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Releases: RenderKit/openvkl

Open VKL v2.0.1

13 Feb 20:00
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  • Removed ISPC runtime dependency and level zero loader requirement
  • Add DEPENDENTLOADFLAG linker parameter for Windows binaries, restricting DLL loading behavior
  • Superbuild updates to latest versions of dependencies

Open VKL v2.0.0

02 Oct 18:28
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  • This Open VKL release adds support for Intel® Arc™ GPUs, Intel® Data Center
    GPU Flex Series and Intel® Data Center GPU Max Series through SYCL.
    • The SYCL support of Open VKL is in beta phase. Current functionality,
      quality, and GPU performance may not reflect that of the final product.
    • Open VKL CPU support in this release remains at Gold level,
      incorporating the same quality and performance as previous releases.
  • API changes:
    • Handle types are now passed by pointer in the following APIs:
      • vklComputeSample*()
      • vklComputeGradient*()
      • vklGet*IteratorSize*()
      • vklInit*Iterator*()
      • vklIterate*()
    • vklLoadModule() has been removed; compile-time linkage to an Open VKL
      device implementation (cpu or gpu) is now required
    • Added vklInit() API, which must be called to initialize the library
    • VKL_FILTER_[TRILINEAR,TRICUBIC] are renamed to
      VKL_FILTER_[LINEAR,CUBIC]
    • VKLAMRMethod enum is now uint32_t
    • structuredSpherical volumes: the gridSpacing default now results in
      the volume occupying a full sphere
  • Added new examples demonstrating GPU usage: vklExamplesGPU and
    vklTutorialGPU
  • Superbuild updates to latest versions of dependencies

Open VKL v1.3.2

28 Feb 20:15
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  • Move to and require latest versions of RenderKit dependencies: Embree v4.0.0 and rkcommon v1.11.0
  • ARM support: expose ISPC neon-i32x8 target via OPENVKL_ISA_NEON2X CMake option
  • Superbuild updates to latest versions of dependencies

Open VKL v1.3.1

20 Oct 00:07
0f55eeb
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  • Superbuild updates to latest versions of dependencies
  • Note that the update to zlib v1.2.13 remedies CVE-2022-37434

Open VKL v1.3.0

11 May 22:35
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  • Added AVX512 8-wide CPU device mode, enabled via the OPENVKL_ISA_AVX512SKX_8_WIDE CMake option
  • VDB volumes: added support for packed / contiguous data layouts for temporally constant volumes, which can provide improved performance (nodesPackedDense, nodesPackedTile parameters)
  • VDB utility library: added repackNodes flag to toggle usage of packed data layouts
  • Particle volumes: general memory efficiency and performance improvements
  • Superbuild updates to latest versions of dependencies
  • Minimum ISPC version is now v1.18.0

Open VKL v1.2.0

14 Feb 20:58
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  • Added vklSetParam() API function which can set parameters of any supported type
  • Structured regular volumes:
    • Added support for cell-centered data via the cellCentered parameter; vertex-centered remains the default
    • Added support for more general transformations via the indexToObject parameter
    • Added indexOrigin parameter which applies an index-space vec3i translation
  • VDB volumes:
    • Added indexClippingBounds parameter, which can restrict the active voxel bounding box
    • The indexToObject parameter can now be provided as a VKL_AFFINE3F
    • Corrected bounding box computations in InnerNode observer
  • Particle volumes:
    • Now ignoring particles with zero radius
  • VDB utility library: added commit flag (default true) to volume creation methods, allowing apps to set additional parameters before first commit
  • Examples:
    • Added new set of minimal examples, which step through creation of basic volume and isosurface renderers
    • Exposing intervalResolutionHint parameter in vklExamples application
  • Superbuild updates to latest versions of dependencies

Open VKL v1.1.0

01 Nov 18:26
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  • vklExamples improvements: asynchronous rendering, multiple viewports, docking, and more
  • Fixed bug in openvkl_utility_vdb which could lead to crashes when creating VDB volumes with temporally constant tiles
  • Superbuild updates to latest versions of dependencies
  • Minimum rkcommon version is now 1.8.0

