monte-carlo

Learn about Monte Carlo methods for radiation and conduction.

stack

• rust language
• wgpu binding library
• wgsl shader language

running (you'll need decent GPU that supports float textures - tested on Nvidia RTX 2070 Super)

• Install rust https://www.rust-lang.org/tools/install
• cargo run
• A fixed 1280x1024 screen will be opened
• Esc to quit
• Left mouse click and drag to orbit (framerate probably will be quite low)
• Right mouse click and drag to change slice plane
• Mouse wheel to zoom

configuration

https://github.com/thomas-gale/monte-carlo/blob/main/src/bvh_raytracing/constants.rs

plan

intro

• Follow (again) Ray Tracing in One Weekend implementing as much code as wgsl fragment/compute shaders
• Extend to https://raytracing.github.io/books/RayTracingTheNextWeek.html (focus on bvh section, rectangles/lights and volumes)

mesh

• Support loading of .obj / mesh files and parse into the bvh hittables with other primitives
• Signed distance and ray intersection shader functions for triangles

monte carlo based simulations sampling e.g. https://www.cs.cmu.edu/~kmcrane/Projects/MonteCarloGeometryProcessing/index.html & https://cs.dartmouth.edu/wjarosz/publications/sawhneyseyb22gridfree.html

• Laplace walk on spheres
• Poisson walk on spheres

code structure

• Refactor from direct wgpu impl to bevy and re-structure the code into the ECS pattern.

pictures