arctic char*

Small Odin + SDL3 GPU sandbox

Current features:

SDL3 window and SDL GPU setup
Metal/MSL on macOS, SPIR-V on Linux-ish platforms, DXIL on Windows
color-only HLSL shader compiled with SDL_shadercross
GLB mesh loading through Odin's vendor:cgltf
generic renderer mesh handles, depth testing, and 4x MSAA when supported
Box3D world with fixed-timestep stepping
static ground collision and 100 falling Suzanne bodies spawned over time

The project is pinned to Odin dev-2026-07 via mise.toml.

Build

Build and run:

just build-and-run

Other useful commands:

just build
just build-release
just run

just build copies assets/ into build/assets/ after compiling.

Shaders

shaders/hlsl/shader.hlsl is the source of truth. The generated MSL, SPIR-V, and DXIL outputs are checked in so the project can build without running the shader compiler every time.

Regenerate shaders:

just shaders

Check that generated shaders are in sync:

just check-shaders

The justfile expects shadercross on PATH.

arctic-char

arctic char*

Build

Shaders