It seems to be a plugin limitation, since I exported an alembic mesh from Bifrost/maya with vorticity and velocity CAVs, if i import it back, the data is still there. The same doesn't apply when i import the same mesh in Softimage. :(
On Sat, Jul 5, 2014 at 12:52 AM, Jason S <jasonsta...@gmail.com> wrote: > So this is an in-out Alembic plugin for all SI versions? > > > > This is good news, at least Autodesk is doing something good to help > > smooth things out in a future transition. > > Indeed! *and* in future multi-plaform environments! > > Nuno you mentionned CAV's, but would that be a plugin limitation? or an > Alembic limitation? > (CAV's don't seem to be listed here > <http://code.google.com/p/alembic/wiki/Alembic_Geometric_Types> .. or > below) > > Or can Alembic support custom properties? > > Geometric types proposed in Alembic 1.0: Transform > > The AbcGeom Transform class has these attributes: > > - ops - One or more operations of translation, scale, rotation, or 4x4 > Rotation is angle in degrees and axis of rotation. Operations can > optionally indicate a hint (e.g. for Maya to record hinting for pivot > behavior). > - inherits - Does this transform concatenate or ignore the transforms > of its parents > - childBounds - (optional) The bounding volume, including all > subobjects > > Alembic uses a right handed coordinate system. Points > > The AbcGeom Points class has these attributes: > > - P - the positions of each point > - ids - for each P a 64bit unsigned integer that can be used to > identify a Point > - selfBounds - The bounding volume for just this object > - childBounds - The bounding volume, including all subobjects > - velocities - (optional) per point value is in units/second > > Curves > > The AbcGeom Curves class has these attributes: > > - type - linear or cubic (for all curves in object) > - wrap - periodic or non-periodic (for all curves in object) > - P - vertices > - nVertices - for each curve the number of vertics in the curve > - width (optional) - can be constant or varying, expressed as a > diameter > - N - (optional) Normals > - uv - (optional) u-v coordinates > - velocities - (optional) per point value is in units/second > - selfBounds - The bounding volume for just this object > - childBounds - (optional) The bounding volume, including all > subobjects > > PolyMesh > > The Abc PolyMesh class has these attributes: > > - faceCounts - for each face the count of vertices that make up the > face > - faceIndices - for each vertex of each face the slot in P for the > vertex > - P - vertices > - N - (optional) Normals > - uv - (optional) u-v coordinates > - selfBounds - The bounding volume for just this object > - childBounds - (optional) The bounding volume, including all > subobjects > - facesets - (optional) named sets of faces from this mesh > - velocities - (optional) per point value is in units/second > > SubD > > The Abc SubD class has these attributes: > > - faceCounts - for each face, the count of vertices that make up the > face > - faceIndices - for each vertex the slot in P for the vertex's > coordinates > - P - vertex coordinates > - creases - (optional) creased edges > - corners - (optional) vertexes that are corners > - holes - (optional) regions to remove from the surface > - uv - (optional) u-v coordinates > - selfBounds - The bounding volume for just this object > - childBounds - (optional) The bounding volume, including all > subobjects > - facesets - (optional) named sets of faces from this subd > - velocities - (optional) value is in units/second > > FaceSet > > The Abc FaceSet class can be created as part of a SubD or PolyMesh and has > these attributes: > > - faceNumbers - the faces from the SubD or PolyMesh that are in this > faceset > > NuPatch > > The Abc NuPatch class has these attributes: > > - nucvs - the number of CVs in the u direction > - nvcvs - the number of CVs in the v direction > - uorder - the order of the patch in the u direction > - vorder - the order of the patch in the v direction > - uknot - floating point array containing the number of knots in the u > direction > - vknot - floating point array containing the number of knots in the v > direction > - Parameter lists (N, P, uv, arbparams) > - selfBounds - The bounding volume for just this object > - childBounds - (optional) The bounding volume, including all > subobjects > - velocities - (optional) per point value is in units/second > > Additionally, the NURBS objects will contain TrimCurves which may contain > zero or more trim curves. The path is composed of segments in the u > direction and then the v direction. > > Camera > > The Abc Camera class has these attributes: > > - focalLength (mm) > - horizontalAperture/verticalAperture dimensions (cm) > - horizontalFilmOffset/verticalFilmOffset (cm) > - lenseSqueezeRatio: to handle anamorphic lenses, among other things. > (width / height) > - 2D transform stack (translate/scale only) for expressing additional > 2D translate/scale filmback operations > - overscan stored as 4 percentage values for independent > left/right/top/bottom values (to support fractional extension of screen > window) > - non-symmetrical overscan, which we've come across) > - fStop (focal length divided by "effective" lens diameter) > - focusDistance > - shutterOpen/shutterClose: these would be frame-relative values, in > seconds (secs.) > - near/far clipping planes > > Light > > The attributes of the Abc Light class are to be expressed via an attached > AbcMaterial <http://code.google.com/p/alembic/wiki/AbcMaterial>. The > other optional attributes on the light include: > > - childBounds - (optional) The bounding volume, including all > subobjects > - camera - (optional) An Abc Camera. > > > > On 07/04/14 12:13, Nuno Conceicao wrote: > > This is good news, at least Autodesk is doing something good to help > smooth things out in a future transition. > > If I may request little a feature for this plugin, I notice that Alembic > is not importing Vertex Color maps even though they are present on the .abc > file exported from Maya. > Is this something that can be implemented in a future update? > > > > On Fri, Jul 4, 2014 at 12:04 PM, Leendert A. Hartog <hirazib...@live.nl> > wrote: > >> Interesting. >> Would you please consider registering at the si-community, >> so all these goodies get announced there as well? >> >> Greetz >> Leendert >> AKA Hirazi Blue >> >> -- >> >> Leendert A. Hartog AKA Hirazi Blue >> Administrator NOT the owner of si-community.com >> >> > >
