{| class="wikitable"
|-
| style="width:150px;" ! scope="col"| Block Type
| style="width:300px;" ! scope="col"| Ray Interaction Type
| style="width:300px;" ! scope="col"| Object Types Allowed
|-
| '''[[Glossary of EM.Cube's Materials & Physical Object Types#Impenetrable Surface | Impenetrable Surface]]'''
| Ray reflection, ray diffraction
| All solid & surface geometric objects, no curve objects
|-
| '''[[Glossary of EM.Cube's Materials & Physical Object Types#Penetrable Surface | Penetrable Surface]]'''
| Ray reflection, ray diffraction, ray transmission through thin walls
| All solid & surface geometric objects, no curve objects
|-
| '''[[Glossary of EM.Cube's Materials & Physical Object Types#Terrain Surface | Terrain Surface]]'''
| Ray reflection, ray diffraction
| All surface geometric objects, no solid or curve objects
|-
| '''[[Glossary of EM.Cube's Materials & Physical Object Types#Penetrable Volume | Penetrable Volume]]'''
| Ray reflection, ray diffraction, ray transmission in material media
| All solid geometric objects, no surface or curve objects
|-
| '''[[Glossary of EM.Cube's Materials & Physical Object Types#Base Location Set | Base Location Set]]'''
| Either ray generation or ray reception
| Only point objects