private void Update(EvaluationContext context)
{
var s = Scale.GetValue(context) * UniformScale.GetValue(context);
var r = Rotation.GetValue(context);
float yaw = MathUtil.DegreesToRadians(r.Y);
float pitch = MathUtil.DegreesToRadians(r.X);
float roll = MathUtil.DegreesToRadians(r.Z);
var t = Translation.GetValue(context);
var objectToParentObject = Matrix.Transformation(Vector3.Zero, Quaternion.Identity, new Vector3(s.X, s.Y, s.Z), Vector3.Zero,
Quaternion.RotationYawPitchRoll(yaw, pitch, roll), new Vector3(t.X, t.Y, t.Z));
// transpose all as mem layout in hlsl constant buffer is row based
objectToParentObject.Transpose();
if (Invert.GetValue(context))
{
objectToParentObject.Invert();
}
_matrix[0] = objectToParentObject.Row1;
_matrix[1] = objectToParentObject.Row2;
_matrix[2] = objectToParentObject.Row3;
_matrix[3] = objectToParentObject.Row4;
Result.Value = _matrix;
}