Cortex 10.4.10.1

Fixes

• FrameRange : Prevented creation of FrameRanges with negative steps
• IECore.dataTypeFromElement : Fixed support for list to Vector conversions

Cortex 10.5.0.0

Features

• MeshAlgo :
  • Added new algorithms for computing mesh normals : calculateUniformNormals(), calculateVertexNormals() and calculateFaceVaryingNormals().
  • Added correspondingFaceVertices() method.

Improvements

• MeshAlgo distributePoints() :
  • Added support for density primitive variable values above 1.
  • Added sampling of arbitrary primitive variables via the new primitiveVariables parameter.
  • Improved accuracy.
  • Improved performance.
• MeshAlgo triangulate() : Improved performance.
• MeshAlgo connectedVertices() : Improved performance.

Fixes

• MeshAlgo distributePoints() :
  • Fixed duplicate points at triangle edges.
  • Fixed handling of points exactly at the density threshold.
• TriangleAlgo :
  • triangleClosestBarycentric() : Fixed numerical precision bug.
  • triangleContainsPoint() : Fixed handling of zero-area triangles.
• PolygonVertexIterator : Fixed to use std::iterator_traits so that raw pointers are supported.

Breaking Changes

• IECoreAppleseed : Removed. With Appleseed's removal from Gaffer 1.3.0.0 Cortex no longer provides IECoreAppleseed.
• Python : Removed support for Python 2.
• Primitive : Changed variableIndexedView() return type from boost::optional to std::optional.
• MeshAlgo distributePoints() :
  • Changed function signature.
  • Bug fixes mean subtle changes to the resulting points.

Cortex 10.4.10.0

Improvements

• IECoreNuke::LiveScene :
  • Adding caching to speed up querying Nuke's GeometryList for large hierarchy
  • Support for ParticleSprite
  • setOp method to avoid re creating LiveScene from scratch

Fixes

• IECoreMaya.SceneShape : Fixed reading of time samples for expanded link locations
  • Traverse the time plug connections to check for a maya global time connection
• CheckedGILRelease : Safe to call if thread doesn't hold the GIL
• IECoreNuke::SceneCacheReader : release GIL during _validate to avoid crash with Caribou
• IECoreNuke::LiveScene :
  • Fix crash when there is not input GeoOp.
  • Fix uninitialized bounds
  • Fix bug with duplicated parents
  • Fix bug when querying children combined between multiple parents

Cortex 10.4.9.1

Fixes

• USDScene : Fixed hash clashes when the same USD file containing instanceable prims was opened a second time. Because USD doesn't assign prototypes deterministically, hashes would be shuffled between prototypes, yielding inconsistencies between the hashes for the two scenes. Hashes are now completely unique from scene-to-scene, so no locations can have clashing hashes.

Cortex 10.4.9.0

Improvements

• USDScene :
  • Improved performance of setNames( includeDescendantSets = True ) substantially for compositions with instanced prims.
  • Improved performance of readSet( includeDescendantSets = True ) substantially for compositions with instanced prims.
  • Improved performance when reading materials from instanced prims.
  • Added loading of UsdGeomCube prims (as MeshPrimitives).
• SceneInterface : Added _copy argument to Python bindings for readAttribute(), readTransform() and readObject(). Pass _copy = False to receive the original constant result directly instead of a mutable copy. Use with care (typically only for debugging and testing)!
• TypedData : Added move constructors.

Fixes

• USDScene :
  • Fixed loading of __cameras, __lights and usd:pointInstancers sets from within instanced prims.
  • Fixed cancellation when reading UsdGeomSphere prims.

Cortex 10.4.8.0

Improvements

• USDScene : Exceptions thrown by child() are now more descriptive.

Fixes

• USDScene : Fixed hasChild() bug which considered prims to be children when child() and childNames() did not.

Cortex 10.4.7.1

Fixes

• USDScene :
  • The UsdShadeMaterialBindingAPI schema is now applied to all prims with material bindings, making the written files compatible with USD_SHADE_MATERIAL_BINDING_API_CHECK=strict mode.
  • Fixed loading of USDGeomXformable's ResetXformStack operator.

Cortex 10.4.7.0

Improvements

• IECoreGL::PointsPrimitive : Added renderUsesGLPoints() method (#1347).
• IECoreGL::CurvesPrimitive : Added renderUsesGLLines() method (#1347).
• StringAlgo : Added concat() and toInt() methods (#1343).
• IECoreScene::ShaderNetworkAlgo (#1343) :
  • Added convertToOSLConventions(), expandSplines() and collapseSplines().
  • Deprecated convertOSLComponentConnections(), expandSplineParameters() and collapseSplineParameters().
• USDScene : Added support for roundtripping connections to SplineData parameters.

Fixes

• IECoreUSD::PrimitiveAlgo (#1346) :
  • Fixed reading of primitives containing primvars:normals. These are now correctly loaded as a primitive variable called N, taking precedence over the UsdGeomPointBased normals attribute.
  • Fixed writing of indexed normals so that the indexing is retained on load. Note that this means that normals are now always written as primvars:normals and never via the UsdGeomPointBased normals attribute.

Cortex 10.4.6.0

Features

• MeshAlgo : Added new MeshSplitter class, for efficient splitting meshes based on uniform primitive variables.
• ImathHash : Added new header that defines std::hash for Imath types.

Improvements

• PointsPrimitive, Primitive : Accelerated bounds computation using tbb::parallel_reduce.
• MeshAlgo : Improved performance of segment().

Fixes

• ImageReader : Fixed compilation with versions of OIIO < 2.4.
• USDScene : Invalid primitive variables are now skipped during loading, with a warning being emitted instead.
• MeshAlgo : Fixed crease handling in deleteFaces().

Build

• Updated CI builds to use GafferHQ/dependencies version 6.0.0, making them suitable for use in Gaffer 1.2.x.x.

Cortex 10.4.5.0

Improvements

• CurvesAlgo, MeshAlgo, PointsAlgo : resamplePrimitiveVariable() now supports all data types when resampling a Constant primitive variable.

Build

• Update Windows release build dependencies to 6.2.1.
• Added compatibility with OpenImageIO 2.4.