OpenCL Path Tracer

Overview

• Supports Metallic and Lambertian BRDFs
• Uses an OpenCL kernel to render samples in parallel
• Simulates millions of light rays along many bounces, accounting for random reflectance, absorbtion, and more.

Running

1. Build with CMake
2. Run PathTracer --listDevices to list the OpenCL devices available and obtain clPlatformIndex and clDeviceIndex for the selected device.
3. Create a scene configuration file (instructions here).
4. Run PathTracer width height samplesPerPixel clPlatformIndex clDeviceIndex imageOutputFrequency sceneConfigFilename outputImageName where the output image is a PPM file.

Testing

1. Build with CMake
2. Run PathTracer_test