Vulkan monte carlo path tracer

Initially a CPU path tracer based on Ray Tracing in One Weekend

Rewritten using Vulkan API compute shaders to make it lighting fast.

Features

• Vulkan compute shader implementation
• Bindless rendering API over Vulkan
• Support different window systems (Win32, xcb)
• Realtime rendering
• Multisampling (temporal accumulation)

• GLTF 2.0 scenes

• BRDF

• Importance sampling

• Camera controller

• ImGui backend
• Debugging window
• Tonemapping
• BVH based on SAH with debugging tools (Graphviz exporter, visual debugger)

TODO

• Vulkan RT