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-rw-r--r--src/gui/math3d/qvector4d.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gui/math3d/qvector4d.cpp b/src/gui/math3d/qvector4d.cpp
index 74dedc4..23befc0 100644
--- a/src/gui/math3d/qvector4d.cpp
+++ b/src/gui/math3d/qvector4d.cpp
@@ -59,6 +59,11 @@ QT_BEGIN_NAMESPACE
The QVector4D class can also be used to represent vertices in 4D space.
We therefore do not need to provide a separate vertex class.
+ \bold{Note:} By design values in the QVector4D instance are stored as \c float.
+ This means that on platforms where the \c qreal arguments to QVector4D
+ functions are represented by \c double values, it is possible to
+ lose precision.
+
\sa QQuaternion, QVector2D, QVector3D
*/