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What is a scenegraph

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Sorry for the newbish question, but what exactly is the definition of a scenegraph? thanks -jonnii

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Usually it is just a way to organise your graphical data, this is usually split into three sections :

1. A list of Materials/textures that are then referenced by :

2. Geometry types (eg, meshes, curves, nurbs etc). These may be children of one or more transforms. This allows for instancing of geometry.

3. A hierarchy of transformations (joints etc), these are traversed through the tree to draw the geometry that is parented under them.

If you use an animation/modelling package you can usually see the scenegraph in some sort of tree/hierarchy view....

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