Its a workflow thing, the objective is to have pointcach animation being transfered between an animation scene and a render scene.
If in the render scene the geometry stack needs to be frozen for any reason (could be for many reasons) and the alembic node re-atached later, then it seams that at the moment re-attaching the Alembic ICE node doesn't work properly. If I re-create the ICE tree with the alembic read node attached, it no longer is able to read the abc cache unless I re-import the alembic file again with a new mesh, which can be a bit messy if I need to update changes done on the old mesh (transfering clusters, weightmaps, tangent maps, materials, etc) Instead it would be much simpler just to re-attach an alembic read cache node to the frozen mesh and reconnect to the point cache path which is easily script-able. On Fri, May 9, 2014 at 5:27 AM, Ho Chung Nguyen <[email protected] > wrote: > Can you explain what you need? > > From: [email protected] [mailto: > [email protected]] On Behalf Of Nuno Conceicao > Sent: Thursday, May 08, 2014 5:54 PM > To: [email protected] > Subject: Re: Softimage 2015 Alembic attach to geometry > > Anyone found a way to attach an ICE alembic cache node to a frozen > geometry yet ? > > > On Tue, Apr 22, 2014 at 11:04 AM, Nuno Conceicao < > [email protected]<mailto:[email protected]>> wrote: > Thanks didn't knew it would export subframe, it wasn't so obvious to me > but now it makes sense. > :) > > On Tue, Apr 22, 2014 at 4:06 AM, Ho Chung Nguyen < > [email protected]<mailto:[email protected]>> wrote: > Caching of subframe is supported, the objects need to have property > SimulationSettings and option Cache All Simulation Samples checked. > Pointclouds have this property by default. Polymeshes will have it if you > create a simulated ICETree. > > [cid:[email protected]]<mailto: > [cid:[email protected]]> > > From: [email protected]<mailto: > [email protected]> [mailto: > [email protected]<mailto: > [email protected]>] On Behalf Of Ho Chung Nguyen > Sent: Tuesday, April 22, 2014 10:56 AM > To: [email protected]<mailto:[email protected] > > > Subject: RE: Softimage 2015 Alembic attach to geometry > > Can you attach the abc file so we can look into it? > > From: [email protected]<mailto: > [email protected]> [mailto: > [email protected]<mailto: > [email protected]>] On Behalf Of Nuno Conceicao > Sent: Monday, April 21, 2014 10:28 PM > To: [email protected]<mailto:[email protected] > > > Subject: Re: Softimage 2015 Alembic attach to geometry > > Weirdly enough this is the error I get if I try to connect an ICE Alembic > Cache node: > P:\ThirdParty\Alembic_1.5.1 Absolute paths ? Autodesk!? > > # HDF5-DIAG: Error detected in HDF5 (1.8.9) thread 0: > # #000: P:\ThirdParty\Alembic_1.5.1\source\contrib\hdf5-1.8.9\src\H5F.c > line 806 in H5Fis_hdf5(): unable to open file > # major: Low-level I/O > # minor: Unable to initialize object > # #001: P:\ThirdParty\Alembic_1.5.1\source\contrib\hdf5-1.8.9\src\H5FD.c > line 1101 in H5FD_open(): open failed > # major: Virtual File Layer > # minor: Unable to initialize object > # #002: > P:\ThirdParty\Alembic_1.5.1\source\contrib\hdf5-1.8.9\src\H5FDsec2.c line > 362 in H5FD_sec2_open(): unable to open file: name = > 'T:\120911-PIPELINETOOLS\Simulation\scene_root\cube1\cube1_Take1_1.abc', > errno = 2, error message = 'No such file or directory', flags = 0, o_flags > = 0 > # major: File accessability > # minor: Unable to open file > > > On Mon, Apr 21, 2014 at 11:45 AM, Nuno Conceicao < > [email protected]<mailto:[email protected]><mailto: > [email protected]<mailto:[email protected]>>> wrote: > Just trying the Alembic new feature on SI 2015 and noticed that apparently > there is no attach to geometry function. > Also it has no subframe functionality. > Unless there is a coding way to do it I'm a bit disappointed on this new > feature since its limited to be used for import/export and no point cache > workflow between animation and rendering disciplines. > :( > > > >
