# Thread: Sandbox and optimizing | Forums

1. I was playing in the sand and I puzzled together a simple building with a bridge using barricade entities. I soon discovered that it sucked up my fps rate like a dry sponge in a puddle of water.

I have very little overlap of the different "pieces" It has a fence and hand rail along the top.

Considering the amount of stuff in the offical maps and the lack of a fps sponge I figure that somehow this stuff is optimized. Anyone have a clue as to what was done.

I played through these scenes in the sand only I did not load up the game and try it in there. Perhaps that is the cause? Dunno.

In-game: Vaco.

2. I was playing in the sand and I puzzled together a simple building with a bridge using barricade entities. I soon discovered that it sucked up my fps rate like a dry sponge in a puddle of water.

I have very little overlap of the different "pieces" It has a fence and hand rail along the top.

Considering the amount of stuff in the offical maps and the lack of a fps sponge I figure that somehow this stuff is optimized. Anyone have a clue as to what was done.

I played through these scenes in the sand only I did not load up the game and try it in there. Perhaps that is the cause? Dunno.

In-game: Vaco.

3. As far as I know, you will need to construct say the outside walls of the building and a door leading inside, and then after the first room inside, you will have to make a vis portal which leads to the rest of the inside of the building.

I think its outlined in the 180 page Sandbox manual.

4. it is not a full building. let me see if i can get a pic of it up.

In-game: Vaco.

5. In-game: Vaco.

6. Do not use BasicEntity or any other entities to build walls, its not efficient,
Use only Brush objects to make static geometry.
Brushes = Static Geometry
Entity = Anything that moves or have some logic.

7. Ps. You can convert BAsicEntity to Brush.
Select object, then choose:
Menu Modify/Convert choose convert to brush.
And Entity will be converted to brush preserving manny settings.
Ps.
Watch for Cast Shadow Map flag in entites, It can make a huge FPS drop, if you use it on many entities, like your walls

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