|-
| style="width:30px;" | [[File:impenet_group_icon.png]]
| style="width:150px;" | '''[[Glossary of EM.Cube's Materials & Physical Object Types#Impenetrable Surface | Impenetrable Surface]]'''
| style="width:250px;" | Ray reflection, ray diffraction
| style="width:250px;" | All solid & surface geometric objects, no curve objects
|-
| style="width:30px;" | [[File:penet_surf_group_icon.png]]
| style="width:150px;" | '''[[Glossary of EM.Cube's Materials & Physical Object Types#Penetrable Surface | Penetrable Surface]]'''
| style="width:250px;" | Ray reflection, ray diffraction, ray transmission through thin walls
| style="width:250px;" | All solid & surface geometric objects, no curve objects
|-
| style="width:30px;" | [[File:terrain_group_icon.png]]
| style="width:150px;" | '''[[Glossary of EM.Cube's Materials & Physical Object Types#Terrain Surface | Terrain Surface]]'''
| style="width:250px;" | Ray reflection, ray diffraction
| style="width:250px;" | All surface geometric objects, no solid or curve objects
|-
| style="width:30px;" | [[File:penet_vol_group_icon.png]]
| style="width:150px;" | '''[[Glossary of EM.Cube's Materials & Physical Object Types#Penetrable Volume | Penetrable Volume]]'''
| style="width:250px;" | Ray reflection, ray diffraction, ray transmission in material media
| style="width:250px;" | All solid geometric objects, no surface or curve objects
|-
| style="width:30px;" | [[File:base_group_icon.png]]
| style="width:150px;" | '''[[Glossary of EM.Cube's Materials & Physical Object Types#Base Location Set | Base Location Set]]'''
| style="width:250px;" | Either ray generation or ray reception
| style="width:250px;" | Only point objects