INF443: 3D Computer Graphics Project

An OpenCL based Real-time Path Tracer

by Shikang DU and Mingyu ZHANG

Features

• Real-time ray tracing
• Progressive rendering
• Reflection and refraction material
• Movement of objects and interactive camara control.

Compilation

The compilation can be done using CMAKE. Tested in Windows 10 with VS2019.

The library has one external dependency:

• GLFW which can be installed through standard packages in Linux/MacOS (see the provided detailed tutorials).
• OpenCL, above v1.2, which is provided by CUDA or AMD equivalant.
  • WARNING: Intel is not supported. (specially for Linux)
  • If cl.hpp is not provided by your OpenCL SDK, please download it from Khronos website.
  • If FindOpenCL.cmake does not work, please set OpenCL_INCLUDE_DIRS and OpenCL_LIBRARY manually, as showed in CMakeList.txt

Instructions could be found here:

• Command lines to compile in Linux/MacOS
• Detailed tutorials to set up your system and compile on
  • Linux/Ubuntu
  • MacOS
  • Windows

Run

• Put the kerenl files in the right directory
  • CL kernel: ../../../cl_kernels/simple_fbo.cl from the working dir.
  • HDR image: ../../../data/Mans_Outside_2k.hdr from the working dir.
• Execute program
• Indicate OpenCL platform and device
• Try the program, control your camara with keyboard

Reference

• Course description
• Original code
• GPU Ray tracing tutorial
• Ray tracing in one weekend
• Yune