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! scope="col"| Icon
! scope="col"| Block /Group Type
! scope="col"| Ray Interaction Type
! scope="col"| Object Types Allowed
| style="width:250px;" | Ray reflection, ray diffraction, ray transmission
| style="width:250px;" | All solid & surface geometric objects, no curve objects
| style="width:250px;" | Uses Behaves similar to impenetrable surface and uses thin wall approximation for generating transmitted rays
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| style="width:30px;" | [[File:terrain_group_icon.png]]
| 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:250px;" | Models Used to model a volumetric material block
|-
| style="width:30px;" | [[File:base_group_icon.png]]