Hello there!

I'm Steve Trettel, a mathematician who is also interested in computers, physics, and language.

I'm currently an assistant professor at the University of San Francisco. This is both my personal and academic website, so you’ll find math I like explaining, updates on my computer graphics hobby, physics I'm learning, and some favorite meals, among other things.

Illustration

All Art

Code

Render

Pathtracer All Glass

Glass Bunny

Pathtrace Static

Pathtrace Subsurface

Pathtrace Glassball

Pathtrace Metalball

Pathtrace Phong Shadow Lights

Pathtrace Phong Shadow

Pathtrace Phong Lights

All Code

Notes

Note: Integral Axioms Values:

Note: 2D Geodesic Cheatsheet:

Note: Quadratics for Grown Ups:

Note: Graph Geodesics Extrinsic:

Note: Graph Geodesics Variational (+Gravity):

Note: Graph Geodesics Intrinsic:

Note: Differential Forms Cheatsheet:
Tricks for working with the Laplacian using Differential Forms

Note: Hyperbolic Dodecahedra Ball Model:

Note: Hyperbolic Dodecahedra:

Lie Derivative, Geometrically:

All Notes

Talks

All Talks

Courses

Papers

All Papers

Cooking

All Cooking