CPSC 591 Cherenkov Radiation Ray Marching

University of Calgary Winter 2020: Term Project
Jackson Cougar Wiebe

GitHub: https://github.com/jacksoncougar/wxRayTracer

Example denoised render

Project Dependencies

• GLFW 3 - https://www.glfw.org/ submodule
• OpenglGL - https://www.opengl.org/ implicit
• cxxopts - https://github.com/jarro2783/cxxopts header
• nanogui - https://github.com/wjakob/nanogui submodule
• glad - https://glad.dav1d.de/ header
• stb - https://github.com/nothings/stb header
• assimp - http://assimp.org/ submodule
• ioid - https://openimagedenoise.github.io/ offline

Build instructions (CMake)

IMPORTANT: Clone the project recursively; some dependancies are via git submodules.

git clone https://github.com/jacksoncougar/wxRayTracer.git --recursive

Building from the command line:

mkdir build
cd build
cmake ../
cmake --build . --target tracer

Synopsis

  Tracer [EMISSIVE_MESH_FILENAME] [CHAMBER_MESH_FILENAME] [OPTION...]

      --batch                Closes the program when the render finishes
  -p, --camera-position arg  The position of the camera in the scene
                             (default: 0.000000 0.000000 0.000000)
  -t, --target arg           The target to point the camera towards (default:
                             0.000000 0.000000 0.000000)
  -c, --colour arg           The colour of the glow (default: 0.007843
                             0.796078 0.835294)
      --gather-surface       Enables surface radiosity gathering (default: 1)
  -e, --extinction arg       The amount of light that is extinguished per
                             unit of distance (default: 0.080000)
  -f, --falloff arg          Controls the distance at which light is emitted
                             in the volume (default: 2.500000)
  -a, --absorption arg       The amount of light that is emitted per unit of
                             distance (default: 0.200000)
  -s, --scattering arg       The amount of light that in-scatters per unit of
                             distance (default: 0.100000)
  -i, --intensity arg        The brightness of the light that is emitted in
                             the volume (default: 100.000000)
      --p0 arg               Depth 0 ray marching parameters (default: 1 1 8
                             8 8)
      --p1 arg               Depth 1 ray marching parameters (default: 1 1 0
                             2 0)
      --p2 arg               Depth 2 ray marching parameters (default: 1 1 0
                             0 0)
  -h, --help                 Print usage

Example

tracer assets/ply/reactor2.ply assets/ply/chamber.ply

Controls

ESC

Hides the GUI elements

Statement of code reuse

I am using:

• GLFW 3 - https://www.glfw.org/
• OpenglGL - https://www.opengl.org/
• cxxopts - https://github.com/jarro2783/cxxopts
• nanogui - https://github.com/wjakob/nanogui
• glad - https://glad.dav1d.de/
• stb - https://github.com/nothings/stb
• assimp - http://assimp.org/

Where applicable I have tried to include in-code citations.