message: On platforms with nvidia drivers, try using glBlendFuncSeparate
  Should fix and related.
  Thanks to comment on Qt bug reports:
  Giuseppe D'Angelo for a related comment:
diff: @@ -94,7 +94,15 @@ void GLRenderer::render()
  // Setup for transparent geometry
  visitor.setRenderPass(TranslucentPass);
  glEnable(GL_BLEND);
  + // nvidia drivers have a bug where they don't like blending
  + // so on Mac we can use this (they don't use nvidia)
  +#ifdef __APPLE__
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  +#else
  + // Thanks to Giuseppe D'Angelo for a related comment:
  + // https://bugreports.qt.io/browse/QTBUG-36739
  + glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE);
  +#endif
  m_scene.rootNode().accept(visitor);
  // Setup for 3d overlay rendering
  