Erfan Momeni

RTVK

2025–Present · Personal project

A Vulkan path tracer for physically based light transport, glTF materials, and hardware ray tracing.

C++ · Vulkan · GLSL · glTF
Bistro street scene path-traced in RTVK
Bistro rendered in RTVK with progressive path tracing.

Overview

RTVK is a Vulkan ray-tracing renderer I use to develop and study modern light-transport techniques from the renderer architecture down to GPU execution. It implements the complete path from glTF scene data to GPU resources, acceleration structures, material evaluation, sampling, and image accumulation.

Highlights

  • Vulkan hardware ray tracing with BLAS and TLAS
  • glTF scene and physically based material support
  • BSDF importance sampling and next-event estimation
  • Transmission, alpha materials, normal mapping, and volumetric media
  • Ray-cone texture filtering, exposure, and tone mapping

Screenshots

Path-traced dining room in RTVK with direct sun lighting
Dining-room scene with a finite sun light and progressive accumulation.
Path-traced bathroom interior in RTVK
Interior scene used to inspect textured materials and indirect lighting.
San Miguel courtyard path-traced in RTVK
San Miguel used to exercise large-scene geometry, materials, textures, and alpha masking.