Like in the title, I'm experiencing a huge performance drop with not sot much on the display. I'm testing on an iPad 1
So basicaly I'm doing a shooter with a top down view.
I tested also the game just by changing the gametype (so my code is not used) and I still have the issue.
Ok so in the game I have no background at the moment but each time I try to add something there is a huge drop of fps when it's been displayed.
For example I made a simple shader with only diffuse, nothing else but it's a quite large BSP. When I'm over it the fps are low, but when I move away where there is no bsp just my ship then the fps are just fine.
Another test I made is to make a smaller BSP (like 5/6 times the ship), if there is the default shader no problem, but when I put a shader with some transparency (additive or alphacomposite) I have the fps drop.
I also made some test just by exporting a plane out of max and give him a material in additive but I had the same issue. I think as soon as it's "big" I have the fps drop.
Previously I made an app where we were able to visit a loft and I had a lot more textures and assets but everything was in a quite small world.
I started the scene with a default scene provided with udk but removed the fog, the skydome and some other feature to have the less possible activated.
Anybody have an idea what I might do wrong?