- removed default value for its <SIZE> parameter
- updated all usage to specify a value for <SIZE>
- added explicit element destruction missing from destructor
- corrected comment regarding VLA's being non-standard
The previous change to the gathering of patch points went
a bit too far. Near non-manifold features it is important
to be careful when traversing the faces in a level to avoid
assumptions that are valid only for manifold topology.
Also, removed Vtr::Level::gatherQuadRegularPatchPoints().
This method was added in my previous change, but it is
unsafe to use in the presence of non-manifold topology.
Now a boundary and corner patch remains
aligned with its underlying parametric
orientation. This simplifies both the
gathering of patch vertices and downstream
evaluation of patches.
Added a method to Vtr::Level which gathers
the 16 patch points for a B-spline patch
even if the patch has boundary or corner
edges. The undefined patch vertex index
values along boundary and corner edges are
assigned Vtr::INDEX_INVALID.
In order to simplifiy the process of drawing
B-spline patches with boundary or corner
edges, the Far::PatchTablesFactory will
replace any invalid vertex indices with
a known good value, i.e. the index of the
first patch face vertex.
Single-crease patches are still a slightly
special case, which will be resolved later.
- rename "Regular end cap" to "BSplineBasis end cap"
- revert templating and add EndCapType into PatchTablesFactory::Options.
- make EndCapFactories internal in PatchTablesFactory.
- move end cap stencils into PatchTables, keep them relative to the max level.
- add a utility StencilTablesFactory::AppendEndCapStencilTables to splice and factorize endcap stencil tables.
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.
- new Options for Refine() methods for base face and vertex ordering
- removed ignored/unused "full topology" choice from AdaptiveOptions
- added base face and vertex ordering logic to Refinement
- addition of TopologyRefiner members for component counts and max valence
- refactoring of Level additions to update all new member totals
- addition of GetMaxValence() to TopologyRefiner
- updated PatchTablesFactory to user new GetMaxValence() method
- renaming of "Hole" methods for TopologyRefiner and Vtr::Level
- updated original FVar inspection to deal witn non-manifold vertices
- updated FVar refinement to handle > 2 faces per edge
- couple of fixes to use parent topology when child not present
level before we do any further population from the parent as that may
further modify the child's _maxEdgeFaces. When _maxEdgeFaces is incorrect
we may end up with stack corruption problems when
Far::TopologyRefiner::interpolateChildVertsFromEdges() goes to use this data
to allocate some stack space.
- added edge-face local-indices to Vtr::Level members
- added internal and public access to edge-face local-indices
- updated refinement methods to use and populate edge-face local-indices
- updated refinement methods to be sensitive to degenerate edges
- added Vtr::VALENCE_LIMIT constant for internal use
- updated Vtr::Level topology completion to fail on valence overflow
- simplfied non-manifold edge handling in Vtr::Level topology completion
- updated warnings for all topology construction failures
- added detection and warning when passing non-triangles for Loop
- changed return type of Vtr array empty() to bool
- renamed and adjusted arguments to Vtr gather methods for consistency
- removed lone Vtr gather method that took an explicit offset
- updated usage of revised Vtr gather methods in Far
- fixed warnings redeclaring names of local variables already in use
- 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 new tag for sharp corner, now used in isolation
- split single semi-sharp tag in two for vertex and edge sharpness
- updated tag propagation and all tests of previous semi-sharp tag
- added clear() methods for all tags and simplified initialization
- 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
- change topology refiner to check for edge sharpnesses when selecting faces for isolation
- add face-aggregator for edge tags to Vtr::Level
- fix logic in Far::PatchTablesFactory to correctly tag single-crease patches along infinitely sharp edges
note : this fix is a bit of a cludge - barfowl confirms that the vertex crease tags (VTags) are intended to
carry neighborhood information, which they currently do not. we will revisit this shortly and fix the tags,
which will allow us to simplify the traversal logic when isolating topology features.
fixes#369
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.
- VVarBoundaryInterpolation is now VtxBoundaryInterpolation
- enum prefix change from VVAR to VTX
- generel cleanup / doxyfication
- update of beta / release notes
- add error reporting callback to Vtr::Level::validateTopology
- switch printfs to callback
- add error code enums to Vtr::Level
- route Far::TopologyRefinerFactory::reportInvalidTopology through Vtr::Level callback
note:
- Vtr::Level::validateTopology needs to check creaase tag indices
- topology validation should be client-code driver in TopologyRefinerFactory (turned off in the code at the moment)
- added flag to Sdc MASK interface to interpret "face weights"
- updated Catmark and Bilinear schemes to be aware of new MASK flag
- added subdivision and limit masks for the Loop scheme
- subclassed Vtr::Refinement into QuadRefinement and TriRefinement
- updated tagging of components to be sensitive to applied scheme
- fixed some quad assumptions in FVar refinement to support N-sided
- internally generalized ::TopologyRefiner Interpolate() for <SCHEME>
- reorganized Refinement methods and pruned excessive comments
- removed and added assertions related to Catmark scheme
- added code to support alternate refined vertex ordering
- updated FVarRefinement to be more independent of vertex ordering
- updated Far::TopologyRefiner to fix face-varying ordering dependencies
- fixed a few miscellanous compiler warnings
- 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
- adaptive mode: remove faces tagged as holes from the selection of faces to isolate
- uniform mode: faces tagged as holes are still included in the refinement process,
however they are removed from patch tables
- future improvements: add a 'selective refinement' code path separate from 'uniform refinement'
to handle this case without un-necessary subdivision work.
Catmull-Clark Subdivision Surfaces", Niessner et al, Eurographics 2012.
This change includes;
-topology identification for single-crease patch during adaptive refinement.
-patch array population (similar to boundary)
-sharpness buffer generation
-glsl shader
Eval stuffs will be coming.
- 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()
- added more recognition of Hbr behavior
- refactored smooth boundaries to identify continuous spans
- mark spans as sharp corners if interrupted by internal dart edge
- "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
- removed old alternative to Catmark feature adaptive selection
- removed unused methods from Vtr::SparseSelector
- made use of Level::VTag's new "incomplete" member in both
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.
