[x3d-public] shader question: should X3DVertexAttributeNode name be required?

[Don Brutzman]

spec sayeth:

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31.3.3 X3DVertexAttributeNode
http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/shaders.html#X3DVertexAttributeNode

X3DVertexAttributeNode : X3DGeometricPropertyNode {
   SFNode   [in,out] metadata NULL [X3DMetadataObject]
   SFString []       name     ""
}
The name field describes a name that is mapped to the shading language-specific name for describing per-vertex data. The appropriate shader language annex (see Table 31.2) annex contains language-specific binding information.
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X3DVertexAttributeNode is implemented by FloatVertexAttribute, Matrix3VertexAttribute and Matrix4VertexAttribute nodes.

Wondering, should the name field be required?  Currently it is not.

all the best, Don
-- 
Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman