|-
! 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]]
| ReflectionRay reflection, ray diffraction
| All solid & surface geometric objects, no curve objects
|-
| [[Glossary of EM.Cube's Materials & Physical Object Types#Penetrable Surface | Penetrable Surface]]
| ReflectionRay reflection, ray diffraction, thin-wall ray transmissionthrough thin walls
| All solid & surface geometric objects, no curve objects
|-
| [[Glossary of EM.Cube's Materials & Physical Object Types#Terrain Surface | Terrain Surface]]
| ReflectionRay 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]]
| ReflectionRay reflection, ray diffraction, material medium ray transmissionin 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]]
| Ray genertaion Either ray generation or ray reception
| Only point objects
|}