Summary description for MaterialSerializer.
		public virtual void WriteInstance( MaterialSerializer ser, SubRenderState subRenderState,
		                                   TextureUnitState srcTextureUnit, TextureUnitState dstTextureUnit )
		{
		}
		public virtual void WriteInstance( MaterialSerializer ser, SubRenderState subRenderState, Pass srcPass,
		                                   Pass dstPass )
		{
		}