There are three major components of Sceneview:

Rendering engine
Qt widgets for building user interfaces.
Renderer / Input handler system

This first tutorial describes how to use one of the Sceneview Qt widgets to create a GUI. Later tutorials will introduce the other components.

#include <QApplication>
#include <sceneview/sceneview.hpp>
int main(int argc, char** argv)
{
  QApplication app(argc, argv);
  // Create a sv::Viewer. This is a convenience widget that extends QMainWindow
  // and creates a "stock" application with the following contained widgets:
  // - sv::Viewport
  // - sv::RendererWidgetStack
  // - sv::InputHandlerWidgetStack
  sv::Viewer viewer;
  // Show the stock viewer.
  viewer.show();
  // Run the Qt event loop
  return app.exec();
}

If you build and run this example, you would hopefully see something like:

tutorial_01_hello

This first snippet of code is our version of "Hello, world." sv::Viewer is a QMainWindow that bundles together a few commonly used widgets:

A viewport that contains the 3D rendering area
A couple more widgets that can be used for controlling rendering options and input handling (RendererWidgetStack and InputHandlerStack).

There's nothing much to see yet other than the widgets showing up. We'll get to those in later tutorials.

In advanced usage, you don't need to use sv::Viewer, and you can create your own QMainWindow and mix-and-match Sceneview widgets however you like. However, sv::Viewer can be useful for prototyping and for throwing together something quick-and-dirty.