What relationship is it between opengl performer and freeglut?

Which is stronger or which can instead of which at the opengl?

OpenGL Performer? This ancient, commercial scene-graph library?

It seems to me that they do entirely different things. FreeGLUT only covers the initialization, maintenance of, and interface to an OpenGL window. Performer is a scene graph, which is all about dealing with rendering objects and such. Neither is “stronger”, since they do two different things. Performer may have some kind of window-creation interface, but I didn’t investigate it that deeply.

[QUOTE=Alfonse Reinheart;1265889]OpenGL Performer? This ancient, commercial scene-graph library?

It seems to me that they do entirely different things. FreeGLUT only covers the initialization, maintenance of, and interface to an OpenGL window. Performer is a scene graph, which is all about dealing with rendering objects and such. Neither is “stronger”, since they do two different things. Performer may have some kind of window-creation interface, but I didn’t investigate it that deeply.[/QUOTE]
they say lopgl performer is also a lib like glu* etc.