diff options
| -rw-r--r-- | src/gui/opengl/qopenglvertexarrayobject.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/gui/opengl/qopenglvertexarrayobject.cpp b/src/gui/opengl/qopenglvertexarrayobject.cpp index 3b106fecf5..c24254756b 100644 --- a/src/gui/opengl/qopenglvertexarrayobject.cpp +++ b/src/gui/opengl/qopenglvertexarrayobject.cpp @@ -386,6 +386,16 @@ QOpenGLVertexArrayObject::~QOpenGLVertexArrayObject() that supports vertex array objects current for this function to succeed. Returns \c true if the OpenGL vertex array object was successfully created. + + When the return value is \c false, vertex array object support is not available. This + is not an error: on systems with OpenGL 2.x or OpenGL ES 2.0 vertex array objects may + not be supported. The application is free to continue execution in this case, but it + then has to be prepared to operate in a VAO-less manner too. This means that instead + of merely calling bind(), the value of isCreated() must be checked and the vertex + arrays has to be initialized in the traditional way when there is no vertex array + object present. + + \sa isCreated() */ bool QOpenGLVertexArrayObject::create() { |