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perlin
[vg.git]
/
vg_m.h
diff --git
a/vg_m.h
b/vg_m.h
index ee8b1074ce93bad2bdc96682544225198bd350e0..2a5082d9b813c53687fb60254b47b5c141836caa 100644
(file)
--- a/
vg_m.h
+++ b/
vg_m.h
@@
-1386,8
+1386,7
@@
static inline void q_inv( v4f q, v4f d )
static inline void q_nlerp( v4f a, v4f b, float t, v4f d )
{
static inline void q_nlerp( v4f a, v4f b, float t, v4f d )
{
- if( v4_dot(a,b) < 0.0f )
- {
+ if( v4_dot(a,b) < 0.0f ){
v4_muls( b, -1.0f, d );
v4_lerp( a, d, t, d );
}
v4_muls( b, -1.0f, d );
v4_lerp( a, d, t, d );
}
@@
-2084,4
+2083,13
@@
static void eval_bezier_time( v3f p0, v3f p1, v3f h0, v3f h1, float t, v3f p )
v3_muladds( p, p0, 3.0f*tt -ttt -3.0f*t +1.0f, p );
}
v3_muladds( p, p0, 3.0f*tt -ttt -3.0f*t +1.0f, p );
}
+static void eval_bezier3( v3f p0, v3f p1, v3f p2, float t, v3f p )
+{
+ float u = 1.0f-t;
+
+ v3_muls( p0, u*u, p );
+ v3_muladds( p, p1, 2.0f*u*t, p );
+ v3_muladds( p, p2, t*t, p );
+}
+
#endif /* VG_M_H */
#endif /* VG_M_H */