What is the difference between Qt OpenGL module and Qt/3D

Question

The 3D examples in the Qt Sdk(under opengl)already can demostrated,but without Qt/3D there.So,what is the difference between Qt OpenGL module and Qt/3D?

Answer 1

From the Qt/3D Reference Documentation:

Qt/3D is a set of extension classes for the Qt OpenGL module to enhance the use of OpenGL in Qt 4.7 and higher.

Porting between desktop OpenGL and embedded OpenGL/ES has traditionally been difficult. Desktop OpenGL, OpenGL/ES 1.1, and OpenGL/ES 2.0 use different function names, and shaders versus fixed function pipelines. Writing a single OpenGL application that runs on all platforms is quite difficult, even for simple objects.

So Qt/3D is an extension to the normal Qt OpenGL module. Browse the links in that page for more details and tutorials/samples.