If you have random time offsets for each particle, it will take more time to load all the different files but maybe you can use time offset groups to reduce the IO overhead. Just use a limited range of (non-animated) random integers, scale the result and add it to the current time.
On Wed, Jul 10, 2013 at 4:49 PM, Jens Lindgren <[email protected]>wrote: > I see now that you're taliking about MR *facepalm* > > > On Wed, Jul 10, 2013 at 4:47 PM, Jens Lindgren < > [email protected]> wrote: > >> If you're using Arnold you're better of asking on the SItoA list. >> >> /Jens >> >> >> On Wed, Jul 10, 2013 at 4:39 PM, Alastair Hearsum < >> [email protected]> wrote: >> >>> Here's a funny one: >>> >>> I have a bunch of particles representing people in a crowd. >>> I set an integer attribute called *clip_frame* on these particles. >>> I have hundred image clips and I set the *time source* of the clip to >>> be the attribute that I set in the ice tree rather than *scene_time*. >>> >>> When all these numbers are the same, MR renders as you'd expect straight >>> off the bat pretty quickly. When these are all different numbers I get a >>> helluva slowdown pre-render. It takes an absolute age to get its act >>> together before it starts rendering. >>> >>> Any ideas? >>> >>> Thanks >>> >>> >>> Alastair >>> >>> >>> -- >>> Alastair Hearsum >>> Head of 3d >>> [image: GLASSWORKS] >>> 33/34 Great Pulteney Street >>> London >>> W1F 9NP >>> +44 (0)20 7434 1182 >>> glassworks.co.uk <http://www.glassworks.co.uk/> >>> Glassworks Terms and Conditions of Sale can be found at >>> glassworks.co.uk >>> (Company registered in England with number 04759979. Registered office >>> 25 Harley Street, London, W1G 9BR. VAT registration number: 867290000) >>> Please consider the environment before you print this email. >>> DISCLAIMER: This e-mail and attachments are strictly privileged, >>> private and confidential and are intended solely for the stated >>> recipient(s). Any views or opinions presented are solely those of the >>> author and do not necessarily represent those of the Company. If you are >>> not the intended recipient, be advised that you have received this e-mail >>> in error and that any use, dissemination, forwarding, printing, or copying >>> of this e-mail is strictly prohibited. If this transmission is received in >>> error please kindly return it to the sender and delete this message from >>> your system. >>> >> >> >> >> -- >> Jens Lindgren >> -------------------------- >> Lead Technical Director >> Magoo 3D Studios <http://www.magoo3dstudios.com/> >> > > > > -- > Jens Lindgren > -------------------------- > Lead Technical Director > Magoo 3D Studios <http://www.magoo3dstudios.com/> >
