@Rondidon : That rocks Would you put a download link ? I would like to test the level on my good PC and on my EePC also ! To imporve FPS you can find lof ot tricks : Shadows are the thing that takes the most power on games if not very optimised ! For trees : texture projection would be lot lot more fast ! And i don't know if you have distance managed for the grass visibility like in games ?
Have you sprites for distant trees ? big trick used by Far Cry and used today also !