[0]*rdx[1] + rox[1]; |
80 |
|
a = b*b + c*c; |
81 |
< |
if (a < CO_R0(co)*CO_R0(co) || a > CO_R1(co)*CO_R1(co)) |
81 |
> |
if (a > CO_R1(co)*CO_R1(co) || a < CO_R0(co)*CO_R0(co)) |
82 |
|
return(0); /* outside radii */ |
83 |
|
r->ro = o; |
84 |
|
r->rot = root[0]; |
126 |
|
} |
127 |
|
for (i = 0; i < 3; i++) |
128 |
|
r->ron[i] = (rdx[i] - b*co->ad[i])/a; |
129 |
< |
if (o->otype == OBJ_CONE || o->otype == OBJ_CUP) |
129 |
> |
if ((o->otype == OBJ_CONE) | (o->otype == OBJ_CUP)) |
130 |
|
for (i = 0; i < 3; i++) |
131 |
|
r->ron[i] = (co->al*r->ron[i] - c*co->ad[i]) |
132 |
|
/ co->sl; |
133 |
|
a = DOT(r->ron, r->ron); |
134 |
< |
if (a > 1.+FTINY || a < 1.-FTINY) { |
134 |
> |
if ((a > 1.+FTINY) | (a < 1.-FTINY)) { |
135 |
|
c = 1./(.5 + .5*a); /* avoid numerical error */ |
136 |
|
r->ron[0] *= c; r->ron[1] *= c; r->ron[2] *= c; |
137 |
|
} |