Yafray glass problem - need help

Hi,

I have a problem with the default glass in yafray. See that thread for more information :

https://blenderartists.org/forum/viewtopic.php?t=50947&highlight=

Thank you

Try the yafray presets for materials, they work very well.

Thought about it, defualt glass as in the preset? You may need to play with the settings a bit to tweak the output. You may want to use a reference shot to help.

Yes, I mean default preset material . Sorry if I was not clear. I use clear glass for window and headlight

Which setting in particular I must change to remove the magnifying glass effect ?

Here is a small blend file with the problem.

http://pages.videotron.com/teragone/seat.zip

Thank you.

The IOR value. Movie to closer to 1 to lower refraction.

Thanks very much, that solve my problem.