Heres another render, with a different (and better shaded) car.

except for the 2 tiny screw-ups in the AO under the car, ive got the shader working better, but still not great.

I called it a fake AO catcher, when really its a "Car Undershadow Shader".

when using IDL, obviously the light can get under the car, because there isnt actually a ground there (it is completly transparent, and therefore ignored) so this is my quick-and-dirty work around ;)

the reflections came out extremely well.

the next step of course is to use the custom outputs to seperate the env sphere from the rest of the render so that the car can then be taken and layered onto the original photo.  time to head to the manual :p

TemplarGFX
3D Hobbyist since 1996
I use poser native units

167 Car Materials for Poser