4D float scalar.
typedef struct S4f

X axis value.
float x;

Y axis value.
float y;

Z axis value.
float z;

Homogeneous value.Vector: W = 0. Point: W = 1.
float w;

End block 'S4f'
} S4f;

Construct 3D float scalar from a 4D float scalar.
API S3f S4fMakeS3f(S4f s);
s: 4D float scalar.
returns: 3D float scalar.

Construct 4D float scalar.
API S4f S4fMake(S3f s, float w);
s: 3D float scalar.
w: Homogeneous value. 0=Vector 1=Point.
returns: 4D float scalar.