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OSPRay v2.0.0-alpha
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@jeffamstutz jeffamstutz released this 01 Oct 03:33
· 1541 commits to master since this release
v2.0.0-alpha
9527f27

  • New major revision of OSPRay brings API breaking improvements over
    v1.x. See doc/ospray2_porting_guide.md for a deeper description of
    migrating from v1.x to v2.0 and doc/api.md for the latest API
    documentation

    • ospRenderFrame now takes all participating objects as
      function parameters instead of setting some as renderer params
    • ospRenderFrame is now asynchronous, where the task is managed
      through a returned OSPFuture handle
    • The heirarchy of objets in a scene are now more granular to
      aid in scene construction flexibility and reduce potential
      object duplication
    • Type-specific parameter setting functions have been consolidated
      into a single ospSetParam API call
    • C++ wrappers found in ospray_cpp.h now automatically track
      handle lifetimes, therefore applications using them do not need
      to use ospRelease (or the new ospRetain) with them: see
      usage example in apps/tutorials/ospTutorial.cpp
    • Unused parameters are reported as status messages when
      logLevel is >= 1 (most easily set by enabling OSPRay debug on
      initialization)

  • New utility library which adds functions to help with new API
    migration and reduction of boilerplate code

    • Use ospray_util.h to access these additional functions
    • All utility functions are implemented in terms of the core API
      found in ospray.h, therefore they are compatible with any
      device backend

  • Introduction of new Intel® Open Volume Kernel Library (Open VKL)
    for greatly enhanced volume sampling and rendering features and
    performance

  • Added direct support for Intel® Open Image Denoise as an optional
    module, which adds a denoiser type to ospNewImageOperation

  • New CMake superbuild available to build both OSPRay's dependencies
    and OSPRay itself

    • Found in scripts/superbuild
    • See documentation for more details and example usage

  • The ospcommon library now lives as a stand alone repository and
    is required to build OSPRay

  • New support for volumes in the pathtracer

    • Several parameters are available for performance/quality
      trade-offs for both photo-realistic and scientific visualization
      use cases

  • Simplification of the scivis renderer

    • Fixed AO lighting and simple ray marched volume rendering for
      ease of use and performance

  • New API call for querying the bounds of objects (OSPWorld,
    OSPInstance, and OSPGroup)

  • Lights now exist as a parameter to the world instead of the renderer

  • Removal of slices geometry. Instead, any geometry with volume
    texture can be used for slicing (see tutorial
    ospTutorialStructuredVolume for example)

  • Introduction of new boxes geometry type

  • Expansion of information returned by ospPick

  • Addition of API to query version information at runtime

  • Known issues:

    • Open VKL must be built with a compatible set of ISAs with OSPRay
      due to a known issue with VKL iterator types. This is easiest
      to address by using OSPRAY_BUILD_ISA and OPENVKL_BUILD_ISA
      with the ISA of the target machine. This will be addressed for
      the official v2.0 release.
    • The old variant of ospNewData was temporarily retained in
      ospray_util.h for C++ applications and will be removed for the
      official v2.0 release
    • ISPC v1.11.0 and Embree v3.6.0 are both incompatible with OSPRay
      and should be avoided (OSPRay should catch this during CMake
      configure)
    • This is a source-only release, binaries will be made available
      for the official v2.0.0 release
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