Ray Splitting for DVR

Code and datasets for "Analytic Ray Splitting for Controlled Precision DVR", Sebastian Weiss and Rüdiger Westermann, EuroVis 2021.

Currently supported:

• Iso-surface rendering
  • Trilinear, analytic + numerical
  • Tricubic, numerical
  • Multiple semi-transparent isosurfaces
• Direct Volume Rendering
  • trilinear, piecewise linear transfer function
  • rectangle rule, trapezoid rule, Simpson rule. With fixed number of control points, variable number of control points (analytic bounds), iterative refinement (Simpson only)
  • scale-invariant DVR
• Hybrid of DVR+Iso

Project structure:

• renderer: the library that contains the rendering core (C++, CUDA)
• gui: interactive gui, allows to test all available options (C++, OpenGL)
• bindings: python bindings to the renderer core (C++, Python)
• tests: test cases and evaluation written in C++python. The code that generated the data for the plots in the paper

Data

• volumes: all test volumes used in the plots and images. Note that the synthetic datasets (Marschner Lobb, Sphere, Tube) are are generated in the program, not loaded from external files
• scenes: scene settings to replicate the images in the paper

See the releases for compiled binaries.

Requirements

• CUDA
• OpenGL with GLFW and GLM

Tested with CUDA 11.0 (device architecture 7.5), Windows 10, Visual Studio 2019

Video