Is it possible to bake sub-frame samples to have more accurate motion-blur?
On 1 October 2012 13:22, Ivan Busquets <[email protected]> wrote: > Might be splitting hairs, but since this comes up every now and then, I > think it's worth noting that there are some important caveats to using the > local_matrix knob to do that for animated cameras: > > - You lose the ability to tweak the animation afterwards. > > - Inaccurate motionblur. If you bake animated transform knobs into a > single animated matrix, you're effectively losing the ability to > interpolate "curved" paths correctly. The matrix values will interpolate > between frames, but there's no guarantee that the result of that > interpolation will match the transformation you'd get by interpolating the > original rotation/translation/scale values. > > Getting back to the use case of the original post, I would recommend > keeping the two separate transforms when exporting out to Maya. > For one, if you use the "forced local matrix" approach you'll have no easy > way to transfer that to Maya (as in, it won't export correctly when writing > an FBX file, for example). > But also, if you're planning to refine animation later on, it might be > easier to do so on the original transformations. > > > > > On Sun, Sep 30, 2012 at 2:18 PM, Marten Blumen <[email protected]> wrote: > >> Stoked, solved it. Very easy thanks to the exposed World and Local >> Matrix's. >> >> Attached is a verbose tutorial nuke script; all instructions included in >> stickies. Hit me up if it needs more work. thanks! >> >> >> >> >> >> On 29 September 2012 16:08, Marten Blumen <[email protected]> wrote: >> >>> I just retested my test and it only worked on simple setups. Probably >>> need expert equations to make it work properly! >>> >>> On 29 September 2012 15:39, C_Sander >>> <[email protected]>wrote: >>> >>>> ** >>>> I guess now would be a good time to learn expressions. I'll check that >>>> out, thanks! >>>> >>>> _______________________________________________ >>>> 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 >> > > > _______________________________________________ > 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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