Got tonemapping working!
To not say too much before i talk to the devs; i have made changes to hdr.cs, the postfxmanager files BUT also another file which is the one i think did the trick. Im not gonna state which one it is cause theres some code in it that looks like WIP or was left when it didnt function. But i can say this, its the file that combines
bloom and tonemapping.
Bloom is still not looking as it does in T3d and the Beamng Techdemo (which uses older T3D stuff) so somethings slightly off there but im happy atm and might leave it there
About the code above; Beamng has its own gamma so that number (0.01 0.01) is probably due to that.