Is Mental Ray more resource hungry than the likes of Brazil and VRay?
I've seen that effect once before.. when using the frosted reflective floor materials I released for Brazil ages ago. It seemed to get worse the more the box was used while rendering was happening in the background.
Unfortunately I never found out the _real_ reason for this.. maybe it is a setting and not resources, but alas................
Check the size of your car to start with, (against your world measuring unit) Object too large or too small could results like that.
I think this problem happen on earlier version of max most (i.e. max 7), the newer version of max (i.e. 2008 with newer MR) don't seems to have this problem. However, you still can get round the problem because I had that once too, and I managed to change some settings (can't quite remember what now) and it went away.
Also, I will use the MR light with raytrace shadow. It seems work best in MR. The MR with shadow map sometimes gives you horrible artifacts.
Try download this scene and check my settings if you like, because I had that in this scene then I somehow solved it (or reduced it).
Lot of people said that there is no need for rear bumper, it looks already good without it, because i added some stuff under car ( Springs, ''transmission'' and stuf .. )
They are floating in air, lol, i got to work on them.
Well, the idea is like, they are stoped in half way. Dont tell me that you haven't seen it in real life.
Well, thanks about suggestions. I will try !
Wait. Like, you mean, to make same open eye - lights, just with shape of XR's lights are really in game ? Well, thats the same what i thaugh once.
Sorry for my english, lol.