v0.10.1

Changes in this release

• Fix GPU memory leaking array data in some cases

Full Changelog: v0.10.0...v0.10.1

v0.10.0

Changes in this release

• Update to latest ANARI SDK v0.12.0
• Added new RTX device-specific extensions (see readme for more information):
  • VISRTX_ARRAY_CUDA: Permits using CUDA device pointers in shared ANARI arrays
    • Currently only tested with spatial fields, but more robust support will come in future releases as-needed
  • VISRTX_INSTANCE_ATTRIBUTES: Uniform attributes can be set on ANARIInstance objects, which overrides any found on relevant geometries below it in the scene hierarchy
  • VISRTX_SPATIAL_FIELD_NANOVDB: nanovdb is now an available ANARISpatialField subtype
  • (optionally built) VISRTX_MATERIAL_MDL: preliminary support for using MDL materials via the mdl ANARIMaterial subtype
    • Note this is still very experimental and is expected to improve in future releases
• Other RTX device improvements and bug fixes:
  • Added support for KHR_INSTANCE_TRANSFORM_ARRAY
  • Added support for KHR_SAMPLER_IMAGE3D
  • Fixes in the RTX device for race conditions when using the device in parallel from multiple threads
  • Fixed incorrect depth buffer values in some cases
• Introduce new sample application (TSD) infrastructure for more complete/robust ANARI application testing
  • Can be built alongside the devices (enabled with VISRTX_BUILD_TSD=ON in CMake), or building as a stand alone project
  • Existing example applications are now deprecated in favor of TSD
  • TSD is considered a generic ANARI framework and is expected to be usable with any ANARI device
  • TSD is currently only built as a static library and is not an installable component, external projects that want to build on it are expected to add_subdirectory() the tsd/ folder. Making TSD installable may come in a future release if enough demand for it exists.
  • While TSD is mostly undocumented, future releases will slowly add more documentation as architecture/design stabilizes

New Contributors

• @tarcila made their first contribution in #78

Full Changelog: v0.9.0...v0.10.0

v0.9.0

Changes in this release

• Update to latest ANARI SDK v0.10.0
• RTX device improvements:
  • Allow serial/parallel shader compilation as a build option
  • Minimize BLAS (ANARIGroup) rebuilds when they are not necessary
  • Support opacity in dpt renderer
  • Tweaked ao + raycast renderers to be more unique compared to the default renderer
  • Fix missing DoF in reported extensions
  • Various minor performance improvements
• GL device improvements:
  • Add experimental support for compressed textures:
    • EXT_SAMPLER_COMPRESSED_IMAGE2D
    • EXT_SAMPLER_COMPRESSED_FORMAT_ATC
    • EXT_SAMPLER_COMPRESSED_FORMAT_BC123
    • EXT_SAMPLER_COMPRESSED_FORMAT_BC45
    • EXT_SAMPLER_COMPRESSED_FORMAT_BC67
    • EXT_SAMPLER_COMPRESSED_FORMAT_ETC
    • EXT_SAMPLER_COMPRESSED_FORMAT_EAC
  • Fix various bugs

Full Changelog: v0.8.0...v0.9.0

v0.8.0

Changes in this release

• Update to latest ANARI SDK v0.9.0
• RTX device improvements:
  • Added new faceVarying attribute extension for triangle geometry (VISRTX_TRIANGLE_FACE_VARYING_ATTRIBUTES)
  • Added support for uniform geometry attributes for all geometry subtypes (VISRTX_UNIFORM_ATTRIBUTES)
  • Added support for KHR_FRAME_COMPLETION_CALLBACK
  • Added support depth of field parameters on perspective cameras
  • Added progressive shadow/AO attenuation for objects with transparent
  • Added basic support for metallic and roughness parameters on the physicallyBased material
  • Removed dependency on bin2c for embedding OptiX PTX
  • Added experimental support for triangle back face culling as a renderer and/or geometry parameter
  • Fixed incorrect parameter name used for the spatial field on transferFunction1D volumes (field -> value)
  • Fixed crash when OptiX fails to initialize successfully
• GL device improvements:
  • Fixed bugs when building + running on Windows
  • Fixed bug where back face culling potentially caused nothing to be drawn
• Allow older versions of CMake (new minimum is 3.17)

