</table>
The template created a blue point object called "Point_TX1" under the base location point radiators group "Base_TX1" as well as an orange point array called "Array_RX1" under the base location point radiators group "Base_RX1". A default vertically polarized half-wave dipole transmitter called "TX1" and an isotropic receiver grid called "RX1" were also created associated with "Base_TX1" and "Base_RX1", respectively. All of these were done automatically by the New Project dialog. Also note that a large number of receivers fall inside the two buildings. If a transmitter falls inside an impenetrable building, its rays will not reach any receivers outside the building. Similarly, if a receiver is located inside an impenetrable building, it will not receive any rays, and therefore, it will have a zero total received power.
{{Note|If you hover your mouse over the surface of an object, its faces become translucent, and you see its inside.}}
<table>
<tr>
<td> [[Image:TER L3 Rays1.png|thumb|left|600px720px|Visualizing the rays received by the receiver.]] </td>
</tr>
</table>
<table>
<tr>
<td> [[Image:TER L3 MatProp2TER_L3_MatProp2A.png|thumb|left|360px|Defining a penetrable surface group in EM.Terrano's default Penetrable Surface dialog.]] </td>
</tr>
</table>
<table>
<tr>
<td> [[Image:TER_L3_MatLayer_1stTER L3 MatProp2.png|thumb|left|480px360px|EM.Terrano's Edit Layer default Penetrable Surface dialog.]] </td>
</tr>
</table>
{{Note|All the objects belonging to the same penetrable surface group have the same wall thickness.}}
To change the material properties of the walls, select the current item in the table and click the {{key|Add/Edit}} button of the dialog. A new Edit Layer dialog opens up, showing the material properties of brick. Click the {{key|Material}} button to open up EM.Cube's Materials Dialog. You want to create a stone building. Typing "S" on your keyboard will take you down the table where the material names start with the letter S. Select "Stone" from the table and click {{key|OK}} to return to the Edit Layer dialog. You will see the new stone properties fill all the fields. Change the value of '''Wall Thickness''' to 0.2m. Close this dialog to return to the Penetrable Surface dialog.
<table>
<tr>
<td> [[Image:TER_L3_MatProp2ATER_L3_MatLayer_1st.png|thumb|left|480px|Defining a penetrable surface group in EM.Terrano's Edit Layer dialog.]] </td>
</tr>
</table>
<table>
<tr>
<td> [[Image:TER L3 MatLayerMatList.png|thumb|left|480px720px|EM.TerranoCube's Edit Layer dialogmateirals list.]] </td>
</tr>
</table>
{{Note|All the objects belonging to the same penetrable surface group have the same wall thickness.}}
To change the material properties of the walls, select the current item in the table and click the {{key|Add/Edit}} button of the dialog. A new Edit Layer dialog opens up, showing the material properties of brick. Click the {{key|Material}} button to open up EM.Cube's Materials Dialog. You want to create a stone building. Typing "S" on your keyboard will take you down the table where the material names start with the letter S. Select "Stone" from the table and click {{key|OK}} to return to the Edit Layer dialog. You will see the new stone properties fill all the fields. Change the value of '''Wall Thickness''' to 0.2m. Close this dialog to return to the Penetrable Surface dialog.
<table>
<tr>
<td> [[Image:TER L3 MatListMatLayer.png|thumb|left|720px480px|EM.CubeTerrano's mateirals listEdit Layer dialog.]] </td>
</tr>
</table>
<table>
<tr>
<td> [[Image:TER_L3_Freeze.png|thumb|480pxleft|360px|Freezing an individual object in EM.Terrano.]] </td>
</tr>
<tr>