Introduction
Making bts style, observation halls is a simple job. It takes little time, especially with prefabricated items.
Due to the highly detailed nature of observation rooms, this tutorial will be provided in images.
Tutorial
Create the floor for your hallway. It should be interesting, with many different paths.
Add the walls (128 units tall)
Texture the floor and walls, then copy the walls, re size to 64 and re texture
Add the light bars around the perimeter. These are 4 units thick.
Create the base for the light. 160x120x16. Cut two wedges on the ends.
Make a hole in the center, 96x96 units.
Select the whole arch, and clip it square. Make it a func_detail.
Texture the light. Make the inside light, white 009 with a scale of 50.
Add a spotlight and a point spotlight. Default variables will work.
Group the light and place in multiple locations.
Cut away the roof where the light goes.
Add the doors. (I grouped a detailed frame and door with a skip.
Copy and paste. Select only the skip, and carve. You may then delete the skip brushes.
Texture the walls where the door is.
Create the detailed fuse sets. Skip brushes will help you align them.
Delete the skip brushes, and change the prop models.
Replace your dev textures for extra optimization.
Final result. (Use expert compile for proper shadows)