Full Changelog: v0.7.1...v0.8.0

v0.7.1

Changes in this release

• Use CMAKE_CUDA_ARCHITECTURES if set explicitly
• Fix assert() incorrectly triggering in debug builds
• Workaround issue embedding PTX in some cases

Full Changelog: v0.7.0...v0.7.1

v0.7.0

Changes in this release

• Added RTX device support for additional extensions:
  • KHR_FRAME_CHANNEL_PRIMITIVE_ID
  • KHR_FRAME_CHANNEL_OBJECT_ID
  • KHR_FRAME_CHANNEL_INSTANCE_ID
  • KHR_DEVICE_SYNCHRONIZATION
  • KHR_FRAME_ACCUMULATION (already present, but extension query was missing)
• RTX device rendering/ANARI correctness fixes:
  • Fixed incorrect use of in/out sampler transforms
  • Fixed incorrect sphere shadows when instanced
  • Updated missing/incorrect parameters
  • Improved cylinder/cone intersectors
  • Fixed incorrect sampling position for structuredRegular fields
  • Fixed crash when no GPU is available to be used during initialization
• RTX device runtime robustness fixes:
  • Fixed crash in RTX device under certain conditions when ANARIGroup contents were changed
  • Multi-threaded OptiX module creation on Linux to speed up device initialization
  • Use new helium array implementation from ANARI-SDK in RTX device
• GL device improvements:
  • Updated queries to match latest SDK JSONs
  • Compile fixes for Windows
  • Add support for linear depth per-ANARI specification
  • Better GLES compatibility
• CMake fixes:
  • Invoke visrtxCompileShaders after installation to ensure the right version is precompiled
  • Misc robustness improvements
• Various minor viewer improvements

Accepted Pull Requests

• Normalize light dir by @aumuell in #57
• cmake: fix exporting with VISRTX_USE_SOVERSION by @mathstuf in #58
• Cmake fixes by @mathstuf in #59
• implement prim/obj/inst ID buffers in visrtx by @jeffamstutz in #65
• parallelize OptiX module creation by @jeffamstutz in #66

New Contributors

• @aumuell made their first contribution in #57

Full Changelog: v0.6.1...v0.7.0

v0.6.1

Changes in this release:

• Windows compatibility fixes for visgl
• Fix visrtx crash when releasing the device without it being initialized
• Relax ANARI-SDK version EXACT requirement

v0.6.0

Changes in this release:

• Update to latest ANARI SDK v0.7.0
• New OpenGL based implementation (visgl), built using VISRTX_BUILD_GL_DEVICE=ON
• Added support for sampler in/out transforms
• Fixes for building with OptiX 7.7
• Many extensions synchronized with the v1.0 ANARI specification
• Implemented image backgrounds for all renderers
• Improved robustness for objects that are unknown by emitting better warnings
• Removed custom color map sampler extension in favor of using image1D samplers with transforms (can get equivalent results)
• Denoising is now enabled as a renderer parameter instead of a frame parameter

v0.5.0

Changes in this release:

• Update to latest ANARI SDK v0.3.0
• Added support for curve geometry subtype
• Added support image1D sampler subtype
• Added support for primitive.index on sphere geometry
• Added support for missing array types for image samplers
• Added volume scattering in dpt renderer
• Added tool (visrtxCompileShaders) for precompiling OptiX shaders offline
• Improved robustness around object subtypes unknown to VisRTX
• Improved object leak warnings on device release
• Moved ambient lighting from being a light subtype into renderer parameters
• Fix incorrect handling of managed arrays of objects
• Fix performance bug with rays repeatedly not exiting volumes

v0.4.0

Changes in this release:

• Update to latest ANARI SDK v0.2.0
• All object info queries are now implemented
• Implement VISRTX_ARRAY1D_DYNAMIC_REGION extension for 1D arrays
• VisRTX now provides an installed header for custom VisRTX functionality
• See tutorial app as an example
• Fix incorrect warning about different sized arrays for indexed triangles
• Fix missing BLAS updates occuring in certain cases
• Memory offload optimizations for arrays that are about to go out of scope
• Improved texture loading for OBJ scenes in sample viewer app