RayTracer

This is a simple ray tracer based on Peter Shirley's RayTracing in One Weekend series and the book PBRT.

Features currently implemented

• Analytical Sphere, Rectangle and Triangle Geometry
• Mesh loading using assimp
• Simple BVH
• Gradient and Black Sky
• Lambertial, Metal, Dielectric and Emission materials
• Random and Stratified sampling
• Importance sampling materials
• Solid, Checker and Image Textures
• Multithreaded Rendering
• Integrated Intel's OpenImageDenoise

Building

The builds have been tested on Windows with MSVC 14.2 and on Ubuntu 18.04LTS GNU C++ Compiler.

Windows

To build install CMake create a build directory in the root directory of the project. From the build directory execute the following command in cmd:

cmake -DCMAKE_BUILD_TYPE=Release ..

You should now get a file RayTracer.soln in the build directory. Open the file and build.

To test the project, from the root directory of the project run:

Release/RayTracer.exe

or

Release/viewer.exe

Linux

You can use CMake to build on Linux.

mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make

To run (from root directory of project):

./Release/RayTracer

or

./Release/viewer

Dependencies

• assimp for model loading.
• Intel's OpenImageDenoise for image denoising.
• OpenImageDenoise needs TBB as a dependency.
• PCG Random Number Generator by Wenzel Jakob.
• JSON for Modern C++ by Niels Lohmann for scene file format.
• GLFW and GLAD for OpenGL.
• Dear ImGui for Immediate Mode GUI to view the rendered image.

Example Images