This change moves all gregory patch generation from Far::PatchTablesFactory
so that we can construct patch tables without stencil tables as well as client
can chose any end patch strategies (we have 3 options for now: legacy 2.x style
gregory patch, gregory basis patch and experimental regular patch approximation).
Also Far::EndCapGregoryBasisPatchFactory provides index mapping from patch index
to vtr face index, which can be used for single gregory patch evaluation on top
of refined points, without involving heavier stencil tables generation.
- extend Far::PatchTables data structures & interfaces to store requisite
information for channels of face-varying bi-cubic patches
- implement gather function in Far::PatchTablesFactory to populate face-varying
channels with adaptive patches
- extend accessor interface in Vtr::Level
- propagate code fall-out throughout OpenSubdiv code base, examples & tutorials
- extend vtrViewer code to visualize tessellated bi-cubic face-varying patches
- added Vtr::FVarLevel method to resolve correct index in level 0 case
- updated tag retrieval methods that used face-value array as input
- changed signatures to accept face-verts when needed and updated usage
- added methods to FVarLevel to combine FVar tags with vertex tags
- use composite of combined tag to find FVar features needing isolation
- added more tagging related to the "linear borders" interpolation case
- added FVar channel consideration to TopologyRefiner's feature selection
- added more simple access methods to FVarLevel
- added _xordinary tag to FVarLevel::ValueTag; initialize and refine
- added composite tag method for FVarLevel::ValueTag similar to Level::VTag
- parameterize FVar topology initialization with regular valence
Const' declared instances of Vtr::Array do not protect the pointer held
privately by the class properly. In order to force the compiler to
protect this pointer, we removed all non-const accessors from Vtr::Array
(now renamed Vtr::ConstArray) and moved them to a child class (Vtr::Array),
which requires const_cast<> operators internally to allow access.
The change & renaming is then propagated to all internal dependencies.
- added array accessors to properties of vertex values in vtr::FVarLevel
- updated construction of base level face-varying topology
- simplified population of face-varying properties in vtr::FVarRefinement
- updated Far::TopologyRefiner::Interpolate/LimitFaceVarying() accordingly
- added ValueTag indicating sharpness dependency on another value
- updated base level tagging to identify dependent semi-sharp values
- updated refinement to consider dependency when reassessing semi-sharpness
- updated interpolation to use dependent fractional weight when necessary
- redefined and documented Sdc::Options::FVarLinearInterpolation
- included "corners only" mode not possible with Hbr
- updated usage within Vtr::FVarLevel
- added semi-sharp tag to FVar ValueTags and applied in base FVarLevel
- re-assess status of tagged semi-sharp values in each FVarRefinement
- detect and apply fractional weighting in InterpolateFaceVarying()
- "propagate corners" added as new enumeration to Sdc::Options
- topology tags within FVar channel initialized and propagated
- face-varying Interpolate() method updated to deal with creases
Sync'ing the 'dev' branch with the 'feature_3.0dev' branch at commit 68c6d11fc36761ae1a5e6cdc3457be16f2e9704a
The branch 'feature_3.0dev' is now locked and preserved for historical purposes.
