Path tracer

A path tracer written in modern C++.

Details:

• Multithread.
• Uses a BVH to accelerate the ray-scene intersection.
• The only dependency is OpenEXR.
• The input can be a triangulated OBJ + MTL scene.
• Exr enviroment maps.

Weak points:

• Texture maps are not supported.
• Phong BRDF only.
• The project uses std::mt19937 as random number generator.
• No Russian Roulette.