Intar is integer arithmetic library for .NET / Unity
var position = Vector3I17F15.One;
var t = Vector3I17F15.UnitX;
var r = QuaternionI2F30.RotateXP5(I17F15.One);
var s = Vector3I17F15.One;
var matrix = AffineTransform3I17F15.Trs(t, r, s);
position = matrix * position;The above code has the same meaning as the following code.
var position = System.Numerics.Vector3.One;
var t = System.Numerics.Vector3.UnitX;
var r = System.Numerics.Quaternion.CreateFromYawPitchRoll(
0.0f, (float)(0.5 * Math.PI), 0.0f
);
var s = System.Numerics.Vector3.One;
var matrix
= System.Numerics.Matrix4x4.CreateScale(s)
* System.Numerics.Matrix4x4.CreateFromQuaternion(r)
* System.Numerics.Matrix4x4.CreateTranslation(t);
position = System.Numerics.Vector3.Transform(position, matrix);