I got it all working and for some reason PCookingParams.buildGPUData = true;
was only accepted in PhysXCooking.cpp as i had thought it belonged in another location…whoops! now all i have to do is reinstall my graphics driver because of some other unrelated problem with nvidia display driver. hopefully someone else in the future can see this. if you need any help with doing this i will be able to help you if you prefer to accelerate rigid bodies on your Nvidia graphics card!