Open VKL v1.0.1

23 Sep 15:33
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  • Fixed issue in structuredRegular and vdb interval iterators that could lead to erroneous initial intervals for certain ray inputs
  • Fixed handling of intervalResolutionHint interval iterator context parameter for amr, particle, and unstructured volumes with small numbers of cells / primitives

Open VKL v1.0.0

13 Aug 17:18
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  • The version 1.0 release marks long term API stability (until v2.0)
  • Open VKL can now be built for ARM CPUs that support Neon
  • Iterator API updates:
    • Introducing interval and hit iterator contexts, which hold iterator-specific configuration (eliminates value selector objects)
    • Interval and hit iteration is now supported on any volume attribute
    • Interval iterators now include a time parameter
    • Interval iterators now support the intervalResolutionHint parameter, replacing maxIteratorDepth and elementaryCellIteration
  • Supporting configurable background values; default is now VKL_BACKGROUND_UNDEFINED (NaN) for all volume types
  • vklGetValueRange() now supports all volume attributes
  • Added ISPC-side API bindings for vklGetNumAttributes() and vklGetValueRange()
  • Structured regular volumes:
    • Added support for tricubic filtering
    • More accurate gradient computations respecting filter mode
    • Hit iteration robustness improvements
  • VDB volumes:
    • Interval and hit iteration robustness improvements
    • Corrected interval iterator nominalDeltaT computation for non-normalized ray directions and non-uniform object-space grid spacings
    • Fixed bug which could cause incorrect value range computations for temporally varying volumes
  • vklExamples additions demonstrating:
    • Multi-attribute interval / hit iteration
    • Configurable background values
    • Temporally varying volumes
  • Superbuild updates to latest versions of dependencies
  • Now requiring minimum versions:
    • Embree 3.13.1
    • rkcommon 1.7.0
    • ISPC 1.16.0

Open VKL v0.13.0

14 May 21:09
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  • Driver (now device) API changes:
    • Renamed VKLDriver to VKLDevice and updated associated device setup APIs
    • Use of multiple concurrent devices is now supported; therefore vklNewVolume() and vklNewData() now require a device handle
    • Renamed the ispc_device module and ispc device to cpu_device and cpu, respectively
    • The OPENVKL_CPU_DEVICE_DEFAULT_WIDTH environment variable can now be used to change the cpu device's default SIMD width at run time
  • Added new VKLTemporalFormat enum used for temporally varying volume parameterization
  • VDB volumes:
    • Support for temporally structured and temporally unstructured (TUV) attribute data, which can be used for motion blurred rendering
    • Supporting tricubic filtering via VKL_FILTER_TRICUBIC filter type
    • Added support for half precision float-point (FP16) attribute data via VKL_HALF data type
    • Added a new InnerNode observer and associated utility functions which allows applications to introspect inner nodes of the internal tree structure, including bounding boxes and value ranges
    • Renamed VKL_FORMAT_CONSTANT_ZYX to VKL_FORMAT_DENSE_ZYX
  • Structured regular and spherical volumes:
    • Added support for half precision float-point (FP16) attribute data via VKL_HALF data type
  • Unstructured volumes:
    • Added support for elementary cell iteration via the elementaryCellIteration parameter
    • Robustness improvements for hit iteration
  • AMR volumes:
    • Improved interval iterator implementation, resolving issues with returned interval nominalDeltaT values
    • Interval iterators now support maxIteratorDepth parameter
  • Interval and hit iteration performance improvements when multiple values ranges / values are selected
  • Added new temporal compression utilities which applications can use for processing temporally unstructured attribute data
  • vklExamples additions demonstrating:
    • Motion blurred rendering on temporally structured and temporally unstructured vdb volumes
    • Tricubic filtering on vdb volumes
    • Half-precision floating-point (FP16) support for structuredRegular, structuredSpherical, and vdb volumes
    • Elementary cell interval iteration on unstructured volumes
    • Use of the InnerNode observer on vdb volumes
  • Superbuild updates to:
    • Embree 3.13.0
    • rkcommon 1.6.1
  • Minimum rkcommon version is now 1.6.1