Thanks for the tips, Agent Smith !
I use low wireframe resolution, and the display as box option : very useful
I'll try to reduce at about 50% all the things
there will be no very little objects in the scene, so…

let's reduce !

bye !
Amigafreak :-)
p.s. measures units : inch, feet, meters "what a mess !!!"

Imac G5 - 1,8 Ghz - 1,25 Go ram - bryce 5 - Poser 5
Imac G3 - 500 Mhz - 384 Mo ram - bryce 5 (don't laugh, it works !)