cbuffer g_GlobalConstantBufferObject : register (b1)
{
  float4x4 matMV   : packoffset(c0);   // model view matrix
  float4x4 matMVP  : packoffset(c4);   // model view projection matrix
  float4x4 matMtoW : packoffset(c8);   // model to worldspace matrix
  float4   LMtoSM  : packoffset(c12);  // lightmap to shadowmap: xy:scale, zw:ofs
  float4   MUVtoLM : packoffset(c13);  // model UV to lightmap
}
