Placeholder until I make a proper README

Features

• Hardware ray tracing via VK_KHR_ray_tracing_pipeline / VK_KHR_acceleration_structure
• Monte Carlo path tracing with progressive sample accumulation
• Physically-based Cook-Torrance BRDF (GGX NDF, Fresnel-Schlick, VNDF importance sampling)
• Next Event Estimation (NEE) with explicit emissive triangle sampling
• Multiple Importance Sampling (MIS) between BRDF and NEE paths
• HDR environment map lighting (equirectangular)
• tonemapping + gamma correction + firefly clamping
• glTF 2.0 / GLB loading (fastgltf) and Wavefront OBJ (tinyobjloader)
• PBR material textures: albedo, metallic-roughness, normal, emissive
• shader hot reloading
• ImGui UI: camera editor, light controls, frame time graph (very basic so far)
• Scene config persistence (scene.ini) with Ctrl+S save
• Headless mode (engine_headless) for offline batch rendering to PNG

Here are some static renders:

• 4 bounces, 1000 samples
• 4 bounces, 4000 samples
• 4 bounces, 1000 samples, no directional light