OSPRay

This is release v0.8.1 of OSPRay. Changes since v0.8.0:

The volume renderer and volume viewer can now be run MPI parallel (data replicated) using the "--osp:mpi" command line option.
Improved performance of volume grid accelerator generation, reducing load times for large volumes.
The volume renderer and volume viewer now properly handle multiple isosurfaces.
Added small example tutorial demonstrating how to use OSPRay.
Several fixes to support older versions of GCC.
Bug fixes to ospSetRegion() implementation for arbitrarily shaped regions and setting large volumes in a single call.
Bug fix for geometries with invalid bounds; fixes streamline and sphere rendering in some scenes.
Fixed bug in depth buffer generation.

For more information, visit http://www.ospray.org.

Release History

Incorporated early version of a new Qt-based viewer to eventually unify (and replace) the existing simpler GLUT-based viewers.
Added new path tracing renderer (ospray/render/pathtracer), roughly based on the Embree sample path tracer.
Added new features to the volume renderer:
- Gradient shading (lighting)
- Implicit isosurfacing
- Progressive refinement
- Support for regular grids, specified with the "gridOrigin" and "gridSpacing" parameters.
- New "shared_structured_volume" volume type that allows voxel data to be provided by applications through a shared data buffer.
- New API call to set subregions of volume data (ospSetRegion()).
Added a subsampling-mode, enabled with a negative "spp" parameter; the first frame after scene changes is rendered with reduced resolution, increasing interactivity.
Added multi-target ISA support; OSPRay will now select the appropriate ISA at run time.
Added support for the Stanford SEP file format to the seismic module.
Added "--osp:numthreads " command line option to restrict the number of threads OSPRay creates.
Various bug fixes, cleanups and documentation updates throughout the codebase.