public FMat3 RotateAround(Fix64 angle, FVec3 axis)
{
// rotate into world space
FQuat quaternion = FQuat.AngleAxis(Fix64.Zero, axis).Conjugate();
FMat3 worldSpaceMatrix = FromQuaternion(quaternion) * this;
// rotate back to matrix space
quaternion = FQuat.AngleAxis(angle, axis);
FMat3 qMat = FromQuaternion(quaternion);
worldSpaceMatrix = qMat * worldSpaceMatrix;
return(worldSpaceMatrix);
}
public static FMat4 FromRotationAxis(Fix64 angle, FVec3 axis)
{
FQuat quaternion = FQuat.AngleAxis(angle, axis);
return(FromQuaternion(quaternion));
}
public void Quat4()
{
FQuat fq = FQuat.Euler(( Fix64 )45, ( Fix64 )(-23), ( Fix64 )(-48.88));
FQuat fq2 = FQuat.Euler(( Fix64 )23, ( Fix64 )(-78), ( Fix64 )(-132.43f));
Quat q = Quat.Euler(45, -23, -48.88f);
Quat q2 = Quat.Euler(23, -78, -132.43f);
FVec3 fv = new FVec3(12.5f, 9, 8);
FVec3 fv2 = new FVec3(1, 0, 0);
Vec3 v = new Vec3(12.5f, 9, 8);
Vec3 v2 = new Vec3(1, 0, 0);
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
this._output.WriteLine(fq2.ToString());
this._output.WriteLine(q2.ToString());
Fix64 fa = FQuat.Angle(fq, fq2);
float a = Quat.Angle(q, q2);
this._output.WriteLine(fa.ToString());
this._output.WriteLine(a.ToString());
fq = FQuat.AngleAxis(( Fix64 )(-123.324), fv);
q = Quat.AngleAxis(-123.324f, v);
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
fa = FQuat.Dot(fq, fq2);
a = Quat.Dot(q, q2);
this._output.WriteLine(fa.ToString());
this._output.WriteLine(a.ToString());
fq = FQuat.FromToRotation(FVec3.Normalize(fv), fv2);
q = Quat.FromToRotation(Vec3.Normalize(v), v2);
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
fq = FQuat.Lerp(fq, fq2, ( Fix64 )0.66);
q = Quat.Lerp(q, q2, 0.66f);
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
fq = FQuat.Normalize(fq);
q.Normalize();
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
fq.Inverse();
q = Quat.Inverse(q);
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
fv = FQuat.Orthogonal(fv);
v = Quat.Orthogonal(v);
this._output.WriteLine(fv.ToString());
this._output.WriteLine(v.ToString());
fq = FQuat.Slerp(fq, fq2, ( Fix64 )0.66);
q = Quat.Slerp(q, q2, 0.66f);
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
fq = FQuat.LookRotation(FVec3.Normalize(fv), fv2);
q = Quat.LookRotation(Vec3.Normalize(v), v2);
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
fq.ToAngleAxis(out fa, out fv);
q.ToAngleAxis(out a, out v);
this._output.WriteLine(fa.ToString());
this._output.WriteLine(a.ToString());
this._output.WriteLine(fv.ToString());
this._output.WriteLine(v.ToString());
fq = fq.Conjugate();
q = q.Conjugate();
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
fq.SetLookRotation(FVec3.Normalize(fv), fv2);
q.SetLookRotation(Vec3.Normalize(v), v2);
this._output.WriteLine(fq.ToString());
this._output.WriteLine(q.ToString());
}