OpenSubdiv/documentation/release_notes.rst

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     Copyright 2013 Pixar

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3.0 Release Notes
-----------------

.. contents::
   :local:
   :backlinks: none

----

Release 3.0.5
=============

Release 3.0.5 is a minor stability release with performance and correctness bug fixes.

**Bug Fixes**
    - The previous release reduced transient memory use during PatchTable construction, but increased the amount of memory consumed by the resulting PatchTable itself, this regression has been fixed.
    - The example Ptex texture sampling code has been fixed to prevent sampling beyond the texels for a face when multisample rasterization is enabled.

Release 3.0.4
=============

Release 3.0.4 is a minor stability release which includes important performance
and bug fixes.

**New Features**
    - Added accessor methods to Far::LimitStencilTable to retrieve limit stencil data including derivative weights
    - Added support for OpenCL event control to Osd::CLVertexBuffer and Osd::CLEvaluator

**Changes**
    - Major reduction in memory use during Far::PatchTable construction for topologies with large numbers of extraordinary features
    - Improved performance for GL and D3D11 tessellation control / hull shader execution when drawing BSpline patches with the single crease patch optimization enabled

**Bug Fixes**
    - Restored support for drawing with fractional tessellation
    - Fixed far_tutorial_6 to refine primvar data only up to the number of levels produced by topological refinement
    - Fixed build warnings and errors reported by Visual Studio 2015

Release 3.0.3
=============

Release 3.0.3 is a minor stability release which includes important performance
and bug fixes.

**New Features**
    - Smooth normal generation tutorial, far_tutorial_8

**Changes**
    - Major performance improvement in PatchTable construction
    - Improved patch approximations for non-manifold features

**Bug Fixes**
    - Fixed double delete in GLSL Compute controller
    - Fixed buffer layout for GLSL Compute kernel
    - Fixed GL buffer leak in Osd::GLPatchTable
    - Fixed out-of-bounds data access for TBB and OMP stencil evaluation
    - Fixed WIN32_LEAN_AND_MEAN typo
    - Fixed Loop-related shader issues glFVarViewer

Release 3.0.2
=============

Release 3.0.2 is a minor release for a specific fix.

**Bug Fixes**
    - Fixed drawing of single crease patches

Release 3.0.1
=============

Release 3.0.1 is a minor release focused on stability and correctness.

**Changes**
    - Added a references section to the documentation, please see `References <references.html>`__
    - Removed references to AddVaryingWithWeight from examples and tutorials
    - Added more regression test shapes
    - Addressed general compiler warnings (e.g. signed vs unsigned comparisons)
    - Addressed compiler warnings in the core libraries reported by GCC's -Wshadow
    - Eased GCC version restriction, earlier requirement for version 4.8 or newer is no longer needed
    - Replaced topology initialization assertions with errors
    - Improved compatibility with ICC
    - Improved descriptive content and formatting of Far error messages
    - Improved build when configured to include no GPU specific code

**Bug Fixes**
    - Fixed handling of unconnected vertices to avoid out of bounds data access
    - Fixed non-zero starting offsets for TbbEvalStencils and OmpEvalStencils
    - Fixed Far::StencilTableFactory::Options::factorizeIntermediateLevels
    - Fixed Far::PatchTablesFactory::Options::generateAllLevels
    - Fixed the behavior of VTX_BOUNDARY_NONE for meshes with bilinear scheme
    - Fixed some template method specializations which produced duplicate definitions
    - Disabled depth buffering when drawing the UI in the example viewers
    - Disabled the fractional tessellation spacing option in example viewers
      since this mode is currently not supported

Release 3.0.0
=============

Release 3.0.0 is a major release with many significant improvements and
changes.  For more information on the following, please see
`Introduction to 3.0 <intro_30.html>`__

**New Features**
    - Faster subdivision using less memory
    - Support for non-manifold topology
    - Face-Varying data specified topologically
    - Elimination of fixed valence tables
    - Single-crease patch for semi-sharp edges
    - Additional irregular patch approximations
    - Introduction of Stencil Tables
    - Faster, simpler GPU kernels
    - Unified adaptive shaders
    - Updated coding style with namespaces
    - More documentation and tutorials

**Bug Fixes**
    - Smooth Face-Varying interpolation around creases


Release 3.0.0 RC2
=================

**New Features**
    - Documentation updates
    - far_tutorial_3 updates for the multiple face-varying channels
    - maya example plugin interpolates a UV channel and a vertex color channel

**Bug Fixes**
    - Fixed a LimitStencilTableFactory bug, which returns an invalid table
    - PatchParam encoding changed to support refinement levels up to 10
    - Added Xinerama link dependency
    - Fixed MSVC 32bit build problem
    - Fixed minor cmake issues
    - Fixed glViewer/farViewer stability bugs


Release 3.0.0 RC1 
=================

**Changes**
    - Far::TopologyRefiner was split into several classes to clarify and focus
      the API.
    - Interpolation of Vertex and Varying primvars in a single pass is no longer
      supported.
    - The Osd layer was largely refactored.

Previous 2.x Release Notes
==========================

`Previous releases <release_notes_2x.html>`_