Thanks, Peter, for the explanation. I know I have been a bit fuzzy on the differences since I started using Nuke. Clarity in labeling can be elusive. A longer, more specific label like "Local File Caching for Read Nodes" would make it clearer (to me), but that wouldn't fit on the menu very well, would it? ;^) LOL
Rich Rich Bobo Senior VFX Compositor Mobile: (248) 840-2665 Web: http://richbobo.com/ On May 10, 2012, at 10:17 AM, Peter Crossley wrote: > Hi, > > I think you're confusing two different caching mechanisms here. > > The local file cache is designed to make loading of your source files faster. > Essentially this just makes a local copy of the file you're reading. This has > some overhead the first time you use it (the progress bar you see when you > hit update all), but from then on, whenever you work on that script it will > always load from the local file cache, hence avoiding network traffic, > resulting in faster file loads. > > The playback caching is actually caching the output from the Viewer. This is > different from the local file cache, since you may have ops downstream of > your read node which affect the output. When you play back the first time, > the viewer output (ie the output image resulting from every op in your tree) > is cached to disk every frame. The second time you play back, the viewer > output is read from disk, avoiding potentially expensive re-calculation of > the image every frame. This cache will be used until you change something in > your tree, in which case the output will need to be recalculated and > re-cached. > > Hope that makes things a little clearer, > > Peter. > > On 10/05/2012 14:57, chrissowa wrote: >> >> but why is the viewer caching a second time on disk? >> thats a strange behaviour: >> >> 1. copy files from network to disk (Cache->Update All) >> 2. playing back once (disk to disk transfer?) >> 3. playback is okay >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
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