diff options
| -rw-r--r-- | src/gui/math3d/qmatrix4x4.cpp | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/gui/math3d/qmatrix4x4.cpp b/src/gui/math3d/qmatrix4x4.cpp index 19d1fe6a8c..09b41ac570 100644 --- a/src/gui/math3d/qmatrix4x4.cpp +++ b/src/gui/math3d/qmatrix4x4.cpp @@ -1523,10 +1523,13 @@ void QMatrix4x4::perspective(float verticalAngle, float aspectRatio, float nearP #ifndef QT_NO_VECTOR3D /*! - Multiplies this matrix by another that applies an \a eye position - transformation. The \a center value indicates the center of the - view that the \a eye is looking at. The \a up value indicates - which direction should be considered up with respect to the \a eye. + Multiplies this matrix by a viewing matrix derived from an eye + point. The \a center value indicates the center of the view that + the \a eye is looking at. The \a up value indicates which direction + should be considered up with respect to the \a eye. + + \note The \a up vector must not be parallel to the line of sight + from \a eye to \a center. */ void QMatrix4x4::lookAt(const QVector3D& eye, const QVector3D& center, const QVector3D& up) { |