02SimulationHeat Diffusion Simulation
Thermodynamics simulation using a finite-difference approach to the heat diffusion equation, with graphics and compute running on the GPU.
Software Engineer
RazielMoesch
I build GPU simulations, graphics tools, and machine learning systems, from a lattice Boltzmann solver in Rust to custom CUDA inference kernels.
01 — About
I enjoy web-based projects like web-deployed computer vision models and computational physics simulations, and I really enjoy teaching, so some of this work ships as tutorials too.
01
GPU Compute
Compute shaders in WebGPU and wgpu, and hand-written CUDA kernels.
RustFluid · WebHeat · CudaRT
02
Simulation
Lattice Boltzmann CFD, Stable Fluids, and finite-difference heat diffusion.
RustFluid · Fluid Simulation · WebHeat
03
Graphics
WGSL rendering, particle systems, and STL / glTF pipelines in Rust and the browser.
Sphere & Orbit · STL Viewer · Model To Model
04
Machine Learning
Models built from scratch in PyTorch, from face detection to transformers, plus a CUDA inference runtime.
Face Detection · TinyAlpaca · CudaRT
02 — Featured
Real fluid dynamics, on a laptop GPU
RustFluid
GPU Lattice Boltzmann Fluid Solver
A GPU-accelerated lattice Boltzmann solver in Rust + wgpu that reaches 85% of FluidX3D's throughput on the same laptop GPU.
- 85.1%
- of FluidX3D throughput
- 1,161.73
- median MLUPS
- 9.4M
- lattice cells
- 25,000
- Reynolds number
FluidX3D cylinder case (768×192×64, D3Q19 BGK, FP16 storage) on an RTX 3050 4GB Laptop GPU, run October 2, 2026. FluidX3D reference: 1,365.17 MLUPS.
03 — Selected work
Simulations & graphics
02Simulation
03SimulationStable Fluids in the Browser
An interactive grid-based fluid simulation running entirely on the GPU in your browser. Drag to stir it.
04GraphicsAnimated glTF Morphing
A wgpu toolset that animates the conversion of one glTF model into another.
05GraphicsGPU Particle System
Tens of thousands of glowing particles on a Fibonacci sphere, with a fraction peeling off into drifting orbits. All motion runs in a WGSL vertex shader.
06GraphicsWGPU Rust Tutorial
A native STL renderer with camera and lighting in Rust + wgpu — written up as a full beginner tutorial.
04 — Also on GitHub
Machine learning & systems
- CudaRTA C++17 inference runtime with custom CUDA kernels, GPU tensor storage and a PyTorch weight-export pipeline, validated and benchmarked against eager and compiled PyTorch.
- Face DetectionA lightweight, anchor-free face detector built from scratch in PyTorch — depthwise-separable backbone, tiny FPN, decoupled heads — designed to eventually run on embedded hardware.
- TinyAlpacaA compact decoder-only transformer with a custom BPE tokenizer, built for small language model training on Tiny Shakespeare.