This makes sense. The thing is I can't see any way to get to the velocity attribute from Houdini in to ICE. The v attribute should have been written in the alembic file from Hodini but is clearly not being picked up by Arnold and I can't see it in the explorer either.
Morten > Den 22. december 2016 klokken 12:23 skrev Oscar Juarez > <tridi.animei...@gmail.com>: > > > If its point count varying geometry then your motion blur should come from > a velocity attribute. That error message to my understanding means that > since the points counts don't match between frame intervals motion blur > can't be calculated by Arnold, that's how it's done by default. > > If you have your velocity attribute from Houdini then you should put it in > the PointVelocity attribute on an icetree in the object and in an > arnold_parameters property turn on use ICE PointVelocity for motion blur. > > Cheers > Oscar > > On Thu, Dec 22, 2016 at 12:01 PM, Morten Bartholdy <x...@colorshopvfx.dk> > wrote: > > > I am sure some people on this list have done this, so I need some help > > with a problem: > > > > I am getting odd motionblur results on geometry imported from Houdini as > > alembic, and get this message: > > > > # WARNING : [sitoa] point count mismatch for Model__h_drop.FLUID in the > > shutter interval. Disabling motion blur for the object > > > > It basically looks like motiondata on the mesh is really off, or just > > plain wrong - notice especially how the small droplet on fr 47 is moved > > very far when motionblurred. > > > > Is there a dos and dont's regarding how to import geometry simulated in > > Houdini and render it with Sitoa? We have done it just recently with RBD > > simulation seemingly with the expected motionblur, so this one is totally > > unexpected. > > > > In Houdini it renders fine with Htoa and motionblur using the velocity - > > question is what Sitoa needs in the alembic for this to work as expected? > > > > Thanks > > > > Morten > > ------ > > Softimage Mailing List. > > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com > > with "unsubscribe" in the subject, and reply to confirm. > > > ------ > Softimage Mailing List. > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with > "unsubscribe" in the subject, and reply to confirm. ------ Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
