Qpainter opengl example. Apr 14, 2015 · I am using C++: Qt 5 and visual studio 2013. QPa...
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Qpainter opengl example. Apr 14, 2015 · I am using C++: Qt 5 and visual studio 2013. QPainter can be used to draw on a paint device, such as a QWidget, a QPixMap, or QImage. Qt provides support for integration with OpenGL implementations, giving developers the opportunity to display hardware accelerated 3D graphics alongside a more conventional user interface. The QWidget is shown with anti-aliasing enabled, and the QGLWidget will also use anti-aliasing if the required extensions are supported by your system's OpenGL driver. The QWidget is shown with anti-aliasing enabled, and the QOpenGLWidget will also use anti-aliasing if the required extensions are supported by your system's OpenGL driver. QNanoPainter is an OpenGL accelerated C++ vector drawing library for Qt, offering optimal performance, productivity and rendering quality all-in-one. In this example, we perform the same painting operations on a QWidget and a QOpenGLWidget. . I created a simple GUI and put myQOpenGLWidget in it. I am already drawing the plots, axes and ticks using my own openGl shaders. Everything works fine and now I want to add the description to my axes and ticks to make the graph possible to analysis. 2D Painting Example The 2D Painting example shows how QPainter and QOpenGLWidget can be used together to display accelerated 2D graphics on supported hardware. In this example, we perform the same painting operations on a QWidget and a QGLWidget. These examples demonstrate the basic techniques used to take advantage of OpenGL in Qt applications. QNanoPainter API is a mixture of QPainter and HTML5 canvas APIs. Using polymorphism, this will come in handy, if you create your custom widgets.
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