As you all know I speend alot of time creating landscapes.  Trying to speed
up grass has been one of my major preoccupations.  After using an inc file
which was a union of triangles and getting fed up with the time it took to
parse, I changed the union to mesh. To my astonishment the file parsed in
less than a second.  At this point I took a look at my grass file to see if
I could speed it up - lots of work. Coincidentaly Gilles put up his new web
site and whilst enjoying this I came across his grass file and  Gilles had
got there first.  His file outputs a grass patch as a mesh and to give you
some idea of of it's capabilities and to pass on the lesson I have learned I
rendered this picture.

Here's some stats:
 Peak Memory 1323748 bytes
 Parse Time 33 secs
 trace time 4 min 15 secs

Number of Grass blades ............................4,297,500 !!!!

Wow

Mick

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