PBNJ - Peanut Butter N Jelly

C++ wrapper library on top of OSPRay to simplify scientific volume rendering

Provides the following:

• Data/volume abstraction object
  • we're focusing on volume rendering
  • have one point of contact for data, a Volume object
  • Volume objects hold:
    • DataFile - underlying representation of the loaded data, metadata, statistics, etc. Can read binary and NetCDF files
    • TransferFunction - container for color and opacity maps, attenuation
• Camera abstraction
  • easier movement of camera
  • direct placement of camera with one function, setPosition()
• Renderer abstraction
  • can directly create images (PPM or PNG)
  • can save to given buffer
  • can rendering volumes or isosurfaces
• JSON-based config file
  • communicate with web applications, e.g. Enchiladas/Tapestry

Each PBNJ object (apart from the Renderer at the moment) is designed to be initialized once and reused. This is the base for Enchiladas, as a Volume, Camera, and Renderer can be initialized once. Then a stream of images can be sent to a client.

PBNJ forms the rendering core for the Tapestry project.

The example application simpleVolumeRender demonstrates using PBNJ with a JSON config file.

Documentation is provided and can be built to HTML using Sphinx