Fur Renders Very Slowly

[user_deleted]

I have a maya scene with a teddy bear that i made with nurbs surfaces. It has eight different body parts all with their own fur system. I am new to fur so I am not sure if their is anything else i need to do in order for it to render faster or if it is supposed to take this long. My systems is a 2.66 quad xeon with 2 gigs of ram. I am rendering at a resolution of 1680 by 1050 with hdr lighting and 20000 final gather rays and raytracing. If there is something else i need to do or something i did i need to not do and someone could let me know i would really appreciate it.

[joojaa]

well im not least bit surprised it is slow. Do you have any dea what final gather does? I mean if you do you can immedietely see why this is SLOW.

[user_deleted]

i had a feeling that may be it. what exactly does final gather do then, is there a value that once you exceed it there is no noticeable difference?

[joojaa]

i shots 20000 rays per sample, and makes samples based on position and direction. So a surface that has many crevices gets more sample points and the FUR really has a lot of of theese. So what you end up with is a heavy operation made even heavier.

Secondly every object makes the ray tracing slower/ acceleration bigger because theres more to intersect with rays And fur has quite surprising lits of objects/points to work on.

Dont be supprissed that if a slow operation is made even slower by pushing it a lot of data that it over floods your capacity After all theres no trick in computing too much in fact ist easy, the rick is to compute just enough for the effect needed.

PS: 20000 are you sure its not 2000 becasue 20000 is way too much for ANYTHING even remotely sane.

[user_deleted]

yea im quite sure its 20000 and that was because i honestly didnt really know what it did but now i do thanks a lot.