Vrayfur problem

[provise]

Hello everybody,

I have a problem with vrayfur,at our office our unit setup is in meters so when i am making a carpet or grass with vrayfur on a plane. i have to put the length size and the thickness to a size of for example 0,04 (4 centimeters) but then i have to make so many strands to get a full plane of grass that the rendertime increases dramaticly, from a render what took for about 3 hour to render with out vrayfur, ends up rendering for like 20 hours with vrayfur.

Is that normal or am i missing something.

kind regards,

Robert

[sv]

how many subdivs on the plane?
As the fur is dynamic, if you have a plane of say 3m x 1m but with 1x1 poly, vray will have to work a lot harder to subdivide the plane to add it's fur - if the plane was 3m x 1m but say 20x30 segments, it will work better.