（´-`）.｡oO(何で仕様書を読まないんだろう・・・)

The commands

　void VertexAttribs{1234}{sfd}vNV(uint index, sizei n, T coords[]);
　void VertexAttribs4ubvNV(uint index, sizei n, GLubyte coords[]);

specify a contiguous set of n vertex attributes. The effect of

　VertexAttribs{1234}{sfd}vNV(index, n, coords)

is the same as the command sequence

　#define NUM k /* where k is 1, 2, 3, or 4 components */
　int i;
　for (i=n-1; i>=0; i--) {
　　VertexAttrib{NUM}{sfd}vNV(i+index, &coords[i*NUM]);
　}

VertexAttribs4ubvNV behaves similarly.

The VertexAttribNV calls equivalent to VertexAttribsNV are issued in
reverse order so that vertex program execution is provoked when index
is zero only after all the other vertex attributes have first been
specified.