FLUSH_VERTICES(ctx, _NEW_ARRAY);
ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_FALSE;
ctx->Array.ArrayObj->_Enabled &= ~_NEW_ARRAY_ATTRIB(index);
FLUSH_VERTICES(ctx, _NEW_ARRAY);
ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_FALSE;
ctx->Array.ArrayObj->_Enabled &= ~_NEW_ARRAY_ATTRIB(index);