Hi,
I'm going to show you that sometimes fpsc calculate extra polygon which it shouldn't.
Maybe for a high-end VGA like 5970 which has a 1.45billion of polygon throughput in each second we can see no difference when fpsc is calculating 1000 poly/frame for extra but when you have a low-mid VGA if your engine removes those extra polygons your fps will increase 2-3 and if the level is to large it can be about 6-7 frames and it can help the developers to make their games with more confidence.
And important thing we should know is it's not important if our game's system requirements is really high but the important thing is the coordination between the system requirements and the quality of our game.
Well here is a screen from a simple level with lots of walls:

Then I started the level from where the player marker is.so in the wireframe mode I have to see just a few polygons which the player is facing but unfortunately I can see some of those walls which are other side of the wall.
Here is the wireframe mode:
I think this should be fixed for v1.18 or at least 1.19 because it can be really important to the users.
Have our guns was a mistake!!!
I am PaYaM