| GetMaterialIndex([out, retval] RtDWORD *pdwIndex) | IRdMaterialChunk | |
| GetMaterialInfo([out, retval] IRdMaterialActiveInfo **ppMaterialInfo) | IRdMaterialChunk | |
| GetMaterialItem([in] RtMatClsId &MatClsId,[out, retval] IRsObject **ppMaterial) | IRdMaterialChunk | |
| GetNumMaterialItems([out, retval] RtDWORD *pdwNum) | IRdMaterialChunk | |
| SetMaterialIndex([in] RtDWORD dwIndex) | IRdMaterialChunk | |
| SetMaterialInfo([in] IRdMaterialActiveInfo *pMaterialInfo) | IRdMaterialChunk |
1.5.5