Can someone please explain to me what does this function do :

void QMatrix4x4::rotate (   const QQuaternion &     quaternion  )   

In the documentation, it's written that it multiples this matrix by another that rotates coordinates according to a specified quaternion. The question is which matrix is " this matrix" ? does it calculate a rotation matrix ?

CodePudding user response：

The question is which matrix is "this matrix" ?

"This matrix" refers to the matrix that this member function is called on.

does it calculate a rotation matrix ?

According to this source code, yes. The current matrix is multiplied by a rotation matrix that corresponds to the quaternion.