i'll try using reflections on high and hope my framerates survive and what DX version you using? also what's the track on the screenshots?View attachment 314537 View attachment 314538
you need to wait around 8 laps then you will see what is shown on screenshots. Moreover the intensity of the water spray behind cars depends also whether you drive on dry line or on wet line.
NB: car mod in screenshots is from online league RMS-GT in case someone ask
What I still wonder ... does the track really gets dry after rain finally ? ... I never drove enough time to check that. The maximum drive was 144 minutes with a x10 time acceleration to simulate a 24 hours race without saving and just a little pause at +- the race middle time. ( bad smoker's habit ! ).
And I'm not even sure that GTR2 really offers this possibility ( even with adding the gtr2wx.exe by jtsn )