max 中对map 通道的拷贝 (首先要具有多通道)
fn CopyChnel nodep mapone maptwo = ( ChannelInfo.CopyChannel nodep 3 mapone ChannelInfo.PasteChannel nodep 3 maptwo convertToMesh nodep )
fn CopyChnel nodep mapone maptwo = ( ChannelInfo.CopyChannel nodep 3 mapone ChannelInfo.PasteChannel nodep 3 maptwo convertToMesh nodep )