Surface 1.5 - Performance boost when overlaying entire screen?

[GreenOnion]

Hi again,

I'm attempting to make my engine use lightning effects, using the Box2D extension and its raycasting. However, when I apply the surface object over the entire screen (1024 * 768) the performance drop is significant - Even without any events or actions tied to it. Should I look into using Overlay Redux or something similar instead - Since it being older and has less elements to it; it might not make as big of an impact? Or am I assuming falsely here? Or should I give up completely on ever achieving something like this with adequate FPS?

Also, is the surface object dependent on the CPU or the GPU?

Thanks in beforehand.

[happygreenfrog]

Overlay Redux is essentially the old version of the Surface object and will almost certainly make things worse. Same with just about any other similar object - The Surface object is the newest one, and almost certainly the fastest.