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OpenGL Bindings only give direct API access to the OpenGL API/library. OpenGL is a low level API for rendering primitives in particular ways (see [OpenGL]). OpenGL requires you to manipulate its state as rendering progresses, e.g. binding to textures and change rendering attributes.
Scenegraphs are more abstract allowing the construction of trees or graphs of nodes that represent the scene. They often included functionality to bring common model formats into the scene. They generally provide an implementation of scene culling based on the graph. Scenegraphs generally manage the underlying rendering state allowing you to assign textures and rendering attributes to the nodes in the graph and applying these state changes on rendering.
-- Main.kevglass - 27 Oct 2005 |