University of Bonn
- Focus on Real-Time GI, Neural Rendering, and Machine Learning
Oct 2025 – present
Julian C. Stamm
Publications
Photon-Driven Neural Radiance Caching
Introduces a new photon-based training method for Neural Radiance Caching, reducing FLIP error by up to two-thirds in caustic scenes with only a ~2 ms frame-time overhead. A continuation of my Bachelor's thesis, presented at I3D 2026.
- Poster
- I3D Companion 2026
- https://cg.cs.uni-bonn.de/publications/stamm-2026-photon
- 10.1145/3807895.3807923
May 2026
Experience
Teaching Assistant for "Foundations of 4D/6D Object Capture for Virtual Environments"
- Held daily block tutorials on NeRFs, IK, 3DGS, differentiable rendering, etc.
Feb 2026 – Mar 2026
Teaching Assistant for "Introduction to Computer Graphics"
- Held weekly tutorials on rasterization, ray tracing, BSDFs, splines, etc.
- Assisted in creating exercises and exams
- Developed and maintained a modern OpenGL/C++ framework used in the exercises and the animation competition
Apr 2024 – present
Temporary Worker in Software Development Team
Developed custom CAN bus logger.
May 2021 – Sept 2021
Projects
tsnn (unpublished)
High-performance Slang-native tiny-cuda-nn alternative using Slang's auto-differentiation.
- Implemented neural spline flows, hash grid encodings, MLPs, Adam, and more
- Achieves full kernel fusion with Falcor path tracer
- Slightly outperforms tiny-cuda-nn in my NRC benchmark
- Written for my current lab research on real-time neural importance sampling
May 2026 – present
PhotonNRC
Falcor implementation of the poster "Photon-Driven Neural Radiance Caching".
- Rebuilt the method as a clean Falcor render graph, improving modularity and performance
- Implemented SPPM with hardware-accelerated inverse radius search and stochastic accumulation, NRC via tiny-cuda-nn, and SPPC training
Feb 2025 – present
BiNRC
OptiX implementation of my Bachelor's thesis "Bidirectional Neural Radiance Caching".
- Built an unbiased path tracer with MIS and NEE and a basic Disney principled BSDF
- Implemented SPPM with hardware-accelerated inverse radius search
- Implemented NRC via tiny-cuda-nn with bidirectional and photon-driven (Photon-NRC) training
Feb 2025 – Sept 2025
nBounce
Personal real-time path tracer with software BVH construction and traversal.
- Written in Rust and wgpu
- SAH-based BVH construction, Owen-scrambled RQMC sampling, VNDF importance sampling
Aug 2024 – present
Stable Real-Time Simulation of Mesoscopic Glints
Computer Graphics Lab, part of my B.Sc. in Computer Science.
- Implemented the discrete stochastic microfacet model from "Real-Time Rendering of Glinty Appearances Using Distributed Binomial Laws on Anisotropic Grids" by Thomas Deliot and Laurent Belcour
Oct 2023 – Mar 2024
gltemplate
OpenGL 4.6 framework developed for CG exercises.
- Written in C++ and CMake, RAII-based resource management, texture/mesh loading utilities
Aug 2023 – present
Others
bevy_trail
Work-in-progress bevy plugin for high-performance GPU-based trails in wgpu.
Apr 2026 – present
P2P Multiplayer Game
Working on a Python-moddable P2P-multiplayer card game in Rust using bevy.
Sept 2025 – present
monarch-tree
Procedural tree and butterfly-swarm animation for the course "Introduction to Computer Graphics"
- Growing the tree with a self-devised model that steers branches using boids-like forces (up, spread, forward, noise).
Jun 2023 – Sept 2023
Skills
Languages
APIs
Research Interests
Spoken Languages
Tools
Atkinson Dithering Converter
WebGL Atkinson dithering — turn any image into 1-bit pixel art.
B&W Converter
Hardware-accelerated luminance-preserving black & white conversion.
Stencil Converter
WebGL gaussian blur + thresholding for stencil-ready images.
